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ADM8828ARTZ 开关稳压器
ADM8828ARTZ
ADI(亚德诺半)
: 25 mA
: Inverting
: 120 kHz
: 1.5 V to 5.5 V
相关产品
产品信息
ADM8828ARTZ
开关稳压器 Switched-Capacitor Voltage Inverter with Shutdown
GENERAL DESCRIPTION ADM8828ARTZ
The ADM8828/ADM8829 is a charge-pump voltage inverter which may be used to generate a negative supply from a positive input. Input voltages ranging from +1.5 V to +5.5 V can be inverted into a negative –1.5 V to –5.5 V output supply. This inverting scheme is ideal for generating a negative rail in single power-supply systems. Only two small external capacitors are needed for the charge pump. Output currents up to 25 mA with greater than 99% efficiency are achievable.
The ADM8828 also features a low power shutdown (SHDN) pin. This can be used to disable the device and reduce the quiescent current to 20 nA.
The ADM8828/ADM8829 is available in a 6-lead SOT-23 package.
FEATURES ADM8828ARTZ
Inverts Input Supply Voltage
99% Voltage Conversion Efficiency
25 mA Output Current
Shutdown Function
Requires Only Two Capacitors
1 mF Capacitors
18 V Output Resistance
+1.5 V to +5.5 V Input Range
600 mA Quiescent Current
20 nA Shutdown Current (ADM8828)
APPLICATIONS ADM8828ARTZ
Handheld Instruments
LCD Panels
Cellular Phones
PDAs
Remote Data Acquisition
Op Amp Power Supplies
