Micro Power Step-up DC-DC Converter - ACE Technology
Description
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ACE707A
Technology Description
Micro Power Step-up DC-DC Converter
The ACE707A are Pulse Frequency Modulation (PFM) DC/DC converters.
These two devices are functionally equivalent except the switching current limit.
The ACE707A is for lower power systems with 100mA current limit.
The ACE707A feature a wide input voltage.
The operation voltage is ranged from 1V to 12V.
A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current.
They also feature low quiescent current, switching current limiting, low temperature coefficient, etc.
Fewer tiny external components are required in the applications to save space and lower cost.
Furthermore, to ease its use in different systems, a disable terminal is designed to turn on or turn off the chip.
The ACE707A are available in SOT-23-5 package.
Features
• • • • • • • • • • • •
Low Quiescent Current In Active Mode (Not Switching): 17μA Typical ,In Shutdown Mode: < 1μA Low Operating VIN 1.
0V Typical for ACE707A Low VCESAT Switch 70mV Typical at 70mA for ACE707A High Output Voltage: up to 34V Fixed Off-Time Control Switching Current Limiting 100mA Typical for ACE707A Operating Temperature Range: -40℃ to 85℃
Application
MP3, MP4 Battery Power Supply System LCD/OLED Bias Supply Handheld Device Portable Communication Device
VER 1.
2
1
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ACE707A
Technology Absolute Maximum Ratings
Parameter Input voltage SW Voltage FB Voltage
Micro Power Step-up DC-DC Converter
Symbol VIN VSW VFB
Max 15 36 VIN 15 265 150
Unit V V V V ℃/W ℃
SHDN Pin Voltage VSHDN Thermal Resistance (Junction to Ambient, no Heat sink) RθJA Operating Junction Temperature...
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