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LT1528CQTR, LT1528CQTRPBF, LT1529

Table of contents:
Info of LT1528CQTR
Info of LT1528CQTRPBF
Info of LT1529

LT1528CQTR, LT1528CQTRPBF, LT1529 Selling Leads, Datasheet

MFG:LT Package Cooled:SO-263 D/C:513

LT1528CQTR, LT1528CQTRPBF, LT1529 Picture

LT1528CQTR, LT1528CQTRPBF, LT1529 Datasheet download

Five Points

Part Number: LT1528CQTR

MFG: LT

Package Cooled: SO-263

D/C: 513

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LT1529 General Description

The LT^®1529/LT1529-3.3/LT1529-5 are 3A low dropout regulators with micropower quiescent current and shut-down. The devices are capable of supplying 3A of output current with a dropout voltage of 0.6V. Designed for use in battery-powered systems, the low quiescent current,50µA operating and 16µA in shutdown, make them an ideal choice. The quiescent current is well controlled; it does not rise in dropout as it does with many other low dropout PNP regulators.

Other features of the LT1529 /LT1529-3.3/LT1529-5 in-clude the ability to operate with small output capacitors.They are stable with only 3.3µF on the output while most older devices require between 10µF and 100µF for stabil-ity. Small ceramic capacitors can be used, enhancing manufacturabiltiy. Also the input may be connected to voltages lower than the output voltage, including negative voltages, without reverse current flow from output to input. This makes the LT1529/LT1529-3.3/LT1529-5 ideal for backup power situations where the output is held high and the input is at ground or reversed. Under these conditions, only 16µA will flow from the OUTPUT pin to ground. The devices are available in 5-lead TO-220 and 5-lead DD packages.

LT1529 Maximum Ratings

Input Voltage ...................................................... ±15V*
OUTPUT Pin Reverse Current .......................................... 10mA
SENSE Pin Current .................................................... 10mA
ADJ Pin Current ...................................................... 10mA
SHDN Pin Input Voltage (Note 2) .............................. 6.5V, 0.6V
SHDN Pin Input Current (Note 2) ...................................... 5mA

Output Short-Circuit Duration ......................... Indefinite
Storage Temperature Range ....................... 65 to 150
Operating Junction Temperature Range
Commercial ...................................... 0 to 125
Industrial ................................... 45 to 125
Lead Temperature (Soldering, 10 sec) ..................... 300

LT1529 Features

Dropout Voltage: 0.6V at I_OUT = 3A
Output Current: 3A
Quiescent Current: 50µA
No Protection Diodes Needed
Adjustable Output from 3.8V to 14V
3.3V and 5V Fixed Output Voltages
Controlled Quiescent Current in Dropout
Shutdown I_Q = 16µA
Stable with 3.3µF Output Capacitor
Reverse Battery Protection
No Reverse Current
Thermal Limiting

LT1529 Typical Application

High Efficiency Regulator
Regulator for Battery-Powered Systems
Post Regulator for Switching Supplies
5V to 3.3V Logic Regulator

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