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G5723

Global Mixed-mode Technology
Part Number G5723
Manufacturer Global Mixed-mode Technology
Description Synchronous Buck Converter
Published Jan 10, 2016
Detailed Description Global Mixed-mode Technology Inc. G5723 Synchronous Buck Converter with Low-Noise LDO Regulator Features Buck Conver...
Datasheet PDF File G5723 PDF File

G5723
G5723

Overview
Global Mixed-mode Technology Inc.
G5723 Synchronous Buck Converter with Low-Noise LDO Regulator Features Buck Converter „ High Efficiency: Up to 95% „ Low Quiescent Current: Only 50µA During Op- eration „ Internal Soft Start Function „ 600mA Output Current „ 2.
5V to 6V Input Voltage Range „ 1.
2MHz Switching Frequency „ No Schottky Diode Required „ 100% Duty Cycle in Dropout Operation „ 0.
6V Reference Allows Low Output Voltages „ <1µA Shutdown Current „ Current Mode Operation for Excellent Line and Load Transient Response LDO Regulator „ Ultra Low Output Noise 30µV (rms) „ Ultra Low 55µA No-Load Supply Current „ Ultra Low Dropout 70mV @ 50mA Load „ Guarantee 300mA Output Current „ Fixed Mode: 3V „ Max.
Supply Current in Shutdown Mode < 1µA „ Stable with Low Cost Ceramic Capacitors „ Over Temperature Protected „ RoHS Compliant Applications „ Digital Still and Video Cameras „ MP3 Players „ Portable Instruments General Description The G5723 consists of a synchronous step-down DC/DC converter and a low-noise LDO regulator.
The DC/DC converter is operated on current mode architecture.
Switching frequency is set at 1.
2MHz allowing the use of small surface mount inductor and capacitor.
The internal synchronous switches increase efficiency and eliminate the need for external Schottky diode.
It is ideal for system powered by a 1-cell Li-ion battery.
Ordering Information ORDER NUMBER G5723-30P71U G5723-33P71U Note: P7: MSOP-10 1: Bonding Code U: Tape & Reel Pin Configuration MARKING G5723E G5723F VOLTAGE 3.
0V 3.
3V TEMP.
RANGE -40°C to +85°C -40°C to +85°C PACKAGE (Pb free) MSOP-10 MSOP-10 Typical Application Circuit EN1 1 AGND 2 FB1 3 AGND 4 EN2 5 G5723 MSOP-10 10 LX 9 PGND 8 IN1 7 OUT2 6 IN2 VIN 3.
3~4.
2V BATTERY CIN1 2.
2µF CIN2 1µF VOUT1 = 0.
6V • (1+ R1 R2 ) G5723 IN1 LX EN1 FB1 IN2 EN2 OUT2 AGND PGND 2.
2µH CFB* (option) R1 R2 18K 18K VOUT2 COUT2 4.
7µF VOUT1 1.
2V 600mA COUT1 10µF Ver: 0.
1 Jan 15, 2008 TEL: 886-3-5788833 http://www.
gmt.
com.
tw 1 Gl...


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