L6712 2 Phase interleaved DC/DC Controller

The device implements a dual-phase step-down controller with a 180 phase-shift between each phase optimized for high current DC/DC applications.

Output voltage can be programmed through the integrated DAC from 0.900V to 3.300V; programming the "111" code, an external reference from 0.800V to 3.300V is used for the regulation.

Programmable Remote Sense Amplifier avoids use of external resistor divider and recovers losses along distribution line.

The device assures a fast protection against load over current and Over / Under voltage. An internal crowbar is provided turning on the low side mosfet if Over-voltage is detected.

Output current is limited working in Constant Current mode: when Under Voltage is detected, the device resets, restarting operation.

技术特性

2 PHASE OPERATION WITH SYNCHRONOUS RECTIFIER CONTROL
ULTRA FAST LOAD TRANSIENT RESPONSE
INTEGRATED HIGH CURRENT GATE DRIVERS: UP TO 2A GATE CURRENT
3 BIT PROGRAMMABLE OUTPUT FROM 0.900V TO 3.300V OR WITH EXTERNAL REF.
±0.9% OUTPUT VOLTAGE ACCURACY
3mA CAPABLE AVAILABLE REFERENCE
INTEGRATED PROGRAMMABLE REMOTE SENSE AMPLIFIER
PROGRAMMABLE DROOP EFFECT
10% ACTIVE CURRENT SHARING ACCURACY
DIGITAL 2048 STEP SOFT-START
CROWBAR LATCHED OVERVOLTAGE PROT.
NON-LATCHED UNDERVOLTAGE PROT.
OVERCURRENT PROTECTION REALIZED USING THE LOWER MOSFET'S RdsON OR A SENSE RESISTOR
OSCILLATOR EXTERNALLY ADJUSTABLE AND INTERNALLY FIXED AT 150kHZ
POWER GOOD OUTPUT AND INHIBIT FUNCTION
PACKAGES: SO-28 & VFQFPN-36

功能框图

L6712 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
L6712QTR	NRND		1000	VFQFPN 36 6x6x1-0	Tape And Reel
L6712Q	NRND		1000	VFQFPN 36 6x6x1-0	Tube
L6712AQ	NRND		1000	VFQFPN 36 6x6x1-0	Tube
L6712AQTR	NRND		1000	VFQFPN 36 6x6x1-0	Tape And Reel

DATASHEET

描述	版本	大小
L6712 : DS3647: TWO-PHASE INTERLAVED DC/DC CONTROLLER	3	620KB

BOARDS AND TOOLS

型号	描述
STEVAL-ISA025V1	Step-down DC-DC converter at 3.3 Vout/20 A and switching frequency of 400 kHz evaluation board based on L6730