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MAX1686HEUA+T

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MAX1686HEUA+T

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Part Number MAX1686HEUA+T
Manufacturer Maxim Integrated
Description IC CHARGE PUMP SIM CARD 8UMAX
Datasheet MAX1686HEUA+T Datasheet
Package 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
In Stock 24,704 piece(s)
Unit Price $ 1.6524 *
Lead Time Can Ship Immediately
Estimated Delivery Time Aug 9 - Aug 14 (Choose Expedited Shipping)
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Part Number # MAX1686HEUA+T (PMIC - Voltage Regulators - Special Purpose) is manufactured by Maxim Integrated and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

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MAX1686HEUA+T Specifications

ManufacturerMaxim Integrated
CategoryIntegrated Circuits (ICs) - PMIC - Voltage Regulators - Special Purpose
Datasheet MAX1686HEUA+TDatasheet
Package8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Series-
ApplicationsCharge Pump, SIM Cards
Voltage - Input2.7 V ~ 4.2 V
Number of Outputs1
Voltage - Output5V
Operating Temperature-40°C ~ 85°C
Mounting TypeSurface Mount
Package / Case8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package8-uMAX

MAX1686HEUA+T Datasheet

Page 1

Page 2

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. General Description The MAX1686 provides power for dual-voltage sub- scriber ID module (SIM) cards in portable applications such as GSM cellular phones. Designed to reside in the portable unit (cellular phone handset), the 1MHz charge pump converts a 2.7V to 4.2V input to regulated 5V out- put. The MAX1686H has a nominal output voltage of 5.0V, while the MAX1686 is set to 4.75V to reduce SIM- card current drain. The charge pump has only 45µA qui- escent supply current, which reduces to 3µA when a 3V-capable SIM card is being powered and the charge pump is disabled. An internal input/output shorting switch provides power for 3V SIM cards. The MAX1686/MAX1686H require only three external capacitors around their space-saving, thin (1mm) 8-pin µMAX packages. Applications GSM Cellular Phones PCS Phones Portable POS Terminals Personal Communicators Features ♦ 2.7V to 4.2V Input Range ♦ 12mA min Charge-Pump Output Current ♦ 45µA Quiescent Supply Current ♦ 0.1µA Supply Current in Shutdown Mode ♦ 5.0V Regulated Charge-Pump Output (MAX1686H) 4.75V Regulated Charge-Pump Output (MAX1686) ♦ Input-Output Shorting Switch for 3V Cards ♦ Small External Components (Uses a 0.047µF, 0.1µF, and a 2.2µF Capacitor) ♦ Output Driven to Ground in Shutdown Mode ♦ Super-Small 8-Pin µMAX Package ♦ Soft-Start and Short-Circuit Protection M A X 1 6 8 6 /M A X 1 6 8 6 H 3V to 5V Regulating Charge Pumps for SIM Cards ________________________________________________________________ Maxim Integrated Products 1 1 2 3 4 8 7 6 5 OUT CXP CXN PGNDGND IN SHDN 3/5 MAX1686 MAX1686H µMAX TOP VIEW MAX1686 MAX1686H IN CXN CXP GND PGND CIN INPUT 2.7V TO 4.2V OUTPUT VIN OR 5V/20mA CX COUT SHDN 3/5 OUT Typical Operating Circuit 19-1376; Rev 1; 12/98 PART MAX1686EUA -40°C to +85°C TEMP. RANGE PIN-PACKAGE 8 µMAX Pin Configuration Ordering Information MAX1686HEUA -40°C to +85°C 8 µMAX

