LM2936

ACTIVE

50-mA, 60-V, low-IQ, low-dropout voltage regulator with reverse voltage protection

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TPS7A43 ACTIVE 50-mA, 85-V, ultra-low IQ, dual low-dropout voltage regulator with power good and precision enable Alternative option with wider VIN range and lower IQ.

Product details

Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 60 Vin (min) (V) 5.5 Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (µVrms) 500 Iq (typ) (mA) 0.015 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Reverse voltage protection Accuracy (%) 3 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 200 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 60 Vin (min) (V) 5.5 Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (µVrms) 500 Iq (typ) (mA) 0.015 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Reverse voltage protection Accuracy (%) 3 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 200 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-223 (DCY) 4 45.5 mm² 6.5 x 7 TO-252 (NDP) 3 65.2078 mm² 6.58 x 9.91 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • LM2936 Operating VIN range of 5.5 V to 40 V
  • LM2936HV Operating VIN range of 5.5 V to 60 V
  • Ultra Low Quiescent Current (IQ ≤ 15 µA for
    IOUT = 100 µA)
  • Fixed 3-V, 3.3-V or 5-V with 50-mA Output
  • ±2% Initial Output Tolerance
  • ±3% Output Tolerance Over Line, Load, and Temperature
  • Dropout Voltage Typically 200 mV at IOUT = 50 mA
  • –24-V Input Voltage Protection
  • –50-V Input Transient Protection
  • Internal Short Circuit Current Limit
  • Internal Thermal Shutdown Protection
  • Shutdown Pin Available with LM2936BM Package
  • LM2936 Operating VIN range of 5.5 V to 40 V
  • LM2936HV Operating VIN range of 5.5 V to 60 V
  • Ultra Low Quiescent Current (IQ ≤ 15 µA for
    IOUT = 100 µA)
  • Fixed 3-V, 3.3-V or 5-V with 50-mA Output
  • ±2% Initial Output Tolerance
  • ±3% Output Tolerance Over Line, Load, and Temperature
  • Dropout Voltage Typically 200 mV at IOUT = 50 mA
  • –24-V Input Voltage Protection
  • –50-V Input Transient Protection
  • Internal Short Circuit Current Limit
  • Internal Thermal Shutdown Protection
  • Shutdown Pin Available with LM2936BM Package

The LM2936 ultra-low quiescent current regulator features low dropout voltage and low current in the standby mode. With less than 15-μA quiescent current at a 100-μA load, the LM2936 is ideally suited for automotive and other battery operated systems. The LM2936 retains all of the features that are common to low dropout regulators including a low dropout PNP pass device, short circuit protection, reverse battery protection, and thermal shutdown. The LM2936 has a 40-V maximum operating voltage limit, a −40°C to 125°C operating temperature range, and ±3% output voltage tolerance over the entire output current, input voltage, and temperature range. The LM2936 is available in a TO-92 through-hole package, as well as SOIC-8, VSSOP, SOT–223, and TO-252 surface mount packages.

The LM2936 ultra-low quiescent current regulator features low dropout voltage and low current in the standby mode. With less than 15-μA quiescent current at a 100-μA load, the LM2936 is ideally suited for automotive and other battery operated systems. The LM2936 retains all of the features that are common to low dropout regulators including a low dropout PNP pass device, short circuit protection, reverse battery protection, and thermal shutdown. The LM2936 has a 40-V maximum operating voltage limit, a −40°C to 125°C operating temperature range, and ±3% output voltage tolerance over the entire output current, input voltage, and temperature range. The LM2936 is available in a TO-92 through-hole package, as well as SOIC-8, VSSOP, SOT–223, and TO-252 surface mount packages.

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Technical documentation

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Type Title Date
* Data sheet LM2936 Ultra-Low Quiescent Current LDO Voltage Regulator datasheet (Rev. O) PDF | HTML 24 Dec 2014
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
Technical article Decrease power consumption with an LDO PDF | HTML 19 Jul 2016
User guide LM5072 5V out 25W IEEE 802.3at Compliant POE+ PD Power Ref Design User Guide 27 Jan 2012
Application note TO-92 Packing Options / Ordering Instructions (Rev. A) 23 Jun 2010

Design & development

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Evaluation board

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Evaluation board

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User guide: PDF
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Simulation model

LM2936 TINA-TI Transient Spice Model

SNOM468.ZIP (21 KB) - TINA-TI Spice Model
Simulation model

LM2936-3P0 TINA-TI Transient Reference Design

SNOM467.TSC (54 KB) - TINA-TI Reference Design
Simulation model

LM2936-3P3 TINA-TI Transient Reference Design

SNOM465.TSC (53 KB) - TINA-TI Reference Design
Simulation model

LM2936-5P0 TINA-TI Transient Reference Design

SNOM466.TSC (54 KB) - TINA-TI Reference Design
Simulation model

LM2936Q PSpice Model (Rev. A)

SNVM347A.ZIP (64 KB) - PSpice Model
Simulation model

LM2936Q Unencrypted PSpice Model

SNOM623.ZIP (3 KB) - PSpice Model
Reference designs

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The TIDA-00896 reference design provides an easy to implement, low standby current and isolated AC to DC rectification. The AC input voltage is regulated to a ripple free 3.3V using LM2936 a low dropout (LDO) linear regulator. The 3.3V voltage rail is ideal to power microcontrollers which are (...)
Design guide: PDF
Schematic: PDF
Reference designs

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Test report: PDF
Schematic: PDF
Reference designs

PMP10624 — 9 to 42Vin 5V/9V/12V @ 3A Synchronous 4-Switch Buck-Boost Converter Reference Design

PMP10624 is a synchronous 4-switch buck-boost converter which utilizes the LM5175 controller for USB type C applications. The output voltage can be selected for 5V, 9V or 12V at 3A using jumpers or open drain control switches. The LM5175 average current loop sets a maximum output current of 4A.
Test report: PDF
Schematic: PDF
Reference designs

PMP10698 — 9 to 42Vin 5V/12V/20V @ 5A Synchronous 4-Switch Buck-Boost Converter Reference Design

PMP10698 is a synchronous 4-switch buck-boost converter which utilizes the LM5175 controller for USB type C applications. The output voltage can be selected for 5V, 12V or 20V at 5A using jumpers or open drain control switches. The LM5175 average current loop sets a maximum output current of 6.25A.
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00236 — Low Side 0.5A 8ch Digital Output Module for PLC

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Reference designs

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Test report: PDF
Schematic: PDF
Package Pins Download
SOIC (D) 8 View options
SOT-223 (DCY) 4 View options
TO-252 (NDP) 3 View options
TO-92 (LP) 3 View options
VSSOP (DGK) 8 View options

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