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RT8802AGQV

hot RT8802AGQV

RT8802AGQV

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Part Number RT8802AGQV
Manufacturer Richtek USA Inc.
Description IC CTRLR PWM MULTI-PHASE 40VQFN
Datasheet RT8802AGQV Datasheet
Package 40-VFQFN Exposed Pad
In Stock 3062 piece(s)
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RT8802AGQV

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RT8802AGQV Specifications

ManufacturerRichtek USA Inc.
CategoryIntegrated Circuits (ICs) - PMIC - Voltage Regulators - Special Purpose
Datasheet RT8802AGQV Datasheet
Package40-VFQFN Exposed Pad
Series-
ApplicationsController, Intel VRD10, VRD11, AMD CPU
Voltage - Input4.5 V ~ 5.5 V
Number of Outputs5
Voltage - OutputAdjustable
Operating Temperature-40°C ~ 85°C
Mounting TypeSurface Mount
Package / Case40-VFQFN Exposed Pad
Supplier Device Package40-VQFN (6x6)

RT8802AGQV Datasheet

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RT8802A ® DS8802A-09 March 2012 www.richtek.com 1 ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. 2/3/4/5-Phase PWM Controller for High-Density Power Supply General Description The RT8802A is a 2/3/4/5-phase synchronous buck controller specifically designed to power Intel® / AMD next generation microprocessors. It implements an internal 8-bit DAC that is identified by VID code of microprocessor directly. RT8802A generates VID table that conform to Intel® VRD10.x and VRD11 core power with 6.25mV increments and 0.5% accuracy. RT8802A adopts innovative time-sharing DCR current sensing technique to sense phase currents for phase current balance, load line setting and over current protection. Using a common GM to sense all phase currents eliminates offset and linearity variation between GMs in conventional current sensing methods. As sub-milli-ohm-grade inductors are widely used in modern motherboards, slight offset and linearity mismatch will cause considerable current shift between phases. This technique ensures good current balance in mass production. Other features include over current protection, programmable soft start, over voltage protection, and output offset setting. RT8802A comes to a small footprint package with VQFN-40L 6x6. Features 5V Power Supply 2/3/4/5-Phase Power Conversion with Automatic Phase Selection 8-bit VID Interface, Supporting Intel VRD11/VRD10.x and AMD K8, K8_M2 CPUs VR_HOT and VR_FAN Indication Precision Core Voltage Regulation Power Stage Thermal Balance by DCR Current Sensing Adjustable Soft-start Over Voltage Protection Adjustable Frequency and Typical at 300kHz per Phase Power Good Indication 40-Lead VQFN Package RoHS Compliant and 100% Lead (Pb)-Free Applications Intel® /AMD New generation microprocessor for Desktop PC and Motherboard Low Output Voltage, High power density DC/DC Converters Voltage Regulator ModulesOrdering Information Pin Configurations (TOP VIEW) VQFN-40L 6x6 PWM5 PWM4 PWM3 PWM2 PWM1 ISP1 ISP2 ISP3 ISP4 ISP5 VTT/EN VR_Ready FBRTN FB COMP SS QRSEL VR_FAN VR_HOT TSEN IO U T D V D R T O F S A D J T C O C IM A X IS N 1 IS N 2 4 IS N 3 5 V ID _S E L V ID 0 V ID 1 V ID 2 V ID 3 V ID 4 V ID 5 V ID 6 V ID 7 V D D 30 29 28 27 26 25 24 23 22 21 31323334353637383940 1 2 3 4 5 6 7 8 9 10 20191817161514131211 GND 41 Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Package Type QV : VQFN-40L 6x6 (V-Type) Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with Halogen Free and Pb free) RT8802A

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RT8802A 2 DS8802A-09 March 2012www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Marking Information RT8802APQV RT8802A PQV YMDNN RT8802APQV : Product Number YMDNN : Date Code RT8802AZQV RT8802AZQV : Product Number YMDNN : Date CodeRT8802A ZQV YMDNN RT8802A GQV YMDNN RT8802AGQV RT8802AGQV : Product Number YMDNN : Date Code