Page 3

M A X 1 6 8 6 /M A X 1 6 8 6 H 3V to 5V Regulating Charge Pumps for SIM Cards 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = VSHDN = 3.3V, 3/5 = GND, CX = 0.22µF, COUT = 10µF (see Applications Information section to use smaller capacitors), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) IN, OUT, SHDN, 3/5 to GND.....................................-0.3V to +6V CXP to GND..............................................-0.3V to (VOUT + 0.3V) CXN to GND ................................................-0.3V to (VIN + 0.3V) PGND to GND ......................................................-0.3V to + 0.3V OUT Short Circuit to GND ..........................................Continuous IN-to-OUT Current...............................................................50mA Continuous Power Dissipation (TA = +70°C ) 8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW Operating Temperature Range MAX1686EUA/MAX1686HEUA........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +165°C Lead Temperature (soldering, 10sec) .............................+300°C PARAMETER CONDITIONS MIN TYP MAX UNITS Input Voltage Range 2.7 4.2 V Input Undervoltage-Lockout Threshold Voltage 0.8 1.2 1.6 V Quiescent Supply Current Charge pump enabled, no load, 3/5 = GND µA Charge pump disabled, no load, 3/5 = IN Shutdown Supply Current VIN = 3.6V, SHDN = GND 0.1 5 VOUT Output Voltage 4.55 4.75 5.25 V3/5 = VIN = 3.0V 2.5 5 Ω OUT Short-Circuit Current 3/5 = GND or IN 20 100 200 mA Logic Input Low Voltage SHDN, 3/5 0.5 · VIN 0.3 · VIN V Logic Input High Voltage SHDN, 3/5 0.7 · VIN 0.5 · VIN V Logic Input Leakage Current SHDN, 3/5 = GND or IN 0.1 1 µA 4.75 5.00 5.25 OUT Discharge Switch On-Resistance 3/5 = GND or IN, SHDN = GND 80 200 Ω IN-to-OUT Switch On-Resistance TA = +25°C 800 1000 1200 µA Note 1: Electrical specifications are measured by pulse testing and are guaranteed for a junction temperature within the operating temperature range, unless otherwise noted. Limits are 100% production tested at TA = +25°C. Limits over the entire operat- ing temperature range are guaranteed through correlation using Statistical Quality Control (SQC) methods and are not pro- duction tested. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. TA = +25°C 45 100 3 10 Charge-Pump Frequency TA = -40°C to +85°C 700 1300 kHz TA = -40°C to +85°C 150 3/5 = IN VIN MAX1686 MAX1686H VIN = 2.7V to 4.2V, load = 0 to 12mA

Page 4

M A X 1 6 8 6 /M A X 1 6 8 6 H 3V to 5V Regulating Charge Pumps for SIM Cards _______________________________________________________________________________________ 3 0 0.1 100101 EFFICIENCY vs. LOAD CURRENT (5V MODE) 30 10 70 50 90 40 20 80 60 M A X 1 6 8 6 -0 1 LOAD CURRENT (mA) EF FI C IE N C Y ( % ) VIN = 3.6V VIN = 2 .7V VIN = 3.3V 0 0 EFFICIENCY vs. INPUT VOLTAGE (5V MODE) M A X 1 6 8 6 -T O C 2 INPUT VOLTAGE (V) EF FI C IE N C Y ( % ) 10 20 30 40 50 60 70 80 90 1 2 3 4 5 6 ILOAD = 10mA ILOAD = 1mA 1000 0.1 0 21 4 6 NO-LOAD INPUT CURRENT vs. INPUT VOLTAGE (3V MODE) 1 10 100 M A X 1 6 8 6 -0 3 INPUT VOLTAGE (V) IN P U T C U R R EN T (µ A ) 3 5 10,000 1 0 21 4 6 NO-LOAD INPUT CURRENT vs. INPUT VOLTAGE (5V MODE) 10 100 1000 M A X 1 6 8 6 -0 4 INPUT VOLTAGE (V) IN P U T C U R R EN T (µ A ) 3 5 0 2 1 4 3 5 6 0 2 31 4 5 6 OUTPUT VOLTAGE vs. INPUT VOLTAGE (3V MODE) M A X 1 6 8 6 -0 7 INPUT VOLTAGE (V) O U TP U T V O LT A G E (V ) NO LOAD 3.20 3.24 3.22 3.28 3.26 3.30 3.34 3.32 0 5 10 15 20 25 OUTPUT VOLTAGE vs. LOAD CURRENT (3V MODE) M A X 1 6 8 6 -0 5 LOAD CURRENT (mA) O U TP U T V O LT A G E (V ) 4.70 0.1 100101 MAX1686 OUTPUT VOLTAGE vs. LOAD CURRENT (5V MODE) 4.73 4.71 4.77 4.75 4.80 4.74 4.72 4.78 4.79 4.76 M A X 1 6 8 6 -0 6 LOAD CURRENT (mA) O U TP U T V O LT A G E ( V ) VIN = 2.7V VIN = 3 .3V VIN = 3.6V 0 2 1 4 3 5 6 0 2 31 4 5 6 OUTPUT VOLTAGE vs. INPUT VOLTAGE (5V MODE) M A X 1 6 8 6 -0 8 INPUT VOLTAGE (V) O U TP U T V O LT A G E (V ) NO LOAD MAX1686 MAX1686H 2.5µs/div OUTPUT WAVEFORM (ILOAD = 10mA) M A X 1 6 8 6 -0 9 VOUT (20mV/div) 5V MODE, AC COUPLED, COUT = 10µF  0.1µF Typical Operating Characteristics (See Typical Operating Circuit, CIN = 0.47µF, CX = 0.22µF, COUT = 10µF, VIN = 3.3V, TA = +25°C, unless otherwise noted.)

