ADM8828:  Switched-Capacitor Voltage Inverter with Shutdown

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 ...More

ADM8828:  Switched-Capacitor Voltage Inverter with Shutdown

Product Description

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.

Features

  • Inverts Input Supply Voltage
  • 99% Voltage Conversion Efficiency
  • 25 mA Output Current
  • Shutdown Function
  • Requires Only Two Capacitors
  • 1 µF Capacitors
  • 18 V Output Resistance
  • +1.5 V to +5.5 V Input Range
  • 600 µA Quiescent Current
  • 20 nA Shutdown Current (ADM8828)

Diagrams

ADM8828 Diagram
Functional Block Diagram for ADM8828

技术指标

Input Voltage (V) 1.5 - 5.5
Vout Preset (V) -Vin
Iout 25mA
Vout #2 (V) n/a
Iout #2 (µA) n/a
Vout #3 (V) n/a
Iout #3 (µA) n/a
Power Efficiency (%) 99%
Supply Current (max) 1mA
Shutdown Current, max 2µA
Package 6-Lead SOT 23

浏览其他的产品

Part# Input Voltage (V) Vout Preset (V) Iout Power Efficiency (%) Supply Current (max) Shutdown Current, max Boost Inverter Regulated Output Package Price* (1000-4999)
ADM660 1.5 - 7 -Vin or 2*Vin 100mA 80 4.5mA 5µA Y Y --- DIP/SO/TSSOP $1.82
ADM8660 1.5 - 7 -Vin 100mA 80 4.5mA 5µA --- Y --- DIP/SO/TSSOP $1.92
ADM8828 1.5 - 5.5 -Vin 25mA 99 1mA 2µA --- Y --- 6-Lead SOT 23 $0.76
ADM8829 1.5 - 5.5 -Vin 25mA 99 1mA n/a --- Y --- 6-Lead SOT 23 $0.76
ADM8832 2.6 - 3.6 +5.1/+15.3/-10.3 5mA 90 400µA 1µA Y Y Y LFCSP-20 $2.02
ADM8839 2.6 - 3.6 +5/+15/-15 8mA 82 500µA 5µA Y Y Y LFCSP-20 $1.92
ADP3605 3-6v -3v/adj 120mA n/a 6mA 15µA --- Y Y SOIC-8, TSSOP-14 $1.50

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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*这里所列出的美国报价单仅供预算参考，指美元报价（规定订量的每片美元，美国离岸价），如有修改不再另行通知。由于地区关税、商业税、汇率及手续费原因，国际报价可能不同。对于特殊批量报价，请与您当地的ADI公司办事处或代理商联络。对于评估板和套件的报价是指一个单位价格。
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

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