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PDF ACE711E Data sheet ( Hoja de datos )
| Número de pieza | ACE711E | |
| Descripción | Step-Up DC/DC Regulator 20V | |
| Fabricantes | ACE Technology | |
| Logotipo |  |
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ACE711E
2A, Step-Up DC/DC Regulator 20V
Description
The ACE711E is a high efficiency step-up converter with an internally integrated 20V power MOSEFT.
It runs with an optimal 1MHz frequency that enables the use of small external components while still
providing the best efficiency. It can drive up to 2A output current. The incorporated true PWM-Diming
feature through EN pin enable one further digitally program the output voltage lower. For maximum
protection, the ACE711E has an OVP protection feature that prevents the output voltage exceeding the
maximum rating of the ACE711E and the output cap during open conditions.
Features
• Up to 95% Efficiency
• 20V OVP protection
• True PWM Brightness Control
• 200mV Feedback Voltage
• 2.5A current limit
• SOT23-6 Package
Application
• Portable power bank
• Powering 3G module
• Large LCD display backlight driving up to 90 LEDs
• Satellite STB
• Bluetooth Speaker
• Large TFT screen bias
• Other application which needs high voltage and high current generation
Absolute Maximum Ratings
(Note: Exceeding these limits may damage the device. Exposure to absolute maximum rating conditions for long periods may
affect device reliability.)
Parameter
Value
SW Voltage
-0.3V~25V
All Other PIN Voltages
-0.3V~6.5V
SW to ground current
Internally limited
Operating Temperature Range
-40℃~85℃
Storage Temperature Range
-55℃~150℃
Thermal Resistance
SOT-23-6
ΘJA ΘJC
130 50 ℃/W
VER 1.2 1
1 page  
ACE711E
2A, Step-Up DC/DC Regulator 20V
Switching Waveform
VIN=3.2V, VOUT=20V, LOUT=280mA
Switching Waveform
VIN=5.0V, VOUT=20V, IOUT=280mA
FUNCTIONAL DECRIPTIONS
The ACE711E is a high efficiency, high output voltage boost converter in a small package size. The
device is ideal for delivering 1-2A current when boosting up the output voltage. The device integrates
20V/2.5A switch FET and operates in pulse width modulation (PWM) with 1MHz fixed switching
frequency. For operation details, please check the block diagram at the “Block Diagram” chapter. The duty
cycle of the converter is set by the error amplifier output and the current signal applied to the PWM control
comparator. The feedback loop regulates the FB pin to a low reference voltage (200mV typical), reducing
the power dissipation in the current sense resistor.
VER 1.2 5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet ACE711E.PDF ] | |
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