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M A X 1 6 8 6 /M A X 1 6 8 6 H 3V to 5V Regulating Charge Pumps for SIM Cards 4 _______________________________________________________________________________________ Typical Operating Characteristics (continued) (See Typical Operating Circuit, CIN = 0.47µF, CX = 0.22µF, COUT = 10µF, VIN = 3.3V, TA = +25°C, unless otherwise noted.) 25µs/div OUTPUT WAVEFORM (ILOAD = 1mA) M A X 1 6 8 6 -1 0 VOUT (20mV/div) 5V MODE, AC COUPLED, COUT = 10µF  0.1µF 2.5ms/div LINE-TRANSIENT RESPONSE M A X 1 6 8 6 -1 1 VIN (500mV/div) VIN = 2.8V to 3.3V, ILOAD = 10mA, 5V MODE, AC COUPLED VOUT (50mV/div) 2.5ms/div LOAD-TRANSIENT RESPONSE M A X 1 6 8 6 -1 2 ILOAD (10mA/div) ILOAD = 0 TO 10mA, 5V MODE, AC COUPLED VOUT (50mV/div) 250µs/div START-UP WAVEFORM (3V MODE, RL = 500Ω) M A X 1 6 8 6 -1 3 SHDN (5V/div) VOUT (1V/div) 0V 1ms/div SHUTDOWN WAVEFORM (3V MODE, NO LOAD) M A X 1 6 8 6 -1 6 SHDN (5V/div) VOUT (1V/div) RL = 500Ω 0V 250µs/div START-UP WAVEFORM (5V MODE, RL = 500Ω) M A X 1 6 8 6 -1 4 SHDN (5V/div) VOUT (1V/div) 0V 250µs/div 3V MODE TO 5V MODE WAVEFORM (RL = 500Ω) M A X 1 6 8 6 -1 5 3/5 (5V/div) VOUT (1V/div) 0V 1ms/div SHUTDOWN WAVEFORM (5V MODE, NO LOAD) M A X 1 6 8 6 -1 7 SHDN (5V/div) VOUT (1V/div) 0V 500µs/div 5V MODE TO 3V MODE WAVEFORM (NO LOAD) M A X 1 6 8 6 -1 8 3/5 (5V/div) VOUT (1V/div) 0V

