|
|
PDF G5728 Data sheet ( Hoja de datos )
| Número de pieza | G5728 | |
| Descripción | 1MHz 1A Synchronous Step-Down Regulator | |
| Fabricantes | Global Mixed-mode Technology | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de G5728 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
|
No Preview Available !
Global Mixed-mode Technology
G5728
1MHz 1A Synchronous Step-Down Regulator
Features
High Efficiency: Up to 93%
Low Quiescent Current: Only 50µA During Op-
eration
Internal Soft Start Function
1A Output Current
2.5V to 6V Input Voltage Range
1MHz 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
Over Temperature Protected
RoHS Compliant
General Description
The G5728 is a high efficiency monolithic synchronous
buck regulator using a constant frequency, current
mode architecture. Supply current during operation is
only 50µA and drops to <1µA in shutdown. The 2.5V
to 6V input voltage range makes the G5728 ideally
suited for single Li-Ion battery-powered applications.
100% duty cycle provides low dropout operation, ex-
tending battery run time in portable systems. Switching
frequency is internally set at 1MHz, allowing the use of
small surface mount inductors and capacitors. The
internal synchronous switch increase efficiency and
eliminates the need for an external Schottky diode.
Built-in soft start function eliminates in-rush current
that could damage the system.
Applications
Cellular Telephones
Personal Information Appliances
Microprocessors and DSP Core Supplies
Wireless and DSL Modems
Digital Still and Video Cameras
MP3 Players
Portable Instruments
Ordering Information
ORDER
NUMBER
G5728TO1U
Note: TO:TSOT-23-5
1: Bonding Code
U: Tape & Reel
MARKING
5728x
OUTPUT
VOLTAGE
Adjustable
TEMP.
RANGE
-40°C~ +85°C
PACKAGE
(Green)
TSOT-23-5
Pin Configuration
Typical Application Circuit
EN 1
G5728
5 VFB
GND 2
LX 3
4 VIN
TSOT-23-5
VIN
4~6V
G5728
4
VIN
3
LX
CIN
2.2µF
CER
1 EN
VOUT
=
0.6V
×
(1+
R1
R2
)
VFB
GND
2
5
2.2µH
CFB* (option)
R1
R2 82k
18k
VOUT
3.3V
300mA
COUT
10µF
CER
Ver: 1.0
May 04, 2012
TEL: 886-3-5788833
http://www.gmt.com.tw
1
1 page  
Global Mixed-mode Technology
Typical Performance Characteristics (continued)
G5728
Feedback Volatge vs Input Voltage
1
0.8
0.6
0.4
0.2
0
2.5 3 3.5 4 4.5 5 5.5
Input Voltage VIN (V)
Feedback Volatge vs Temperature
1
0.8
0.6
0.4
0.2 VIN=5.5V
0
-40 -20
0 20 40 60
Temperature (°C)
80 100
Low Side NMOS RDS(ON) vs Temperature
0.4
0.3 VIN=3.6V
0.2
VIN=5.5V
0.1
0
-40 -20
0 20 40 60
Temperature (°C)
80 100
Minimum Footprint PCB Layout Section
TSOT-23-5
High Side PMOS RDS(ON) vs Temperature
0.5
0.4
VIN=3.6V
0.3
0.2
VIN=5.5V
0.1
0
-40 -20
0 20 40 60
Temperature (°C)
80 100
Ver: 1.0
May 04, 2012
TEL: 886-3-5788833
http://www.gmt.com.tw
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet G5728.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| G5723 | Synchronous Buck Converter | Global Mixed-mode Technology |
| G5723B | 1A Synchronous Buck Converter | Global Mixed-mode Technology |
| G5725 | 1MHz 1A Synchronous Step-Down Regulator | Global Mixed-mode Technology |
| G5728 | 1MHz 1A Synchronous Step-Down Regulator | Global Mixed-mode Technology |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |