Diodes AP2004 User Manual
Ap2004, Features, General description
AP2004
PWM BUCK CONTROLLER
AP2004 Rev. 3
1 of 8
FEBRUARY 2009
©
Diodes Incorporated
Lead-free
•
PWM Buck Control Circuitry
•
Operating voltage can be up to 27V
•
Under voltage Lockout (UVLO) Protection
•
Short Circuit Protection (SCP)
• Soft-start
circuit
•
Variable Oscillator Frequency -- 300Khz Max
•
1.25V voltage reference Output
•
8-pin SOP package
•
SOP-8L: Available in “Green” Molding Compound
(No Br, Sb)
•
Lead Free Finish/ RoHS Compliant (Note 1)
The AP2004 integrates Pulse-Width-Modulation (PWM) control
circuit into a single chip, mainly designs for power-supply
regulator. All the functions include an on-chip 1.25V reference
output, an error amplifier, an adjustable oscillator, a soft-start,
UVLO, SCP circuitry, and a push-pull output circuit. Switching
frequency is adjustable by trimming CT. During low VCC situation,
the UVLO makes sure that the outputs are off until the internal
circuit operates normally.
• Backlight
inverter
• LCD
Monitor
• CDROM,
XDSL
Product
•
DC/DC converters in computers, etc.
AP 2004 S X - 13
Package
Packing
Lead Free
13 : Tape & Reel
G : Green
S : SOP-8L
L : Lead Free
Device
Package
Code
Packaging
(Note 2)
13” Tape and Reel
Quantity
Part Number Suffix
AP2004SL-13 S
SOP-8L
2500/Tape
&
Reel
-13
AP2004SG-13 S
SOP-8L
2500/Tape
&
Reel
-13
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
Features
General Description
Applications
Ordering Information