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RT8802A 3 DS8802A-09 March 2012 www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Typical Application Circuit C 6 L 1 V C O R E 1 4 0 3 7 3 8 3 9 3 6 3 3 3 4 3 5 2 5 2 4 2 3 2 2 2 1 1 0 1 1 1 9 8 2 7 1 4 5 4 2 6 2 7 2 8 3 0 2 9 1 3 1 7 1 6 6 1 8 15 1 9 2 0 3 1 3 2 1 2 1 0 0k 1 0k 10 k1 0 k B T X _5 V P G O O D 9 .5 2 k N C N C 0 .1 µ F 0 0 1 2k 5 6n F 5. 6 p F 4 7 0p F 2 .2 n F 1 5 k 1. 5 k B T X _ 12 V B T X _ 5 V V ID _ S E L V ID 0 V ID 1 V ID 2 V ID 3 V ID 4 V ID 5 V ID 6 V ID 7 10 0 .1 u F 1 0 k 1 .1 k 3 C P U _V S S C P U _ V C C B T X _ 5 V 4 7 0 1 0 0k 4 7 0 4 7 0 1 0 0k 5 1 0 5 1 0 51 0 5 1 0 1 µ F 1 µ F 1µ F 1µ F 10 0 G N D P W M 5 IS P 2 IS P 4 IS P 3 IS P 1 IS N 2 4 IS N 3 5 IS P 5 IOUT D V D RT OFS ADJ TCOC IMAX COMP IS N 1 FB VTT/EN VR_Ready FBRTN PWM2 PWM1 SS QRSEL VR_FAN VR_HOT TSEN V ID _S E L V ID 0 V ID 1 V ID 2 V ID 3 V ID 4 V ID 5 V ID 6 V ID 7 V D D P W M 3 P W M 4 R T 8 8 0 2A V C O R E 3 5 V C O R E 2 4 V C O R E 1 V T T R 1 R 2 R 3 R 4 R 5 R 6 R 7 R 8 R 9 R 1 0 R 1 1 R 1 2R 1 3 R 1 4 R 1 5 R 16 R 1 8 R 1 9 R 2 1 R 2 2 R 2 3 R 24 R 25 R 2 6R 20 R 3 0 R 3 1 R 3 2 R 3 3 R 27 C 1 C 3 C 4 C 5 C 7 C 8 C 9 C 10 C 1 1 C 1 2 C 1 3 N C C 6 9 N C R 28 N C R 2 9 R 1 7 B T X _ 5 V F or A M D F or In te l V D D IO F or K 8 G N D F or K 8_ M 2 E na bl e F o r In te l F or A M D V D D IO N C B T X _5 V B T X _ 5 V R 4 2 R 43 N T C 1 0µ F x 1 8 V C C V S S C 41 to C 50 5 6 0µ F x 1 0 C 51 to C 68 V C C V IN P G N D B O O T U G A T E P H A S E LG A T E R T 9 6 1 91 8 7 5 6 24 L 3 V IN 1 µ F 0. 1 µ F 1 0 B T X _ 1 2V 4 .7 µ F 1 2 0 0µ F 2. 2 3. 3 n F 1 N 4 1 4 8 N C 3 4. 7µ F 4. 7 µ F Q 9 Q 10 Q 11 Q 12 V C O R E 3 5 R 38 R 3 9 C 27 C 2 8 C 2 9 C 3 0 C 3 1 C 3 2 C 3 3 IP D 09 N 03 LA IP S 0 6 N 0 3L A V IN V C C V IN P G N D B O O T U G A T E P H A S E LG A T E R T 96 191 8 7 5 6 24 L 4 1 µ F 0. 1 µ F 1 0 B T X _1 2V 4. 7µ F 1 20 0µ F 2 .2 3. 3n F 1N 4 14 8 N C 3 4 .7 µ F 4 .7 µ F Q 13 Q 14 Q 15 Q 16 V C O R E 2 4 10 k 4 .3 k R T 1 R T 2 R 40 R 4 1 C 3 4 C 3 5 C 36 C 3 7 C 3 8 C 39 C 4 0 IP D 09 N 03 LA IP S 0 6 N 0 3L A N T C V C C V IN P G N D B O O T U G A T E P H A S E LG A T E R T 9 6 1 91 8 7 5 6 24 L 2 V IN 1 µ F 0. 1 µ F 1 0 B T X _ 1 2V 4 .7 µ F 1 2 0 0µ F 2. 2 3. 3 n F 1 N 4 1 4 8 N C 3 4. 7µ F 4. 7 µ F Q 5 Q 6 Q 7 Q 8 V C O R E 2 4 R 3 6 R 3 7 C 21 C 22 C 2 3 C 2 4 C 25 C 26 C 2 7 IP D 09 N 03 LA IP S 0 6 N 0 3L A V C C P W M P G N D B O O T U G A T E P H A S E LG A T E R T 9 6 1 91 8 7 5 6 24 B T X _ 1 2 V 1 µ F 0. 1µ F 1 0 V IN B T X _ 1 2V 4 .7 µ F 1 2 0 0µ F 2. 2 3. 3 n F 1 N 4 1 4 8 N C 3 4. 7µ F 4. 7 µ F Q 1 Q 2 Q 3 Q 4 IP D 0 9 N 0 3 L A R 34 R 3 5 C 14 C 15 C 16 C 17 C 18 C 19 C 2 0 IP S 0 6N 0 3L A

