参数资料
| 型号： | ADP1720TRMZ3.3-EP |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V 50MA 8MSOP |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 4 V ~ 28 V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 50mA（最小值） |
| 电流 - 限制（最小）： | 55mA |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
50 mA, High Voltage,
Micropower Linear Regulator
Data Sheet
FEATURES
ADP1720-EP
TYPICAL APPLICATION CIRCUITS
Wide input voltage range: 4 V to 28 V
Maximum output current: 50 mA
Low light load current
28 μA at 0 μA load
35 μA at 100 μA load
V IN = 28V
1μF
1
2
3
4
ADP1720-EP
FIXED
GND GND
IN GND
OUT GND
EN GND
8
7
6
5
Low shutdown current: 0.7 μA
Low dropout voltage: 275 mV @ 50 mA load
V OUT = 5V
1μF
Initial accuracy: ±0.5%
Accuracy over line, load, and temperature: ±2%
Figure 1. ADP1720-EP with Fixed Output Voltage, 5.0 V
Stable with small 1 μF ceramic output capacitor
Fixed 3.3 V and 5.0 V output voltage options
R2
ADP1720-EP
ADJUSTABLE
Adjustable output voltage option: 1.225 V to 5.0 V
Current limit and thermal overload protection
Logic controlled enable
Space-saving MSOP package
V IN = 12V
V OUT =
1.225V(1 + R1/R2)
1μF
1μF
R1
1
2
3
4
ADJ
IN
OUT
EN
GND
GND
GND
GND
8
7
6
5
ENHANCED PRODUCT FEATURES
Enhanced processing (EP) for ?55°C to +125°C operation
APPLICATIONS
DC-to-dc post regulation
PCMCIA regulation
Keep-alive power in portable equipment
Industrial applications
Aeronautic and military operating temperature environment
GENERAL DESCRIPTION
The ADP1720-EP is a high voltage, micropower, low dropout
linear regulator. Operating over a very wide input voltage range
of 4 V to 28 V, the ADP1720-EP can provide up to 50 mA of
output current. With just 28 μA of quiescent supply current and a
micropower shutdown mode, this device is ideal for applications
that require low quiescent current.
The ADP1720-EP is available in fixed output voltages of 3.3 V
and 5.0 V. An adjustable version is also available, which allows
the output to be set anywhere between 1.225 V and 5.0 V. An
enable function that allows external circuits to turn on and turn
off the ADP1720 output is available. For automatic startup, the
enable (EN) pin can be connected directly to the input rail.
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Figure 2. ADP1720-EP with Adjustable Output Voltage, 1.225 V to 5.0 V
The ADP1720-EP is optimized for stable operation with small
1 μF ceramic output capacitors, allowing for good transient
performance while occupying minimal board space.
The ADP1720-EP operates from –55°C to +125°C and uses
current limit protection and thermal overload protection
circuits to prevent damage to the device in adverse conditions.
Available in a small MSOP package, the ADP1720-EP provides
a compact solution with low thermal resistance.
Additional application and technical information can be found
in the ADP1720 data sheet.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2011–2012 Analog Devices, Inc. All rights reserved.
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