AP1513
PWM CONTROL 2A STEP-DOWN CONVERTER
Features
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Input voltage: 3.6V to 18V
Output voltage: 0.8V to V
CC
Duty ratio: 0% to 100% PWM control
Oscillation frequency: 300KHz typ.
Soft-start, Current limit, Enable function
Thermal Shutdown function
Built-in internal SW P-channel MOS
SOP-8L: Available in “Green” Molding Compound
Lead Free Finish/RoHS Compliant for Lead Free and
“Green” products (Note 1)
General Description
AP1513 consists of step-down switching regulator with PWM control.
These devices include a reference voltage source, oscillation circuit,
error amplifier, and internal PMOS.
AP1513 provides low-ripple power, high efficiency, and excellent
transient characteristics. The PWM control circuit is able to vary the
duty ratio linearly from 0 up to 100%. This converter also contains
an error amplifier circuit as well as a soft-start circuit that prevents
overshoot at startup. An enable function, an over current protect
function and a short circuit protect function are built inside, and
when OCP or SCP happens, the operation frequency will be
reduced from 300KHz to 30KHz. Also, an internal compensation
block is built in to minimum external component count.
With the addition of an internal P-channel Power MOS, a coil,
capacitors, and a diode connected externally, these ICs can
function as step-down switching regulators. They serve as ideal
power supply units for portable devices when coupled with the
SOP–8L mini-package, providing such outstanding features as
low current consumption. Since this converter can accommodate
an input voltage up to 18V, it is also suitable for the operation via
an AC adapter.
Applications
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PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
Microprocessor core supply
Networking power supply
Ordering Information
AP1513 X X X
Package
S : SOP-8L
Lead-Free
L : Lead-Free
G : Green
Packing
- U : Tube
-13 : Taping
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex Notes 5 and 7.
Device
(Note 2)
AP1513S
Note:
Tube/Bulk
Package
Packaging Quantity Part Number
Code
Suffix
S
SOP-8L
100
-U
13” Tape and Reel
Quantity
Part Number
Suffix
2500/Tape & Reel
-13
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
AP1513 Rev. 1
1 of 8
www.diodes.com
JANUARY 2007
©
Diodes Incorporated
DIODES [ DIODES INCORPORATED ]