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RT8802A 4 DS8802A-09 March 2012www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Functional Pin Description VTT/EN (Pin 1) The pin is defined as the chip enable, and the VTT is applied for internal VID pull high power and power sequence monitoring. VR_Ready (Pin 2) Power good open-drain output. FBRTN (Pin 3) Feedback return pin. VID DAC and error amplifier reference for remote sensing of the output voltage. FB (Pin 4) Inverting input pin of the internal error amplifier. COMP (Pin 5) Output pin of the error amplifier and input pin of the PWM comparator. SS (Pin 6) Connect this SS pin to GND with a capacitor to set the soft-start time interval. QRSEL (Pin 7) Quick response mode select pin. When QRSEL = GND and quick response is triggered during heavy load to light load transient, 2 channels will turn on simultaneously to prevent VOUT undershoot. When QRSEL = NC and quick response is triggered, all channels will turn on simultaneously to prevent VOUT undershoot. VR_FAN (Pin 8) The pin is defined to signal VR thermal information for external VR thermal dissipation scheme triggering. VR_HOT (Pin 9) The pin is defined to signal VR thermal information for external VR thermal dissipation scheme triggering. TSEN (Pin 10) Temperature detect pin for VR_HOT and VR_FAN. IOUT (Pin 11) Output current indication pin. The current through IOUT pin is proportional to the total output current. DVD (Pin 12) Programmable power UVLO detection input. Trip threshold is 1V at VDVD rising. RT (Pin 13) The pin is defined to set internal switching operation frequency. Connect this pin to GND with a resistor RRT to set the frequency FSW. OFS (Pin 14) The pin is defined for load line offset setting. ADJ (Pin 15) Current sense output for active droop adjusting. Connect a resistor from this pin to GND to set the load droop. TCOC (Pin 16) Input pin for setting thermally compensated over current trigger point. Voltage on the pin is compared with VADJ. If VADJ > VTCOC then OCP is triggered. IMAX (Pin 17) The pin is defined to set threshold of over current. ISN1 (Pin 18) Current sense negative input pin for channel 1 current sensing. ISN24 (Pin 19) Current sense negative input pins for channel 2 and channel 4 current sensing. ISN35 (Pin 20) Current sense negative input pins for channel 3 and channel 5 current sensing. 3500R e 4.463F RT SW 9 + =

