LT LT1529CT-3.3#06PBF

正15V3A

Overview

The LT1529/LT1529-3.3/LT1529-5 are 3A low dropout regulators with micropower quiescent current and shutdown. 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 LT1529CT-3.3 /LT1529-3.3/LT1529-5 include the ability to operate with small output capacitors. They are stable with 22µF on the output while most older devices require up to 100µF for stability. 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.

Features

Bulk Package
Positive Output Configuration
Fixed Output Type
1 Number of Regulators
15V Voltage - Input (Max)
3.3V Voltage - Output (Min/Fixed)
0.95V @ 3A Voltage Dropout (Max)
3A Current - Output
100 µA Current - Quiescent (Iq)
62dB (120Hz) PSRR
Enable Control Features
Over Current, Over Temperature, Reverse Polarity Protection Features
0°C ~ 125°C Operating Temperature
Through Hole Mounting Type
160 mA Current - Supply (Max)