LM76005RNPR.B中文资料德州仪器数据手册PDF规格书

1 Features

• Functional Safety-Capable

– Documentation available to aid functional safety

system design

• Designed for rugged industrial applications

– Input transient protection up to 65 V

– Optimized for low EMI requirements

– Pin-selectable FPWM operation

– Adjustable frequency range: 200 kHz to 500

kHz

– Start up with pre-biased output voltage

– Protection features: thermal shutdown, input

undervoltage lockout, cycle-by-cycle current

limit, hiccup short-circuit protection

• Suited for scalable power supplies

– Pin compatible with:

• LM76002/3 (60 V, 2.5 A or 3.5 A)

– Output voltage: 1 V to 95% of VIN

– Synchronization to external clock

– Adjustable soft-start (6.3 ms default)

• Low power dissipation across load spectrum

– 15-μA quiescent current in regulation

– 95% efficiency at 400 kHz (12VIN, 5VOUT, 2A)

– 92% PFM efficiency at 10-mA (12VIN, 5VOUT)

– External bias option for improved efficiency

• Create a custom design using the LM76005 with

the WEBENCH® Power Designer

2 Applications

• Industrial PC and Programmable logic controllers

• Asset tracking and fleet management systems

• Personal transport vehicle: electric bike

• Video surveillance: IP network camera

• Motor drives

3 Description

The LM76005 regulator is an easy-to-use

synchronous step-down DC-DC converter capable of

driving up to 5 A (LM76005) of load current from an

input up to 60 V. Tolerance goes up to 65 V, easing

input surge protection.

The LM76005 use peak-current-mode control to

provide exceptional efficiency and output accuracy in

a small solution size. Seamless transition between

PWM and PFM modes, along with very low MOSFET

ON resistances and an external bias input, ensures

exceptional efficiency across the entire load range.

This device requires few external components and

has a pinout designed for simple PCB layout with

best-in-class EMI (CISPR22) and thermal

performance. The small solution size and feature set

of the LM76005 are designed to simplify the

implementation for a wide range of end equipment.

The LM76005 device is available in the WQFN 30-pin

leadless package with wettable flanks.