Low

LT1619ES8#PBF - 

PWM Controller Current Mode, 18V-1.9V supply, 300 kHz, 500mV/200mA out, SOIC-8

LT1619ES8#PBF - PWM Controller Current Mode, 18V-1.9V supply, 300 kHz, 500mV/200mA out, SOIC-8

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LT1619ES8#PBF
Order Code:
1663452
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT1619ES8#PBF is a low voltage current mode PWM Controller for implementing current mode DC/DC converters with minimum external parts. The LT1619 operates with input voltages ranging from 1.9 to 18V and is suitable for a variety of battery-powered and distributed DC/DC converters. The internal rail-to-rail N-channel MOSFET driver operates either from the input in the non-bootstrapped mode or from the output in bootstrapped operation. The driver is designed to drive a low side power transistor in boost, SEPIC, flyback and other topologies. Converter efficiency is improved at heavy loads with a 53mV current sense voltage and at light load with Burst Mode®® operation. The operating frequency is internally set at 300kHz. The oscillator can also be synchronized externally up to 500kHz. No load quiescent current is 140µA and shutdown current is 15µA.
  • 300kHz Fixed frequency current mode control
  • 1A Rail-to-rail N-Channel MOSFET driver
  • Low 53mV current limit threshold voltage improves efficiency
  • Implements boost, SEPIC and Flyback converters requiring low side power transistors
  • Internal current sense amplifier with leading edge blanking
  • Up to 500kHz external synchronization
  • Burst Mode® operation for high efficiency at light load
  • 140µA Quiescent current
  • 15µA Shutdown current

Applications

Power Management

Product Information

:
2.5V
:
500mV
:
200mA
:
1.9V
:
18V
:
SOIC
:
8Pins
:
300kHz
:
-40°C
:
85°C
:
Each
:
-
:
-
:
Yes
:
MSL 1 - Unlimited
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