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| 型号： | ADM8829ARTZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/6页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP INV SOT23-6 |
| 标准包装： | 1 |
| 类型： | 切换式电容器（充电泵），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | -1.5 V ~ -5.5 V |
| 输入电压： | 1.5 V ~ 5.5 V |
| 频率 - 开关： | 190kHz |
| 电流 - 输出： | 25mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 包装： | 标准包装 |
| 供应商设备封装： | SOT-23-6 |
| 其它名称： | ADM8829ARTZ-REELDKR |
a
FEATURES
Inverts Input Supply Voltage
Switched-Capacitor
Voltage Inverter with Shutdown
ADM8828/ADM8829
FUNCTIONAL BLOCK DIAGRAMS
99% Voltage Conversion Efficiency
25 mA Output Current
Shutdown Function
Requires Only Two Capacitors
1
F Capacitors
18
Output Resistance
OUT 1
IN 2
CAP– 3
6 CAP+
ADM8828
5 SHDN
TOP VIEW
(Not to Scale) 4 GND
+1.5 V to +5.5 V Input Range
600 A Quiescent Current
OUT 1
IN 2
ADM8829
TOP VIEW
6 CAP+
5 NC
20 nA Shutdown Current (ADM8828)
CAP– 3
(Not to Scale) 4
GND
APPLICATIONS
Handheld Instruments
LCD Panels
Cellular Phones
PDAs
Remote Data Acquisition
Op Amp Power Supplies
GENERAL DESCRIPTION
The ADM8828/ADM8829 is a charge-pump voltage inverter
NC = NO CONNECT
+1.5V TO +5.5V
INPUT
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
C1 +
1 F
CAP+
ADM8828/
ADM8829
IN
inverting scheme is ideal for generating a negative rail in single
power-supply systems. Only two small external capacitors are
CAP–
SHDN
SHUTDOWN
CONTROL
needed for the charge pump. Output currents up to 25 mA with
greater than 99% efficiency are achievable.
GND
OUT
C2
INVERTED
NEGATIVE
OUTPUT
The ADM8828 also features a low power shutdown (SHDN)
pin. This can be used to disable the device and reduce the quies-
cent current to 20 nA.
The ADM8828/ADM8829 is available in a 6-lead SOT-23
package.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
+ 1 F
Figure 1. Typical Circuit Configuration
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 ? Analog Devices, Inc., 1999
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM8829ARTZ-REEL7 | 功能描述:IC REG SWITCHED CAP INV SOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
| ADM8830 | 制造商:AD 制造商全称:Analog Devices 功能描述:Charge Pump Regulator for Color TFT Panel |
| ADM8830ACP | 制造商:Analog Devices 功能描述:Charge Pump INV/STPUP -10.2V/5.1V/15.3V 5mA/0.05mA/-0.05mA 20-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:CHARGE PUMP REGULATOR FOR TFTDISPLAYS IC - Bulk |
| ADM8830ACP-REEL | 制造商:Analog Devices 功能描述:Charge Pump INV/STPUP -10.2V/5.1V/15.3V 5mA/0.05mA/-0.05mA 20-Pin LFCSP EP T/R |
| ADM8830ACP-REEL7 | 制造商:Analog Devices 功能描述:Charge Pump INV/STPUP -10.2V/5.1V/15.3V 5mA/0.05mA/-0.05mA 20-Pin LFCSP EP T/R |
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