LMR14010A (ACTIVE)

4-V to 40-V, 1-A Step-Down Converter With High Efficiency Eco-Mode

4-V to 40-V, 1-A Step-Down Converter With High Efficiency Eco-Mode - LMR14010A
 

Description

The LMR14010A is a PWM DC-to-DC buck (step-down) regulator. With a wide input range from 4 V to 40 V, it is suitable for a wide range of applications from industrial to automotive. An ultra-low 1-µA shutdown current prolongs battery life. Operating frequency is fixed at 0.7 MHz, allowing the use of small external components while minimizing output ripple voltage. Soft-start and compensation circuits are implemented internally, limiting the number of external components.

The LMR14010A is optimized for up to 1-A load current. It has a 0.765-V nominal feedback voltage.

The device has built-in protection features such as pulse-by-pulse current limit, thermal sensing and shutdown due to excessive power dissipation. The LMR14010A is available in a low profile TSOT-6L package (2.9 mm × 1.6 mm × 0.85 mm).

Features

  • Input Voltage Range: 4 V to 40 V with Transient Protection to 45 V
  • 0.7-MHz Switching Frequency
  • Ultra-High Efficiency at Light Load with Eco-mode™
  • Low Dropout Operation
  • Output Current up to 1 A
  • Precision Enable Input
  • Overcurrent Protection
  • Internal Compensation
  • Internal Soft-Start
  • Small Overall Solution Size (TSOT-6L Package)
  • Create a Custom Design Using the LMR14010A With the WEBENCH® Power Designer

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Package Group
LMR14010A LMR14006 LMR14020 LMR14030 LMR14050 TPS560430
4    4    4    4    4    4   
40    40    40    40    40    36   
0.8    0.8    1    1    1    1   
30    30    36    36    36    24   
1    0.6    2    3.5    5    0.6   
1    1    1    1    1    1   
550    1100    200    200    200    1100   
850    2100    2500    2500    2500    2100   
0.03    0.028    0.04    0.04    0.04    0.08   
Enable
Light Load Efficiency
Over Current Protection
Pre-Bias Start-Up
UVLO Fixed   
Enable
Light Load Efficiency
Pre-Bias Start-Up
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Tracking
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Tracking
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Tracking
UVLO Adjustable   
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Over Current Protection
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Adjustable   
Current Mode    Current Mode    Current Mode    Current Mode    Current Mode    Current Mode   
96    97    98    98    98    98   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
SOT-23-THIN    SOT-23-THIN    SO PowerPAD    SO PowerPAD    SO PowerPAD    SOT-23   
New! Interactive Design
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WEBENCH® Designer LMR14010A

  Min   Max Range
Vin  V 4.0 to 40.0V
Vout  V 0.77 to 38.4V
Iout  A ≤ 1A
Ambient Temp  °C -4 to 15°C


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