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LMR14006XDDCT

Buck Regulator

The LMR14006XDDCT is a buck regulator from Texas Instruments. View the full LMR14006XDDCT datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

LMR14006XDDCT shares its datasheet with LMR14006, whose page lists every part number it covers.

Official LMR14006XDDCT datasheet (PDF) — the source this page was extracted from.

Manufacturer

Texas Instruments

Category

Switching Regulators (Buck)

LMR14006XDDCT Key Specifications

ParameterValue
Operating input voltage4 V to 40 V
Shutdown supply current1 μA (typ) at V EN = 0V
Operating quiescent current (non-switching)28 μA (typ) at no load, V IN = 12V
Feedback voltage0.765 V (typ)
High-side MOSFET On-resistance600 mΩ (typ) at V IN = 12V, CB to SW = 5.8V
Current limit1200 mA (typ) at V IN = 12V, T J = 25°C
Switching frequency (LMR14006X)1100 kHz (typ)
Switching frequency (LMR14006Y)2100 kHz (typ)
Thermal shutdown threshold170 °C (typ)

LMR14006XDDCT Overview

Part: Texas Instruments LMR14006

Type: Buck Regulator

Description: A 4–40 V input, 600 mA buck regulator with ultra-low 28 μA standby current in sleep mode, 1 μA shutdown current, and fixed switching frequencies of 1.1 MHz or 2.1 MHz.

Operating Conditions:

  • Supply voltage: 4–40 V
  • Operating temperature: -40 to 125 °C (junction)
  • Output current: up to 600 mA
  • Switching frequency: 1.1 MHz (X version) or 2.1 MHz (Y version)

Absolute Maximum Ratings:

  • Max supply voltage: 45 V (VIN to GND)
  • Max continuous current: 1200 mA (current limit)
  • Max junction/storage temperature: 150 °C (junction operation), 165 °C (storage)

Key Specs:

  • Operating input voltage: 4 V to 40 V
  • Shutdown supply current: 1 μA (typ) at V EN = 0V
  • Operating quiescent current (non-switching): 28 μA (typ) at no load, V IN = 12V
  • Feedback voltage: 0.765 V (typ)
  • High-side MOSFET On-resistance: 600 mΩ (typ) at V IN = 12V, CB to SW = 5.8V
  • Current limit: 1200 mA (typ) at V IN = 12V, T J = 25°C
  • Switching frequency (LMR14006X): 1100 kHz (typ)
  • Switching frequency (LMR14006Y): 2100 kHz (typ)
  • Thermal shutdown threshold: 170 °C (typ)

Features:

  • Ultra Low 28 μA Standby Current in Sleep Mode
  • Input Voltage Range 4 V to 40 V
  • 1 μA Shutdown Current
  • High Duty Cycle Operation Supported
  • Output Current up to 600 mA
  • 1.1 MHz and 2.1 MHz Switching Frequency
  • Internal Compensation
  • High Voltage Enable Input
  • Internal Soft Start
  • Over Current Protection
  • Over Temperature Protection
  • Small Overall Solution Size (TSOT-6L Package)

Applications:

  • Industrial Distributed Power Systems
  • Automotive
  • Battery Powered Equipment
  • Portable Handheld Instruments
  • Portable Media Players

Package:

  • TSOT-6L (2.9mm × 1.6 mm)

LMR14006XDDCT Features

  • 1 · Ultra Low 28 μA Standby Current in Sleep Mode
  • Input Voltage Range 4 V to 40 V
  • 1 μA Shutdown Current
  • High Duty Cycle Operation Supported
  • Output Current up to 600 mA
  • 1.1 MHz and 2.1 MHz Switching Frequency
  • Internal Compensation
  • High Voltage Enable Input
  • Internal Soft Start
  • Over Current Protection
  • Over Temperature Protection
  • Small Overall Solution Size (TSOT-6L Package)

LMR14006XDDCT Applications

  • Industrial Distributed Power Systems
  • Automotive
  • Battery Powered Equipment
  • Portable Handheld Instruments
  • Portable Media Players

LMR14006XDDCT Pin Configuration

CB

1

2

3

4

5

6

LMR14006

GND

FB

SW

VIN

SHDN

PIN 1 ID

DDC Package TSOP-6L Top View

LMR14006XDDCT Electrical Characteristics

VIN = /SHDN = 12V, TA = 25°C, unless otherwise specified.

