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ADP151AUJZ-2.5-R7 数据表(PDF) 1 Page - Analog Devices

部件名 ADP151AUJZ-2.5-R7
功能描述  Ultralow Noise, 200 mA, CMOS Linear Regulator
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP151AUJZ-2.5-R7 数据表(HTML) 1 Page - Analog Devices

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Ultralow Noise, 200 mA,
CMOS Linear Regulator
Data Sheet
ADP151
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2010–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Ultralow noise: 9 µV rms
No noise bypass capacitor required
Stable with 1 µF ceramic input and output capacitors
Maximum output current: 200 mA
Input voltage range: 2.2 V to 5.5 V
Low quiescent current
IGND = 10 µA with 0 load
IGND = 265 μA with 200 mA load
Low shutdown current: <1 µA
Low dropout voltage: 140 mV at 200 mA load
Initial accuracy: ±1%
Accuracy over line, load, and temperature: ±2.5%
16 fixed output voltage options: 1.1 V to 3.3 V
PSRR performance of 70 dB at 10 kHz
Current-limit and thermal overload protection
Logic controlled enable
Internal pull-down resistor on EN input
5-lead TSOT package
6-lead LFCSP package
4-ball, 0.4 mm pitch WLCSP
APPLICATIONS
RF, VCO, and PLL power supplies
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
Post dc-to-dc regulation
Portable medical devices
TYPICAL APPLICATION CIRCUIT
NC = NO CONNECT
1
2
3
5
4
1µF
1µF
VOUT = 1.8V
VIN = 2.3V
VOUT
NC
VIN
GND
EN
OFF
ON
Figure 1. TSOT ADP151 with Fixed Output Voltage, 1.8 V
VIN
VOUT
1
2
EN
GND
COUT
1µF
CIN
VOUT = 1.8V
VIN = 2.3V
TOP VIEW
(Not to Scale)
A
B
OFF
ON
Figure 2. WLCSP ADP151 with Fixed Output Voltage, 1.8 V
ADP151
TOP VIEW
(Not to Scale)
4
6
5
GND
VOUT
NC
3
1
2
EN
VIN
NC
NC = NO CONNECT. DO NOT
CONNECT TO THIS PIN.
ON
OFF
1µF
1µF
VIN = 2.3V
VOUT = 1.8V
Figure 3. LFCSP ADP151 with Fixed Output Voltage, 1.8 V
GENERAL DESCRIPTION
The ADP151 is an ultralow noise, low dropout linear regulator
that operates from 2.2 V to 5.5 V and provides up to 200 mA
of output current. The low 140 mV dropout voltage at 200 mA
load improves efficiency and allows operation over a wide input
voltage range.
Using an innovative circuit topology, the ADP151 achieves
ultralow noise performance without the necessity of a bypass
capacitor, making it ideal for noise-sensitive analog and RF
applications. The ADP151 also achieves ultralow noise per-
formance without compromising PSRR or transient line and
load performance. The low 265 μA of quiescent current at
200 mA load makes the ADP151 suitable for battery-operated
portable equipment.
The ADP151 also includes an internal pull-down resistor on the
EN input.
The ADP151 is specifically designed for stable operation with
tiny 1 µF, ±30% ceramic input and output capacitors to meet
the requirements of high performance, space constrained
applications.
The ADP151 is capable of 16 fixed output voltage options,
ranging from 1.1 V to 3.3 V.
Short-circuit and thermal overload protection circuits prevent
damage in adverse conditions. The ADP151 is available in tiny
5-lead TSOT, 6-lead LFCSP, and 4-ball, 0.4 mm pitch, halide-free
WLCSP packages for the smallest footprint solution to meet a
variety of portable power application requirements.


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