Preliminary Data sheet
SGM3110
GENERAL DESCRIPTION
The SGM3110 is a MicroPower switched capacitor
voltage converter that delivers a regulated output. No
external inductor is required for operation.
The SGM3110 can deliver up to 100mA to the voltage
regulated output. It features very low quiescent current
and high efficiency over a large portion of its load range,
making this device ideal for battery-powered
applications. Furthermore, the combination of few
external components and small package size keeps the
total converter board area to a minimum in
space-restricted applications.
The SGM3110 uses a pulse skipping technique to provide
a regulated output from a varying input supply. The
SGM3110 contains a thermal management circuit to
protect the device under continuous output short-circuit
conditions.
The SGM3110 has lead (Pb) free SOT23-6 package and is
rated over the -40°C to +85°C temperature range.
MicroPower
Regulated Charge Pump
FEATURES
−
Step-Up Voltage Converter
−
Input Voltage Range:
SGM3110-5.0: 2.7 to 5.0V
SGM3110-4.5: 2.7 to 4.5V
−
MicroPower Consumption: 60µA
−
Fixed 5V, 4.5V ± 4% Output
−
Peak Current 250mA for 100ms
−
High Frequency 750kHz Operation
−
Logic-Controlled Shutdown
−
Short-Circuit/Over-Temperature Protection
−
Lead (Pb) Free
SOT23-6 Package
APPLICATIONS
Cellular Phones
Digital Cameras
Handheld Electronics
LED/Display Backlight Driver
LEDs for Camera Flash
Portable Communication Devices
MP3 Players
GPS Receivers
PDAs
PIN CONFIGURATIONS（TOP VIEW）
SGM3110
3110(A)
SOT23-6
V
OUT
GND
1
2
6
5
C+
V
IN
SHDN
3
4
C-
TYPICAL APPLICATION
V
OUT
C
OUT
= 10µF
V
OUT
GND
ON/OFF
SHDN
C+
V
IN
C-
1µF
V
IN
C
IN
= 10µF
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
Apr. 2007
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
