APW7078 Datasheet, PDF (1/16 Pages) Anpec Electronics Coropration – Single PWM Switching Controller

APW7078
Single PWM Switching Controller
Features
General Description
• 2.3 to 5.5V Input Voltage Range
• 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
• LCD Display Power Source
• Camcorders VCRs, MP3 and Digital Still
Camera
• Hand-held and Communication Instruments
• PDAs
The A PW 7078 is a single P W M, s tep-up DC-DC
c ont roller wit h low operating volt age applic at ion
int egr at ing s oft-st art and short circ uit detect ion
function. And the oscillator switching frequency on chip
can be operated by terminating OSC pin to connect
c apac itor and resis t or for adjus t able operating
frequency. Soft-start is adjusted with external capacitor,
whic h s et s t he input current ramp. Bes ides, the
external compensation FB pin will apply the flexibility in
the dynamic loop status, which allow using small, low
equivalent series res istance (ES R) c eramic output
capacitors.
Pinouts
INV
1
SCP
2
VDD
3
CTL
4
8
FB
7
OSC
6
GND
5
OUT
Ordering and Marking Information
APW7078
APW7078
APW7078 X :
APW7078 O :
Lead Free Code
Handling Code
Temp. Range
Package Code
APW7078
XXX
XX
APW7078
XXXXX
Package Code
X : MSOP - 8
O : TSSOP-8
Temp. Range
I : -40 to 85 ^°C
Handling Code
TU : Tube
TR : Tape & Reel
Lead Free Code
L : Lead Free Device Blank : Original Device
XXXXX - Date Code
XXXXX - Date Code
No tes : ANPEC lea d-free produ cts co nta in mol din g comp oun ds/die attach m ate ria ls and 10 0% matte in pla te
te rmin atio n fi nish ; wh ich are full ycompl iant with Ro HS and compa tibl e wi th both SnPb an d le ad-free sold ieri ng
op era tio ns. AN PEC le ad-free produ cts me et or exceed th e l ead -free req uireme nts of IPC /JEDEC J STD -02 0C
fo r MSL classi ficati on at lea d-fre e p eak re flo w temp era ture.
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
C opyright © ANPEC Electronics C orp.
1
Rev. A.3 - Nov., 2005
www.anpec.com.tw