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ADP151 fiches techniques PDF

Analog Devices - CMOS Linear Regulator

Numéro de référence ADP151
Description CMOS Linear Regulator
Fabricant Analog Devices 
Logo Analog Devices 





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ADP151 fiche technique
Data Sheet
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
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.
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
Ultralow Noise, 200 mA,
CMOS Linear Regulator
ADP151
TYPICAL APPLICATION CIRCUIT
VIN = 2.3V
1µF
1 VIN VOUT 5
2 GND
VOUT = 1.8V
1µF
ON
OFF
3 EN
NC 4
NC = NO CONNECT
Figure 1. TSOT ADP151 with Fixed Output Voltage, 1.8 V
VIN = 2.3V
CIN
ON
OFF
12
VIN VOUT
TOP VIEW
(Not to Scale)
VOUT = 1.8V
A COUT
1µF
EN GND B
Figure 2. WLCSP ADP151 with Fixed Output Voltage, 1.8 V
VIN = 2.3V 6
VIN
1 VOUT = 1.8V
VOUT
1µF
ON
OFF
5
ADP151
NC TOP VIEW NC
2
4
(Not to Scale)
EN GND
3
1µF
NC = NO CONNECT. DO NOT
CONNECT TO THIS PIN.
Figure 3. LFCSP ADP151 with Fixed Output Voltage, 1.8 V
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.
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.
Free Datasheet http://www.datasheet4u.com/

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