SGM3206
SGM3206 is Unregulated 60mA Charge Pump Voltage Inverter manufactured by SG Micro.
Preliminary Datasheet for Engineering Sample
SGM3206 Unregulated 60m A Charge Pump Voltage Inverter
GENERAL DESCRIPTION
The SGM3206 generates an unregulated negative output voltage from an input voltage ranging from 1.4V to 5.5V. The device is typically supplied by a pre-regulated supply rail of 5V or 3.3V. Due to its wide input voltage range, two or three Ni Cd, Ni MH, or alkaline battery cells, as well as one Li-ion cell can also power them.
Only three external capacitors are required to build a plete DC/DC charge pump inverter. Assembled in a small package, the plete converter can be built on a 50mm2 board area. Additional board area and ponent count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.
The SGM3206 can deliver a maximum output current of 60m A with a typical conversion efficiency of greater than 90% over a wide output current range. The fixed switching frequency is 50k Hz.
Features
- Inverts Input Supply Voltage
- Up to 60m A Output Current
- Input Voltage Range from 1.4V to 5.5V
- Quiescent Current: 120μA
- Integrated Active Schottky Diode for Start-Up into
Load
- -40℃ to +85℃ Operating Temperature Range
- Available in Green SOT-23-5 Package
APPLICATIONS
LCD Bias Ga As Bias for RF Power Amps Sensor Supply in Portable Instruments Bipolar Amplifier Supply
The SGM3206 is available in SOT-23-5 package. It operates over an ambient temperature range of -40℃ to +85℃.
TYPICAL APPLICATION
CFLY 3.3μF
INPUT 1.4V to 5.5V
CIN 3.3μF
3 CFLY-
5 CFLY+
2 IN
SGM3206 OUT 1
GND 4
SG Micro Corp .sg-micro.
OUTPUT -1.4V to -5.5V, 60m A MAX COUT 3.3μF
April 10,...
