50mA High-Voltage
Micro-power LDO in MSOP
PRELIMINARY TECHNICAL DATA
ADP1720
FEATURES
GENERAL DESCRIPTION
Wide Input Voltage Range: 4V to 28V
Low Quiescent Current: 25µA
±1% Initial Accuracy
The ADP1720 is a high-voltage, micro-power, low dropout
linear regulator. Designed for robust operation, the ADP1720
includes current limiting and short-circuit protection, and
thermal overload protection . With just 25µA of quiescent
supply current and a micro-power shutdown mode, this device
is ideal for applications that require low quiescent current. The
small thermally-enhanced MSOP package and 1µF ceramic
output capacitor provides a compact solution with low thermal
resistance for high power dissipation.
Very Low Dropout Voltage:
300 mV @ 50mA
Fixed 3.3V and 5V Voltage Options
Adjustable Output from 1.2V to 5.0V
Optimized for Small 1µF Ceramic Capacitors
Short Circuit Protection
Thermal Overload Protection
Spacing-saving Thermally Enhanced MSOP package
The ADP1720 is available in fixed output voltages of 3.3V and
5V, or its output voltage can be adjusted over a range of 1.2V to
5V. The ADP1720 operates over the -40°C to 125°C ambient
temperature range.
APPLICATIONS
Industrial Applications
Battery-Power Regulators
TYPICAL APPLICATION CIRCUIT
Figure 2. ADP1720 typical operation circuit for variable
output voltage options.
Figure 1. ADP1720 typical operation circuit for fixed output
voltage options.
Rev. PrA
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
© 2006 Analog Devices, Inc. All rights reserved.
Rev. PrA | Page 1 of 9