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LMR51420XFDDCR
SIMPLE SWITCHER® power converter 4.5V-to-36V, 2A, synchronous buck with 40µA IQ

In supply

Brand: TI

Model: LMR51420XFDDCR

Anticipation Inventory: SIMPLE SWITCHER® power converter 4.5V-to-36V, 2A, synchronous buck with 40µA IQ

Description:

SIMPLE SWITCHER® power converter 4.5V-to-36V, 2A, synchronous buck with 40µA IQ

description of products:

The LMR51420 is a wide-VIN, easy-to-use SIMPLE SWITCHER power converter synchronous buck converter capable of driving up to 2-A load current. With a wide input range of 4.5 V to 36 V, the device is suitable for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR51420 operates at 500-kHz and 1.1-MHz switching frequency to support use of relatively small inductors for an optimized solution size. The device has a PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR51420 is available in a 6-pin SOT-23 package.

product feature:

  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • 4.5-V to 36-V input voltage range
    • 2-A continuous output current
    • 70-ns minimum switching on time
    • 500-kHz and 1.1-MHz fixed switching frequency options
    • –40°C to 150°C junction temperature range
    • 98% maximum duty cycle
    • Start-up with prebiased output
    • Internal short circuit protection with hiccup mode
    • ±1.5% tolerance voltage reference
    • Precision enable
  • Small solution size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23 package
  • Pin-to-pin compatible with the TPS54202 and TPS54302
  • PFM and forced PWM (FPWM) options available
  • Create a custom design using the LMR51420 with the WEBENCH Power Designer

Vin(Min)(V)4.5

Vin(Max)(V)36

输出电压(Min)(V)0.6

输出电压(Max)(V)34.2

输出电流(Max)(A)2

Iq(规格)(毫安)0.04

开关频率(Min)(kHz)500

开关频率(Max)(kHz)1100

特性Enable,ForcedPWM,LightLoadEfficiency,OverCurrentProtection,SynchronousRectification

等级产品样本

调节输出(#)1

控制模块currentmode

占空比(Max)(%)98

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