LT1529CQ-3.3

Series: -
Regulator Topology: Positive Fixed
Number of Regulators: 1
Operating Temperature: 0°C ~ 125°C
Mounting Type: Surface Mount
Voltage - Output: 3.3V
Packaging: Tube
Package / Case: TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Voltage - Input: Up to 15V
Current - Limit (Min): 3.2A
Manufacturer: Linear Technology
Current - Output: 3A
Voltage - Dropout (Typical): 0.6V @ 3A
Supplier Device Package: D2PAK-5


Features:

` Dropout Voltage: 0.6V at IOUT = 3A
` Output Current: 3A
` Quiescent Current: 50A
` 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 = 16mA
` Stable with 3.3mF Output Capacitor
`Reverse Battery Protection
` No Reverse Current
` Thermal Limiting


Application

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


Specifications

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°C to 150°C
Operating Junction Temperature Range
Commercial .......................................... 0°C to 125°C
Industrial ....................................... 45°C to 125°C
Lead Temperature (Soldering, 10 sec).............. 300°C
*For applications requiring input voltage ratings greater than 15V, contact the factory.


Description

The LT^®1529/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, 50mA operating and 16mA 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 include the ability to operate with small output capacitors. They are stable with only 3.3mF on the output while most older devices require between 10mF and 100mF 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 16mA will flow from the OUTPUT pin to ground. The devices are available in 5-lead TO-220 and 5-lead DD packages.

Parameters:

Technical/Catalog Information	LT1529CQ-3.3
Vendor	Linear Technology
Category	Integrated Circuits (ICs)
Regulator Type	Single Output
Package / Case	D²Pak, SMD-220, TO-263 (5 leads + tab)
Packaging	Tube
Regulator Topology	Positive Fixed
Current - Output	3A
Voltage - Output	3.3V
Operating Temperature	0°C ~ 125°C
Voltage - Input	4.3 ~ 15 V
Number of Regulators	1
Current - Limit (Min)	5A
Current Short Circuit (Isc)	-
Drawing Number	161; 05-08-1461; Q; 5
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	LT1529CQ 3 3 LT1529CQ33