A7512 DC-DC CONVERTER Datasheet

A7512 Datasheet, PDF, Equivalent


Part Number

A7512

Description

STEP DOWN DC-DC CONVERTER

Manufacture

AiT Semiconductor

Total Page 13 Pages
Datasheet
Download A7512 Datasheet


A7512
AiT Semiconductor Inc.
www.ait-ic.com
A7512
2A, 550KHz, STEP DOWN DC-DC CONVERTER
WIDE INPUT VOLTAGE, BUILT-IN P-CHANNEL MOSFET
PRELIMINARY RELEASE
DESCRIPTION
FEATURES
The A7512 is a monolithic step-down DC to DC
Built-in 90mΩ P-Channel MOSFET
converter. The A7512 works from a 4.75V to 20V
Wide 4.75~20V input Voltage Range
input voltage range, and offers up to 2A of
Adaptive PWM/PFM Operation Mode
continuous output current in a compact SOP8
Up to 95% Efficiency
package.
Built-in Soft-Start Function
Fault Protection (Auto Recovery Mode)
The A7512 operates in voltage mode. Lower
<1 ㎂ Shutdown Current and 350 ㎂ Quiescent
quiescent current and wider operating
Current
input-voltage range are implemented by
Low Temperature-Drift Coefficient of Bandgap
high-voltage BICMOS-based technology.
Voltage
Alternative PWM/PFM control technique
Available in SOP8 & P-SOP8 Package
significantly improves the efficiency for both light
load and heavy load.
APPLICATION
Power Source for Battery-Powered Equipments.
The A7512 also integrates soft-start, over load
Distribute DC to DC Power Supply
protection and under voltage lockout protection
Pre-Regulator for Linear Regulator
etc., which minimized external components and
converter size.
TYPICAL APPLICATION
The A7512 is available in SOP8 & P-SOP8
package.
ORDERING INFORMATION
Package Type
Part Number
SOP8
P-SOP8
Note
M A7512M8R
MP A7512MP8R
R : Tape & Reel
AiT provides all Pb free products
REV0.91
-1-

A7512
AiT Semiconductor Inc.
www.ait-ic.com
A7512
2A, 550KHz, STEP DOWN DC-DC CONVERTER
WIDE INPUT VOLTAGE, BUILT-IN P-CHANNEL MOSFET
PRELIMINARY RELEASE
PIN DESCIPTION
Pin No.
1
2
3
4
5
6
7
8
Name
NC
VIN
SW
GND
FB
LDO
EN
NC
Function Description
Not connected
Power supply input pin.
Switching node. PWM output connection to inductor.
Ground
Feedback pin. It is used to program the output voltage by adjusting the ratio of the
external resistor divider from output to ground. A compensation capacitor paralleling
with the upper resistor is recommended to improve system dynamic response.
LDO output pin. A 0.1uF capacitor is recommended in order to filter the switching
noise.
Chip enable pin. High level activates the chip. Connect the pin to VIN if not used, do
not leave the pin floating.
Not connected
REV0.91
-2-


Features AiT Semiconductor Inc. www.ait-ic.com A 7512 2A, 550KHz, STEP DOWN DC-DC CONVER TER WIDE INPUT VOLTAGE, BUILT-IN P-CHAN NEL MOSFET PRELIMINARY RELEASE DESCRI PTION FEATURES The A7512 is a monolit hic step-down DC to DC Built-in 90mΩ P-Channel MOSFET converter. The A7512 works from a 4.75V to 20V Wide 4.75~20 V input Voltage Range input voltage ra nge, and offers up to 2A of Adaptive P WM/PFM Operation Mode continuous outpu t current in a compact SOP8 Up to 95% Efficiency package. Built-in Soft-Sta rt Function Fault Protection (Auto Rec overy Mode) The A7512 operates in volt age mode. Lower <1 ㎂ Shutdown Curren t and 350 ㎂ Quiescent quiescent curr ent and wider operating Current input -voltage range are implemented by Low Temperature-Drift Coefficient of Bandga p high-voltage BICMOS-based technology . Voltage Alternative PWM/PFM control technique Available in SOP8 & P-SOP8 Package significantly improves the eff iciency for both light load and heavy load. APPLICATION Power Sou.
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