SYMBOLPARAMETERCONDITIONSMINTYPMAXUNIT
VIN (Input Power Supply)VIN (Input Power Supply)VIN (Input Power Supply)VIN (Input Power Supply)VIN (Input Power Supply)VIN (Input Power Supply)VIN (Input Power Supply)
V INOperating input voltage440V
I SHDNShutdown supply currentV EN = 0V13μA
I QOperating quiescent current (non- switching)no load, V IN = 12V28μA
UVLOUndervoltage lockout thresholdsRising threshold4V
UVLOUndervoltage lockout thresholdsFalling threshold3
SHDNSHDNSHDNSHDNSHDNSHDNSHDN
V SHDN_ThreRising SHDN Threshold Voltage1.051.251.38V
I SHDN_PINInput currentSHDN = 2.3V-4.2μA
I SHDN_PINInput currentSHDN = 0.9V-1
I SHDN_HYSHysteresis current-3μA
HIGH-SIDE MOSFETHIGH-SIDE MOSFETHIGH-SIDE MOSFETHIGH-SIDE MOSFETHIGH-SIDE MOSFETHIGH-SIDE MOSFETHIGH-SIDE MOSFET
R DS_ONOn-resistanceV IN = 12V, CB to SW = 5.8V600m Ω
VOLTAGE REFERENCE (FB PIN)VOLTAGE REFERENCE (FB PIN)VOLTAGE REFERENCE (FB PIN)VOLTAGE REFERENCE (FB PIN)VOLTAGE REFERENCE (FB PIN)VOLTAGE REFERENCE (FB PIN)VOLTAGE REFERENCE (FB PIN)
V FBFeedback voltage0.7470.7650.782V
CURRENT LIMITCURRENT LIMITCURRENT LIMITCURRENT LIMITCURRENT LIMITCURRENT LIMITCURRENT LIMIT
I LIMITCurrent limitV IN = 12V, T J = 25°C1200mA
THERMAL PERFORMANCETHERMAL PERFORMANCETHERMAL PERFORMANCETHERMAL PERFORMANCETHERMAL PERFORMANCETHERMAL PERFORMANCETHERMAL PERFORMANCE
T SHDNThermal shutdown threshold170°C
T HYSHysteresis10°C

LMR14006XDDCT Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) (1)

PARAMETERMINMAXUNIT
Input VoltagesV IN to GND-0.345V
Input VoltagesSHDN to GND-0.345V
Input VoltagesFB to GND-0.37V
Input VoltagesCB to SW-0.37V
Output VoltagesSW to GND-145V
Output VoltagesSW to GND less than 30ns transients-245V
T J Operation Junction Temperature-40150°C

LMR14006XDDCT Recommended Operating Conditions

Over operating free-air temperature range (unless otherwise noted)

PARAMETERMINMAXUNIT
Buck RegulatorV IN440V
Buck RegulatorCB446V
Buck RegulatorCB to SW-0.36V
Buck RegulatorSW-140
Buck RegulatorFB05.5V
ControlSHDN040V
TemperatureOperating junction temperature range, T J-40125°C

LMR14006XDDCT Thermal Information

THERMAL METRIC (1)TSOT (6 PINS)UNIT
R θ JAJunction-to-ambient thermal resistance102°C/W
R θ JCtopJunction-to-case (top) thermal resistance36.9°C/W
R θ JBJunction-to board characterization parameter28.4°C/W

LMR14006XDDCT Typical Application

Figure 9. LMR14006 Design Example with 2.1 MHz Switching Frequency

Below are the recommended typical output voltage inductor/capacitor combinations for optimized total solution size.

P/NVout(V)R1(k Ω )R2(k Ω )L( μ H)Cout( μ F)
LMR14006 Y554.9(1%)10(1%)3.322
LMR14006 Y12147(1%)10(1%)3.310

Figure 10. Application Circuit, 12 V Output

Other Switching Regulators (Buck)

  • TPS54302 – Texas Instruments, Synchronous Step-Down Converter
  • MAX20730 – Analog Devices, Synchronous Switching Regulator
  • TLV62568 – Texas Instruments, Synchronous Buck Converter
  • LM2596 – Texas Instruments, Step-Down Voltage Regulator
  • TPS562200 – Texas Instruments, Synchronous Buck Converter
  • AP63203WU – Diodes Incorporated, Synchronous Buck Converter
  • TPS54202 – Texas Instruments, Synchronous Buck Converter
  • AP63357DV-7 – Diodes Incorporated, Synchronous Buck Converter

All Switching Regulators (Buck) datasheetsAll Texas Instruments datasheets (2,418)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

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