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AAT1346A

Advanced Analog Technology
Part Number AAT1346A
Manufacturer Advanced Analog Technology
Description 2A 15V Step-Down DC-DC Converter
Published Apr 7, 2015
Detailed Description Advanced Analog Technology, Inc. June 2008 AAT1346A/B/C Product information presented is for internal use within AAT ...
Datasheet PDF File AAT1346A PDF File

AAT1346A
AAT1346A

Overview
Advanced Analog Technology, Inc.
June 2008 AAT1346A/B/C Product information presented is for internal use within AAT Inc.
only.
Details are subject to change without notice 2A 15V Step-Down DC-DC Converter FEATURES Buck PWM with Internal PMOS 4.
5V to 15.
0V Input Voltage Range Max.
2A Output Current Under-Voltage Lockout (UVLO) Protection Internal Short Circuit and Thermal Protection Internal Soft-Start Fixed Switching Frequency (380kHz / 47kHz) 2 µA Shutdown Current SOP- 8 Package PIN CONFIGURATION GENERAL DESCRIPTION The AAT1346A/B/C is a 2A 15V step-down converter, which provides an integrated one-channel PWM solution for the power supply of DC-DC system.
It offers system engineers the flexibility to tailor-make the power supply circuitry for specific applications.
The buck PWM contains enable control signal, error amplifier, PWM comparator, output driver, under-voltage protection, oscillator, short circuit protection and voltage reference circuit.
The AAT1346A/B/C contains one buck current mode PWM with internal PMOS.
In addition, a digital soft-start is also included to prevent inrush current at startup.
AAT1346A/B/C comes with a fixed 380kHz oscillator, however, when the feedback voltage is lower than 0.
7V, the switching frequency changes to 47kHz and returns to 380kHz after the short-circuit is released.
TYPICAL APPLICATION Power In VDD EO SW VOUT ENC IN ENC GND – – – Advanced Analog Technology, Inc.
– Version 1.
00 Page 1 of 12 Advanced Analog Technology, Inc.
June 2008 AAT1346A/B/C ORDERING INFORMATION DEVICE TYPE PART NUMBER AAT1346A AAT1346A-S-T PACKAGE PACKING S:SOP8 T: Tape and reel TEMP.
RANGE 40 C to +85 C MARKING MARKING DESCRIPTION AAT1346A Device Type XXXXXX Lot no.
(6~9Digits) AAT1346B AAT1346B-S-T S:SOP8 T: Tape and reel 40 C to +85 C AAT1346B Device Type XXXXXX Lot no.
(6~9Digits) AAT1346C AAT1346C-S-T S:SOP8 T: Tape and reel NOTE: All AAT products are lead free and halogen free.
40 C to +85 C AAT1346C Device Type...


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