LT4430ES6#PBF TSOT-23-6 Driver ICs RoHS IC OPTOCOUPLER GATE DRVR SOT23-6

The LT®4430 drives the opto-coupler that crosses the galvanic barrier in an isolated power supply. The IC contains
a precision-trimmed reference, a high bandwidth error
amplifier, an inverting gain of 6 stage to drive the optocoupler and unique overshoot control circuitry.
The LT4430’s 600mV reference provides ±0.75% initial
accuracy and ±1.25% tolerance over temperature. A high
bandwidth 9MHz error amplifier permits simple frequency
compensation and negligible phase shift at typical loop
crossover frequencies. The opto-coupler driver provides
10mA of output current and is short-circuit protected.
A unique overshoot control function prevents output
overshoot on start-up and short-circuit recovery with a
single capacitor.
The LT4430 is available in the low profile 6-lead TSOT-23
package

Features：
* 600mV Reference (1.25% Over Temperature) n Wide Input Supply Range: 3V to 20V
* Overshoot Control Function Prevents Output
Overshoot on Start-Up and Short-Circuit Recovery
* High Bandwidth Error Amplifier Permits Simple Loop Frequency Compensation
* Ground-Referenced Opto-Coupler Drive
* 10mA Opto-Coupler Drive with Current Limiting n Low Profile (1mm) ThinSOTTM Package

Applications
n 48V Input Isolated DC/DC Converters
n Isolated Telecommunication Power Systems
n Distributed Power Step-Down Converters
n Offline Isolated Power Supplies
n Industrial Control Systems
n Automotive and Heavy Equipment

Absolute Maximum Ratings
Supply Voltage
VIN ........................................................................20V
FB Voltage.................................................... –0.3V to 6V
OPTO Short-Circuit Duration............................ Indefinite
Operating Junction Temperature Range (Note 2)
E-, I-Grades ....................................... –40°C to 125°C
H-Grade ............................................. –40°C to 150°C
MP-Grade .......................................... –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)...................300°C

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