AP2014 Datasheet, PDF (1/13 Pages) Anachip Corp – Synchronous PWM Controller

AP2014/A
SYNCHRONOUS PWM DC-DC BUCK CONTROLLER
Features
• Synchronous PWM DC-DC Controller in an 8-Pin
Package
• Operating with single 5V or 12V supply voltage
• Internal 200KHz Oscillator (400KHz for AP2014A)
• Soft-Start Function
• Fixed Frequency Voltage Mode
• 500mA Peak Output Drive Capability
• Output protected when control FET is shorted
• SOP-8L Pb-Free and Green (under development)
packages
General Description
The AP2014 PWM DC-DC controller IC is designed to provide a
low cost synchronous Buck regulator for on-board DC to DC
converter applications. With the migration of today’s ASIC
products requiring low supply voltages such as 1.8V and lower,
together with currents in excess of 3A, traditional linear regulators
are simply too lossy to be used when input supply is 5V or even
in some cases with 3.3V input supply. The AP2014 together with
dual N-channel MOSFETs such as AF9410, provide a low cost
solution for such applications. This device features an internal
200KHz oscillator (400KHz for "A" version), under-voltage
lockout for both Vcc and Vc supplies, an external programmable
soft-start function as well as output under-voltage detection that
latches off the device when an output short is detected.
Applications
• Graphic Card
• Hard Disk Drive
• DDR memory source sink Vtt application
• Low cost on-board DC to DC such as 5V to 3.3V, 2.5V or 1.8V
Pin Assignments
(Top View)
FB ¹
8 SS
Vcc 2 _{AP2014/A 7} Comp
LDrv 3
6 _Vc
GND ₄
5 ^HDrv
SOP-8L
DS30883 Rev. 1 - 0
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