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PDF IT77117 Data sheet ( Hoja de datos )
| Número de pieza | IT77117 | |
| Descripción | Dual Channel 5V/800mA High Efficiency Step-Down DC/DC Converter | |
| Fabricantes | M3TEK | |
| Logotipo |  |
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M3TEK
IT77117
Dual Channel 5V/800mA High Efficiency Step-Down DC/DC Converter
Description
The IT77117DF 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. The supply current during
operation is 320µA only and will drop below
1µA after shutdown. The IT77117DF 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.
Features
High Efficiency up to 95%
320µA Low Quiescent Current (Active Mode)
2.5V to 6.0V Input Voltage Range
800mA Output Current on Each Channel
Fixed Frequency Operation
Allowable 0.6V Low Output Voltage
Current Mode Operation
Internal Soft-start
Over-temperature Protection
0.1µA Shutdown Current
DFN 10L 3x3 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
100
90
80
70
60
50
10
Figure 1. Typical Application Circuit
100
90
80
70
60
50
10
Rev. 0.4.2
www.m3tekic.com
M3tekic Confidential
Efficiency (Vin=5V)
Vout=3.3V
Vout=1.2V
100
Output Current (mA)
Efficiency (Vin=3.3V)
Vout=2.5V
Vout=1.2V
100
Output Current (mA)
1000
1000
1
1 page | ||
| Páginas | Total 1 Páginas | |
| PDF Descargar | [ Datasheet IT77117.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| IT77117 | Dual Channel 5V/800mA High Efficiency Step-Down DC/DC Converter | M3TEK |
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