Rev.1.2.0
1
Tiny SOT23-6, 2A, 1MHz LED Driver DC/DC
ACP2727
General Description
The ACP2727 is an inductor-based DC/DC boost
converter designed to drive LED arrays. 2A switching
current allows ACP2727 to be used in different 7' to 10'
LCD panel backlights (3*13 LED arrays typically).
A
cons
tant frequency 1MHz PWM control scheme is
employed in this IC, which means tiny external com-
ponents can be used. Specifically, 1mm tall 15µH
inductor and 10µF output capacitor for the typical
application is sufficient.
T
he
over output voltage protection is equipped in
ACP2727, which protects the IC under open load condi-
tion.
The ACP2727 includes soft-start, current limit and
OTSD to protect the circuit.
T
he A
CP2727 is available in standard SOT-23-6.
Features
VIN Operating Range : 3V to 30V
Low 200mV Feedback Voltage
Cycle by Cycle Current Limit: 2A
20KHz to 1MHz Wide PWM Dimming
Internal Soft Start
Over Voltage Protection
Over Temperature Protection
Small SOT23-6 Packages
RoHS Compliant and Halogen Free
Application
7’-10’ LED Panel Backlight
Portable DVD/TV
GPS
Digital Photo Frame
Ordering and Marking Information
Standard Part NO. VFB Package Packing Min. Quantity RoHS
ACP2727-200CTRAL 200mV SOT23-6 Tape&Reel 3000PCS Pb Free
Remark: for marking information,please see sample or contact our sales for more detail infomation.
Typical Application Circuit
GND
VIN
V
OUT
EN
SW
FB
OVP
4
6
5
3
2
1
L1
15μH
C2
10μF
C1
10μF
R1
0.75Ω
V
IN
13Strings
total
OFF ON
Circuit for driving 39 WLEDs
ACP2727
PWM
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