Datasheet Analog Devices LT8613 — Datenblatt

LT8613
42V, 6A Synchronous
Step-Down Regulator with
Current Sense and 3µA
Quiescent Current
DESCRIPTION FEATURES
Rail-to-Rail Current Sense Amplifier with Monitor
n Wide Input Voltage Range: 3.4V to 42V
n Ultralow Quiescent Current Burst Mode® Operation:
n 3μA I Regulating 12V to 3.3V
Q
IN
OUT
n Output Ripple < 10mV
P-P
n High Efficiency Synchronous Operation:
n 95% Efficiency at 3A, 5V
OUT from 12VIN
n 94% Efficiency at 3A, 3.3V
OUT from 12VIN
n Fast Minimum Switch-On Time: 40ns
n Low Dropout Under All Conditions: 250mV at 3A
n Allows Use of Small Inductors …

LT8613
42V, 6A Synchronous
Step-Down Regulator with
Current Sense and 3µA
Quiescent Current
Description Features Rail-to-Rail Current Sense Amplifier with Monitor
n Wide Input Voltage Range: 3.4V to 42V
n Ultralow Quiescent Current Burst Mode® Operation: 3μA IQ Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P
n High Efficiency Synchronous Operation: 95% Efficiency at 3A, 5VOUT from 12VIN 94% Efficiency at 3A, 3.3VOUT from 12VIN
n Fast Minimum Switch-On Time: 40ns
n Low Dropout Under All Conditions: 250mV at 3A
n Allows Use Of Small Inductors
n Low EMI
n Adjustable and Synchronizable: 200kHz to 2.2MHz
n Current Mode Operatio Accurate 1V Enable Pin Threshold
n Internal Compensatio Output Soft-Start and Tracking
n Small Thermally Enhanced 3mm × 6mm 28-Lead
QFN Package
n Applications Automotive and Industrial Supplies General Purpose Step-Dow CCCV Power Supplies
n The LT®8613 is a compact, high efficiency, high speed
synchronous monolithic step-down switching regulator
that consumes only 3µA of quiescent current. Top and
bottom power switches are included with all necessary …