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PDF G5723 Data sheet ( Hoja de datos )
| Número de pieza | G5723 | |
| Descripción | Synchronous Buck Converter | |
| Fabricantes | Global Mixed-mode Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de G5723 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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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 archi-
tecture. 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
1 page  
Global Mixed-mode Technology Inc.
Package Information
10
e
AA
E1
b
E
CL
1
DETAIL “A”
0.076 C
SEATING PLANE
e
b
D
A2 A
A1
GAUGE PLANE
R1
R
θ1 L
θ2
θ3
G5723
SYMBOL
A
A1
A2
b
b1
c
c1
D
E1
e
E
L
θ1
θ2
θ3
R
R1
JEDEC
SECTION A-A
MSOP-10 Package
MIN.
-----
0.05
0.81
0.15
0.15
0.13
0.13
2.90
2.90
0.445
0°
0.09
0.09
DIMENSION IN MM
NOM.
-----
-----
0.86
-----
0.20
-----
0.15
3.00
3.00
0.50 BSC
4.90 BSC
0.55
-----
12 REF
12 REF
-----
-----
MAX.
1.10
0.15
0.91
0.30
0.25
0.23
0.18
3.10
3.10
0.648
6°
MIN.
-----
0.002
0.032
0.006
0.006
0.005
0.005
0.114
0.114
0.0175
0°
----- 0.004
----- 0.004
MO-187BA
DIMENSION IN INCH
NOM.
-----
-----
0.034
-----
0.008
0.006
0.118
0.118
0.020 BSC
0.193 BSC
0.0217
-----
12 REF
12 REF
-----
-----
MAX.
0.043
0.006
0.036
0.012
0.010
0.009
0.007
0.122
0.122
0.0255
6°
-----
-----
Taping Specification
PACKAGE
MSOP-10
Q’TY/REEL
2,500 ea
Feed Direction
Typical M SOP Package Orientation
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
Ver: 0.1
Jan 15, 2008
TEL: 886-3-5788833
http://www.gmt.com.tw
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet G5723.PDF ] | |
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