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RT8802A 5 DS8802A-09 March 2012 www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Function Block Diagram ISP1 (Pin 25), ISP2 (Pin 24), ISP3 (Pin 23), ISP4 (Pin 22), ISP5 (Pin 21) Current sense positive input pins for individual converter channel current sensing. PWM1 (Pin 26), PWM2 (Pin 27), PWM3 (Pin 28), PWM4 (Pin 29), PWM5 (Pin 30) PWM outputs for each driven channel. Connect these pins to the PWM input of the MOSFET driver. For systems which using 2/3/4 channels, pull PWM 3/4/5 pins up to high. VDD (Pin 31) IC power supply. Connect this pin to a 5V supply. VID7 (Pin 32), VID6 (Pin 33), VID5 (Pin 34), VID4 (Pin 35), VID3 (Pin 36), VID2 (Pin 37), VID1 (Pin 38), VID0 (Pin 39), VID_SEL (40) DAC voltage identification inputs for VRD10.x / VRD11 / K8 / K8_M2. These pins are internally pulled up to VTT. GND [Exposed pad (41)] The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. VIDSEL VID [7] Table VTT X VR11 GND X VR10.x VDD NC K8 VDD GND K8_M2 Oscillator & Ramp Generator Sample & Hold PWM1 PWM2 PWM3 Droop Tune & Hi-I Detection Current Processing SUM/N & OCP Detection DAC VID4 VID2 VID1 VID0 VID5 VID3 VR_FAN FBRTN VR_Ready TSEN GND Soft Start & PGOOD - + + - ISN35 ISP1 ISP2 ISP3 Pulse Width Modulator & Output Buffer PWM4 Mux ISP4 MuxTemperature Processing Power On Reset SS FB EA CSA COMP ADJ VID_SEL Clamp ISP5 PWM5 IMAX VID6 VID7 OFS VR_HOT RT DVDVTT/ENVDD IOUT Mux ISN1 ISN24 + - TCOC

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RT8802A 6 DS8802A-09 March 2012www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Table 1. Output Voltage Program (VRD10.x + VID6) Pin Name VID4 VID3 VID2 VID1 VID0 VID5 VID6 Nominal Output Voltage DACOUT 0 1 0 1 0 1 1 1.60000V 0 1 0 1 0 1 0 1.59375V 0 1 0 1 1 0 1 1.58750V 0 1 0 1 1 0 0 1.58125V 0 1 0 1 1 1 1 1.57500V 0 1 0 1 1 1 0 1.56875V 0 1 1 0 0 0 1 1.56250V 0 1 1 0 0 0 0 1.55625V 0 1 1 0 0 1 1 1.55000V 0 1 1 0 0 1 0 1.54375V 0 1 1 0 1 0 1 1.53750V 0 1 1 0 1 0 0 1.53125V 0 1 1 0 1 1 1 1.52500V 0 1 1 0 1 1 0 1.51875V 0 1 1 1 0 0 1 1.51250V 0 1 1 1 0 0 0 1.50625V 0 1 1 1 0 1 1 1.50000V 0 1 1 1 0 1 0 1.49375V 0 1 1 1 1 0 1 1.48750V 0 1 1 1 1 0 0 1.48125V 0 1 1 1 1 1 1 1.47500V 0 1 1 1 1 1 0 1.46875V 1 0 0 0 0 0 1 1.46250V 1 0 0 0 0 0 0 1.45625V 1 0 0 0 0 1 1 1.45000V 1 0 0 0 0 1 0 1.44375V 1 0 0 0 1 0 1 1.43750V 1 0 0 0 1 0 0 1.43125V 1 0 0 0 1 1 1 1.42500V 1 0 0 0 1 1 0 1.41875V 1 0 0 1 0 0 1 1.41250V 1 0 0 1 0 0 0 1.40625V 1 0 0 1 0 1 1 1.40000V 1 0 0 1 0 1 0 1.39375V 1 0 0 1 1 0 1 1.38750V 1 0 0 1 1 0 0 1.38125V 1 0 0 1 1 1 1 1.37500V 1 0 0 1 1 1 0 1.36875V 1 0 1 0 0 0 1 1.36250V