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M A X 1 6 8 6 /M A X 1 6 8 6 H 3V to 5V Regulating Charge Pumps for SIM Cards _______________________________________________________________________________________ 5 NAME FUNCTION 1 3/5 3V/5V Select Input. When low, the output is regulated at 4.75V for MAX1686, 5.00V for MAX1686H. When high, the output is shorted to the input. 2 SHDN Active-Low Shutdown Input. SHDN = GND is off. Output is actively pulled low in shutdown. PIN 3 IN Supply Input Pin. Can range from 2.7V to 4.2V. Bypass to ground with a ceramic capacitor. 4 GND Ground Pin 8 OUT Power Output. Bypass to GND with an output filter capacitor. 7 CXP Positive Terminal of the Charge-Pump Transfer Capacitor 6 CXN Negative Terminal of the Charge-Pump Transfer Capacitor 5 PGND Power Ground. Connect to GND through a short trace. Pin Description _______________Detailed Description The MAX1686/MAX1686H charge pumps provide two modes of operation: 3V mode or 5V mode. The devices consist of an error amplifier, a 1.23V bandgap refer- ence, an internal resistive feedback network, a 1MHz oscillator, high-current MOSFET drivers and switches, and a power-management block as shown in the Functional Diagram (Figure 1). In 3V mode (3/5 = IN), the input is connected to the output through a 2.5Ω switch. In 5V mode (3/5 = GND), the MAX1686’s output voltage is regulated at 4.75V (5.00V for the MAX1686H) with a 2.7V to 4.2V input and can deliver more than 12mA of load current. Designed specifically for compact applications, these regulators require only three small external capacitors. The Skip Mode control scheme provides high efficiency over a wide output current range. The devices offer a shutdown feature which actively discharges the output to ground and reduces the supply current to less than MAX1686 MAX1686H CX POWER MANAGEMENT DIS SS OSC CXPCXN EN SHDN 3/5 1.23V GND PGND IN S1 S2 PWROK OUT Figure 1. Functional Diagram

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M A X 1 6 8 6 /M A X 1 6 8 6 H 3V to 5V Regulating Charge Pumps for SIM Cards 6 _______________________________________________________________________________________ 1µA. Other features include soft-start, undervoltage lockout, and short-circuit protection. Charge-Pump Control Figure 2 shows an idealized, unregulated charge-pump voltage doubler. The oscillator runs at a 50% duty cycle. During one half of the period, the transfer capac- itor (CX) charges to the input voltage. During the other half, the doubler stacks the voltage across CX and the input voltage, and transfers the sum of the two voltages to the output filter capacitor (COUT). The MAX1686 uses Skip Mode control to regulate its output voltage and to achieve good efficiency over a large output current range. When the comparator detects that the output voltage is too low, the 1MHz oscillator is enabled and CX is switched. When the output voltage is above regu- lation, the oscillator is disabled and CX is connected at the input. Soft-Start In the 5V mode (3/5 = GND), the start-up current is lim- ited by the soft-start control to typically 200mA, inde- pendent of the load. Until the output voltage reaches VIN / 2, the input is connected to the output through a 50Ω series P-channel MOSFET and the charge pump is disabled. For VIN / 2 < VOUT < 4.75V (5.00V for MAX1686H) and for a maximum of 2ms the charge pump is active, but RON of the switch S2 is limited to 50Ω . This limits typical current surges associated with charge pumps at start-up. When soft-start is complete, VOUT > 4.75V (5.00V for MAX1686H) or 2ms (whichever occurs first), switch S2’s on-resistance is decreased to minimize losses. In 3V mode (3/5 = IN), the start-up current is limited by the 50Ω series P-channel MOSFET connected between IN and OUT until the output voltage reaches VIN / 2. For VOUT > VIN / 2, RON is reduced to 2.5Ω . With a 500Ω load the device turns on in less than 1.5ms (see Typical Operating Characteristics for graphs of start-up waveforms). Shutdown Mode Driving SHDN low places the device in shutdown mode, which disables the oscillator, the control logic, and the reference. Placing the device in shutdown mode reduces the no-load supply current to less than 1µA; the output is actively discharged through the internal N- channel FET and disconnected from the input. In normal operation, SHDN is driven high or connected to IN. Applications Information Capacitor Selection The MAX1686 requires only three external capacitors. The capacitor values are closely linked to the output current capability, noise, and switching frequency. The 1MHz oscillator frequency minimizes capacitor size compared to lower-frequency charge pumps. Generally, the transfer capacitor (CX) will be the smallest, the input capacitor (CIN) will be twice the size of CX, and the output capacitor (COUT) can be from 10 to 50 times CX. The suggested capacitor values are CIN = 0.1µF, CX = 0.047µF, and COUT = 2.2µF as shown in Figure 3. For input voltages as low as 2.7V, the following values are recommended: CIN = 0.47µF, CX = 0.22µF, and COUT = 10µF. Table 1 lists the perfor- CX OSC CXPCXN GND IN S1 S2 OUT CIN COUT Figure 2. Unregulated Voltage Doubler MAX1686 IN 3 8 2 1 4 5 6 7 CXN CXP GND PGND CIN 0.1µF 3V 5V INPUT 2.85V TO 4.2V OUTPUT VIN OR 4.75V AT 20mA CX 0.047µF COUT 2.2µF (CERAMIC) SHDN 3/5 OUT Figure 3. Standard Application Circuit

