Ultra-Low Quiescent Current 15 V 800 mA Step Down Synchronous Regulator Improves Power Efficiency & Density for Portable Elec...
18 April 2012 - 2:00PM
Business Wire
Analog Devices, Inc. (ADI), a global leader in high-performance
semiconductors for signal-processing applications, today introduced
the ADP2370/71 15-V, 800-mA output DC-to-DC regulator optimized for
better energy efficiencies in battery-powered applications using
multiple alkaline/NiMH, lithium cells, or other standard power
sources.
15 V 800 mA Ultra-Low Quiescent Current
Synchronous Step Down Regulators (Photo: Business Wire)
The highly integrated ADP2370/71 regulators offer a wide input
voltage supply range of 3.2 V to 15 V and require only three
external components to reduce overall footprint. The ADP2370/71
offer greater than 93 percent conversion efficiency, enabling
designers to support a higher load in a smaller area. During light
load conditions, the ADP2370/71 can be configured to automatically
switch to a low-quiescent power-save mode for additional battery
life savings. The ADP2371, otherwise identical to the ADP2370, also
offers a quick output discharge feature to ensure that the output
bypass capacitors are completely discharged so that the processor
can wake up in a known state.
By using a proprietary, high-speed, current-mode constant
frequency PWM control scheme, the ADP2370/71 offer excellent
stability and transient response to minimize the output voltage
ripple. The switching frequency of these regulators can be
synchronized to an external clock to eliminate beat frequencies
between regulators. The ADP2370/71 operate over the −40°C to +125°C
junction temperature range and are available in compact 3 mm × 3 mm
QFN-8 lead packages.
- Download data sheets and view product
page: http://www.analog.com/ADP2370
- Download data sheets and view product
page: http://www.analog.com/ADP2371
- Learn more about ADI’s DC-to-DC
regulators:
http://www.analog.com/en/power-management/switching-regulators-integrated-fet-switches/products/index.html
- View discussions and FAQs on Analog
Devices’ Power Management products on Engineer Zone
ADP2370/71 DC-to-DC Regulators Key Features
- Wide input voltage range up of 3.2 V to
15 V
- Output voltage is adjustable from 0.8 V
to input voltage (capable of 100 percent duty cycle operation).
Fixed output voltage options are also available: 0.8 V, 1.2 V, 1.5
V, 1.8 V, 2.5 V, 3.0 V, 3.3 V and 5 V.
- Ultra low Iq
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