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PDF ACE719E Data sheet ( Hoja de datos )
| Número de pieza | ACE719E | |
| Descripción | Synchronous Step-Up Converter | |
| Fabricantes | ACE Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ACE719E (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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ACE719E
3W, 0.85V Startup Voltage, Synchronous Step-Up Converter
with Real-Shutdown and Short-Circuit Protection
Description
The ACE719E is a high efficiency synchronous step-up converter that can provide up to 3W of power to
a boosted output from a low voltage source. Unlike most step-up converter, not only it starts up at a very
low input voltage as low as 0.85V, it also incorporates circuits that disconnect the input from output,
during shutdown, short-circuit, output current overloading, or other events when output is higher than
the input. This eliminates the need for an external MOSFET and its control circuitry to disconnect the input
from output, and provides robust output overload protection.
The ACE719E starts up from a voltage as low as 0.85V making it ideal for applications with single-cell or
two-cell alkaline, NiCd, and NiMh batteries. A switching frequency of 2MHz minimizes solution footprint by
allowing the use of tiny and low profile inductors and ceramic capacitors. An internal synchronous
MOSFET provides highest efficiency and with a current mode control that is internally compensated,
external parts count is reduced to minimal.
Features
Output Disconnect
Short-circuit Protection
3W Output Power
Output to Input Reversed Current Protection
0.85V Low Start-up Voltage
VIN range from 0.6V to 4.5V
Up to 96% Efficiency
40μA No load IQ and light load PFM Mode
Internal Synchronous Rectifier
Current Mode control
Logic Control Shutdown and Thermal shutdown
DFN2x2-6 Package
Application
USB OTG for MIDs, Smartphones
Mobile back-up Battery Chargers
Alkaline, NiCd, and NiMh batteries applications
USB powered devices
VER 1.2 1
1 page  
ACE719E
3W, 0.85V Startup Voltage, Synchronous Step-Up Converter
with Real-Shutdown and Short-Circuit Protection
Typical Characteristics
(Typical values are at TA = 25℃ unless otherwise specified.)
Efficiency Vs lOUT
Efficiency Vs lOUT
Efficiency Vs lOUT
lOUT(A)
Efficiency Vs VIN
lOUT(A)
VOUT Vs VIN
lOUT(A)
Maximum lOUT Vs vin
VIN(V)
VOUT Vs lOUT
VIN(V)
No Load la Vs VIN
VIN(V)
Frequency Vs VIN
lOUT(A)
VIN(V)
VIN(V)
VER 1.2 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ACE719E.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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