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RT8802A 7 DS8802A-09 March 2012 www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Pin Name VID4 VID3 VID2 VID1 VID0 VID5 VID6 Nominal Output Voltage DACOUT 1 0 1 0 0 0 0 1.35625V 1 0 1 0 0 1 1 1.35000V 1 0 1 0 0 1 0 1.34375V 1 0 1 0 1 0 1 1.33750V 1 0 1 0 1 0 0 1.33125V 1 0 1 0 1 1 1 1.32500V 1 0 1 0 1 1 0 1.31875V 1 0 1 1 0 0 1 1.31250V 1 0 1 1 0 0 0 1.30625V 1 0 1 1 0 1 1 1.30000V 1 0 1 1 0 1 0 1.29375V 1 0 1 1 1 0 1 1.28750V 1 0 1 1 1 0 0 1.28125V 1 0 1 1 1 1 1 1.27500V 1 0 1 1 1 1 0 1.26875V 1 1 0 0 0 0 1 1.26250V 1 1 0 0 0 0 0 1.25625V 1 1 0 0 0 1 1 1.25000V 1 1 0 0 0 1 0 1.24375V 1 1 0 0 1 0 1 1.23750V 1 1 0 0 1 0 0 1.23125V 1 1 0 0 1 1 1 1.22500V 1 1 0 0 1 1 0 1.21875V 1 1 0 1 0 0 1 1.21250V 1 1 0 1 0 0 0 1.20625V 1 1 0 1 0 1 1 1.20000V 1 1 0 1 0 1 0 1.19375V 1 1 0 1 1 0 1 1.18750V 1 1 0 1 1 0 0 1.18125V 1 1 0 1 1 1 1 1.17500V 1 1 0 1 1 1 0 1.16875V 1 1 1 0 0 0 1 1.16250V 1 1 1 0 0 0 0 1,15625V 1 1 1 0 0 1 1 1.15000V 1 1 1 0 0 1 0 1.14375V 1 1 1 0 1 0 1 1.13750V 1 1 1 0 1 0 0 1.13125V 1 1 1 0 1 1 1 1.12500V 1 1 1 0 1 1 0 1.11875V Table 1. Output Voltage Program (VRD10.x + VID6)

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RT8802A 8 DS8802A-09 March 2012www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Pin Name VID4 VID3 VID2 VID1 VID0 VID5 VID6 Nominal Output Voltage DACOUT 1 1 1 1 0 0 1 1.11250V 1 1 1 1 0 0 0 1.10625V 1 1 1 1 0 1 1 1.10000V 1 1 1 1 0 1 0 1.09375V 1 1 1 1 1 0 1 OFF 1 1 1 1 1 0 0 OFF 1 1 1 1 1 1 1 OFF 1 1 1 1 1 1 0 OFF 0 0 0 0 0 0 1 1.08750V 0 0 0 0 0 0 0 1.08125V 0 0 0 0 0 1 1 1.07500V 0 0 0 0 0 1 0 1.06875V 0 0 0 0 1 0 1 1.06250V 0 0 0 0 1 0 0 1.05625V 0 0 0 0 1 1 1 1.05000V 0 0 0 0 1 1 0 1.04375V 0 0 0 1 0 0 1 1.03750V 0 0 0 1 0 0 0 1.03125V 0 0 0 1 0 1 1 1.02500V 0 0 0 1 0 1 0 1.01875V 0 0 0 1 1 0 1 1.01250V 0 0 0 1 1 0 0 1.00625V 0 0 0 1 1 1 1 1.00000V 0 0 0 1 1 1 0 0.99375V 0 0 1 0 0 0 1 0.98750V 0 0 1 0 0 0 0 0.98125V 0 0 1 0 0 1 1 0.97500V 0 0 1 0 0 1 0 0.96875V 0 0 1 0 1 0 1 0.96250V 0 0 1 0 1 0 0 0.95625V 0 0 1 0 1 1 1 0.95000V 0 0 1 0 1 1 0 0.94375V 0 0 1 1 0 0 1 0.93750V 0 0 1 1 0 0 0 0.93125V 0 0 1 1 0 1 1 0.92500V 0 0 1 1 0 1 0 0.91875V 0 0 1 1 1 0 1 0.91250V 0 0 1 1 1 0 0 0.90625V 0 0 1 1 1 1 1 0.90000V Table 1. Output Voltage Program (VRD10.x + VID6)

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RT8802A 9 DS8802A-09 March 2012 www.richtek.com ©Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. All brandname or trademark belong to their owner respectively. Pin Name VID4 VID3 VID2 VID1 VID0 VID5 VID6 Nominal Output Voltage DACOUT 0 0 1 1 1 1 0 0.89375V 0 1 0 0 0 0 1 0.88750V 0 1 0 0 0 0 0 0.88125V 0 1 0 0 0 1 1 0.87500V 0 1 0 0 0 1 0 0.86875V 0 1 0 0 1 0 1 0.86250V 0 1 0 0 1 0 0 0.85625V 0 1 0 0 1 1 1 0.85000V 0 1 0 0 1 1 0 0.84375V 0 1 0 1 0 0 1 0.83750V 0 1 0 1 0 0 0 0.83125V Table 1. Output Voltage Program (VRD10.x + VID6)

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