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Numéro de référence | AAT1346A | ||
Description | 2A 15V Step-Down DC-DC Converter | ||
Fabricant | Advanced Analog Technology | ||
Logo | |||
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
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Version 1.00
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Pages | Pages 12 | ||
Télécharger | [ AAT1346A ] |
No | Description détaillée | Fabricant |
AAT1346A | 2A 15V Step-Down DC-DC Converter | Advanced Analog Technology |
AAT1346B | 2A 15V Step-Down DC-DC Converter | Advanced Analog Technology |
AAT1346C | 2A 15V Step-Down DC-DC Converter | Advanced Analog Technology |
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