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LMR14010A
SLUSD87 – MARCH 2018
LM...
Product Folder
Order Now
Technical Documents
Tools & Software
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LMR14010A
SLUSD87 – MARCH 2018
LMR14010A 4-V to 40-V, 1-A Step-Down Converter With High Efficiency Eco-mode™
1 Features
1 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
2 Applications
Smart Meters Appliances Elevators and Escalators Cameras
Simplified Schematic
VIN Cin
VIN SHDN
LMR14010A
CB SW
GND
FB
Cboot L1
D1 R1
Cout
R2
Copyright © 2018, Texas Instruments Incorporated
3 Description
The LMR14010A is a PWM DC-to-DC buck (stepdown)
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 pu...