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M A X 1 6 8 6 /M A X 1 6 8 6 H 3V to 5V Regulating Charge Pumps for SIM Cards _______________________________________________________________________________________ 7 mance with different input voltages and an additional small 0.1µF capacitor at the output. The extra 0.1µF capacitor improves start-up capability under full load and reduces output ripple for high input voltages. Table 2 lists the recommended capacitor manufacturers. Low-ESR capacitors, such as surface-mount ceramics, decrease noise and give the best efficiency. Capaci- tance and ESR variation over temperature need to be taken into consideration for best performance in applica- tions with large operating temperature ranges. For applications where the minimum input voltage is 3V or greater, the flying capacitor, CX, can be decreased to 0.1µF. This provides two benefits: the inrush surge current at start-up is reduced, and the output ripple voltage (especially at high input voltages) is also reduced. Layout Considerations High switching frequencies and large peak currents make PC board layout an important part of design. All capacitors should be soldered close to the IC. Con- nect ground and power ground through a short, low- impedance trace. Keep the extra copper on the board and integrate it into ground as a pseudo-ground plane. On multilayer boards, route the star ground using com- ponent-side copper fill, then connect it to the internal ground plane using vias. Ensure that the load is con- nected directly across the output filter capacitor. 2.7 1 30 84.3 2.7 10 30 86.2 3.3 1 60 69.5 3.3 10 60 70.5 3.6 1 80 63.2 3.6 10 80 63.8 4.2 1 120 52.3 4.2 10 120 52.1 Table 2. Recommended Surface-Mount Capacitor Manufacturers VALUE (µF) DESCRIPTION MFR. PHONE NUMBER 1 to 47 595D-series tantalum Sprague (603) 224-1961 4.7 to 47 TPS-series tantalum AVX (803) 946-0690 1 to10 267 series tantalum Matsuo (714) 969-2491 0.047 to 2.2 X7R ceramic TDK (847) 390-4373 AVX (803) 946-0690 INPUT VOLTAGE (V) LOAD CURRENT (mA) VOUT RIPPLE (mV) EFFICIENCY (%) Table 1. Ripple and Efficiency vs. Input Voltage and Load Current Chip Information TRANSISTOR COUNT: 840

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Guad*****e Owen

July 4, 2020

Super easy to replace and labelled terminals made it a quick replacement.

Boo*****Weber

July 3, 2020

Comparison with other company, Heisener is my first choice for supplier.

Joy*****rpe

June 23, 2020

Used these for a solar project, and they are working great.

Heid*****rson

June 19, 2020

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June 19, 2020

A well designed product that fit my custom PCB's perfectly. Easy to use. Sturdy construction. Highly recommend to all PCB builders.

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June 18, 2020

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Eile*****lson

June 17, 2020

Outstanding supplier! Heisener is on a very short list of suppliers I can recommend. From stock, pricing, ease of ordering and great service, they get it all.

Maxw*****Gaba

June 14, 2020

Excellent service over extended period of time. Incredibly fast shipping, never any errors. Couldn't be more pleased.

Ezek*****Shan

June 12, 2020

You're my good supplier. I appreciate Heisener Electronics on many levels.

Jael*****rora

June 11, 2020

Very good contact, well packed, hope to buy from you again.

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