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L4941BDT-TR

hotL4941BDT-TR

L4941BDT-TR

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Part Number L4941BDT-TR
Manufacturer STMicroelectronics
Description IC REG LINEAR 5V 1A DPAK
Datasheet L4941BDT-TR Datasheet
Package TO-252-3, DPak (2 Leads + Tab), SC-63
In Stock 28,182 piece(s)
Unit Price $ 0.4270 *
Lead Time Can Ship Immediately
Estimated Delivery Time Jan 30 - Feb 4 (Choose Expedited Shipping)
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Part Number # L4941BDT-TR (PMIC - Voltage Regulators - Linear) is manufactured by STMicroelectronics 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.

For L4941BDT-TR specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add L4941BDT-TR with quantity into BOM. Heisener.com does NOT require any registration to request a quote of L4941BDT-TR.

L4941BDT-TR Specifications

ManufacturerSTMicroelectronics
CategoryIntegrated Circuits (ICs) - PMIC - Voltage Regulators - Linear
Datasheet L4941BDT-TRDatasheet
PackageTO-252-3, DPak (2 Leads + Tab), SC-63
Series-
Output ConfigurationPositive
Output TypeFixed
Number of Regulators1
Voltage - Input (Max)16V
Voltage - Output (Min/Fixed)5V
Voltage - Output (Max)-
Voltage Dropout (Max)0.7V @ 1A
Current - Output1A
Current - Quiescent (Iq)-
Current - Supply (Max)8mA ~ 40mA
PSRR68dB (120Hz)
Control Features-
Protection FeaturesOver Temperature, Reverse Polarity, Short Circuit
Operating Temperature-40°C ~ 150°C
Mounting TypeSurface Mount
Package / CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Supplier Device PackageDPAK

L4941BDT-TR Datasheet

Page 1

Page 2

September 2006 Rev. 5 1/17 17 L4941 Very low drop 1A regulator Feature summary ■ Low dropout voltage (450mV typ. at 1A) ■ Very low quiescent current ■ Thermal shutdown ■ Short circuit protection ■ Reverse polarity protection Description The L4941 is a three terminal 5V positive regulators available in TO-220 and DPAK packages, making it useful in a wide range of industrial and consumer applications. Thanks to its very low input/output voltage drop, these devices are particularly suitable for battery powered equipments, reducing consumption and prolonging battery life. It employs internal current limiting, antisaturation circuit, thermal shut-down and safe area protection. DPAKTO-220 www.st.com Order code Part number Package L4941BV TO-220 L4941BDT-TR DPAK

Page 3

L4941 2/17 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Page 4

L4941 Block diagram 3/17 1 Block diagram Figure 1. Block diagram

Page 5

Pin configuration L4941 4/17 2 Pin configuration Figure 2. Pin connections (top view) DPAKTO-220

Page 6

L4941 Maximum ratings 5/17 3 Maximum ratings Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Table 1. Absolute maximum ratings Symbol Parameter Value Unit VI Forward input voltage 30 V VIR Reverse input voltage (RO=100Ω) -15 V IO Output current Internally Limited mA PD Power dissipation Internally Limited mW Tstg Storage temperature range -40 to +150 °C Top Operating junction temperature range -40 to +150 °C Table 2. Thermal Data Symbol Parameter TO-220 DPAK Unit RthJC Thermal resistance junction-case 3 8 °C/W RthJA Thermal resistance junction-ambient 50 100 °C/W

Page 7

Test circuits L4941 6/17 4 Test circuits Figure 3. DC Parameters Figure 4. Load rejection Figure 5. Ripple rejection

Page 8

L4941 Electrical characteristics 7/17 5 Electrical characteristics Table 3. Electrical characteristics (refer to test circuit, VI=7V, CI = 0.1µF, CO = 22µF, TJ = 25°C, unless otherwise specified.) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage IO = 5mA to 1A, VI = 6 to 14V 4.8 5 5.2 V VI Input voltage IO = 5 mA 16 V ∆VO Line regulation VI = 6 to 16V, IO = 5 mA 5 20 mV ∆VO Load regulation IO = 5mA to 1A 8 20 mV IO = 0.5A to 1A 5 15 mV Iq Quiescent current IO = 5 mA, VI = 6V 4 8 mA IO = 1A, VI = 6V 20 40 mA ∆Iq Quiescent current change IO = 5 mA, VI = 6 to 14V 3 mA IO = 1A, VI = 6 to 14V -10 mA Vd Dropout voltage IO = 0.5A 250 450 mV IO = 1A 450 700 mV ∆VO/∆T Output voltage drift 0.6 mV/°C SVR Supply voltage rejection f = 120Hz, IO = 1A 58 68 dB Isc Short circuit current VI = 14V 1.6 2.0 A VI = 6V 1.8 2.2 ZO Output impedance f = 1KHz, IO = 0.5A 30 mΩ eN Output noise voltage B = 100Hz to 100KHz 30 µV/VO

Page 9

Typical application L4941 8/17 6 Typical application Figure 6. Dropout voltage vs output current Figure 7. Dropout voltage vs temperature Figure 8. Output voltage vs temperature Figure 9. Quiescent current vs temperature Figure 10. Quiescent current vs input voltage Figure 11. Quiescent current vs output current

Page 10

L4941 Typical application 9/17 Figure 12. Short circuit current vs temperature Figure 13. Peak output current vs input/output differential voltage Figure 14. Low voltage behavior Figure 15. Supply voltage rejection vs frequency Figure 16. Supply voltage rejection vs output current Figure 17. Load dump characteristics

L4941BDT-TR Reviews

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Oliv*****elsen

December 26, 2020

Worked as advertised and good price. Can you imagine buying these at local store it would cost way to much.

Moham*****berson

December 21, 2020

Great price and condition, Very speedy delivery, Very pleased thank you

Jace*****kins

December 7, 2020

Your prices are low and your website is customer-use friendly.

Rand*****Patla

December 7, 2020

They work great exactly what I needed.

Walk*****ohns

December 4, 2020

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

Loga*****iver

November 23, 2020

Item sent as described. Showed up quickly. Worked as it said and would recommend again.

Bray*****Jordan

November 20, 2020

Heisener has been to my No.1 supplier for years. Very quick and easy when knowing what you are looking for.

L4941BDT-TR Guarantees

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We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

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