APW7078
Single PWM Switching Controller
Features
General Description
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2.3 to 5.5V Input Voltage Range
The APW7078 is a single PWM, step-up DC-DC
controller with low operating voltage application
integrating soft-start and short circuit detection
function.And the oscillatorswitching frequency onchip
can be operated by terminating OSC pin to connect
capacitor and resistor for adjustable operating
frequency. Soft-start is adjusted withexternal capacitor,
which sets the input current ramp. Besides, the
external compensationFB pin will apply the flexibility in
the dynamic loop status, which allow using small, low
equivalent series resistance (ESR) ceramic output
capacitors.
Adjustable Frequency: Maximum 1MHZ
Incorporates Soft-start Function
Built-in Short-circuit Detection Circuit (SCP)
Low Operating Current: Maximum to 1mA
Low Shutdown Current: Maximum to 1mA
Package: MSOP-8, TSSOP-8
Under Voltage Lockout
Lead Free Available (RoHS Compliant)
Applications
Pinouts
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LCDDisplay Power Source
Camcorders VCRs, MP3 and Digital Still
Camera
FB
INV
SCP
VDD
CTL
1
2
3
4
8
7
OSC
GND
OUT
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Hand-held and Communication Instruments
PDAs
6
5
APW7078
Ordering and Marking Information
Package Code
X : MSOP - 8
Temp. Range
I : -40 to 85 C
Handling Code
TU : Tube
APW7078
O : TSSOP-8
Lead Free Code
Handling Code
°
TR : Tape & Reel
Temp. Range
Package Code
Lead Free Code
L : Lead Free Device Blank : Original Device
XXXXX - Date Code
APW7078
XXX
APW7078 X :
APW7078 O :
XX
APW7078
XXXXX
XXXXX - Date Code
Notes: ANPEC lead-free products contain molding compounds/die attach m aterials and 100% matte in plate
termination finish;which are fullycompliant with RoHSand compatible with both SnPb and lead-free soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
ANPEC reserves the right to make changesto improve reliability or manufacturability without notice, and advise
customers to obtain the latest versionof relevant informationto verify before placingorders.
Copyright ã ANPECElectronicsCorp.
1
www.anpec.com.tw
Rev. A.3 - Nov., 2005