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PDF IT77103 Data sheet ( Hoja de datos )
| Número de pieza | IT77103 | |
| Descripción | 5V/800mA High Efficiency Step-Down DC/DC Converter | |
| Fabricantes | M3TEK | |
| Logotipo |  |
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M3TEK
IT77103
5V/800mA High Efficiency Step-Down DC/DC Converter
Description
The IT77103 is a high efficiency step-down
DC/DC converter using a constant frequency,
current mode architecture. The device
integrates a main switch and a synchronous
rectifier for high efficiency without an external
schottky diode. Supply current during operation
is only 160µA and drops to < 1µA after
shutdown. The IT77103 can supply 800mA of
load current from 2.5V to 6.0V input voltage.
The output voltage can be regulated as low as
0.6V.
The switching frequency is internally set at
1.2MHz, allowing the use of small surface
mount inductors and capacitor. The IT77103 is
available in a low profile TSOT23_5L/
SOT23_5L package
Features
High Efficiency up to 95%
160µA Low Quiescent Current (Active Mode)
2.5V to 6.0V Input Voltage Range
800mA Output Current
Fixed Frequency Operation
Allowable 0.6V Low Output Voltage
Current Mode Operation
Internal Soft-start
Over-temperature Protection
0.1µA Shutdown Current
TSOT23_5L/ SOT23_5L Small Package
RoHS Compliant (100% Green Available)
Applications
Cellular Telephone
PDA and Smart Phone
MP3 Player
Microprocessor and DSP Core Supply
Wireless and DSL Card
Digital Still Camera
Slim-Type DVD
Portable Device
Typical Applications
Figure 1. Typical Application Circuit
Efficiency (Vin=5V)
100
90
80
70
60
50
10
Vout=3.3V
Vout=1.2V
100
Output Current (mA)
1000
Rev. 0.3.9
www.m3tekic.com
M3tekic Confidential
1
1 page | ||
| Páginas | Total 1 Páginas | |
| PDF Descargar | [ Datasheet IT77103.PDF ] | |
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