ANALOG DEVICES ADP150 Service Manual
Ultralow Noise,
ADP150
08343-001
NC = NO CONNECT
1
2
3
5
4
C
OUT
1µF
C
IN
1µF
V
OUT
= 1.8VVIN = 2.3V
VOUT
NC
VIN
GND
EN
OFF
ON
VIN VOUT
1 2
EN GND
C
OUT
1µF
C
IN
1µF
V
OUT
= 1.8V
V
IN
= 2.3V
TOP VIEW
(Not to Scale)
A
B
08343-002
OFF
ON
FEATURES
Ultra low noise: 9 µV rms, independent of V
No additional noise bypass capacitor required
Stable with 1 µF ceramic input and output capacitors
Maximum output current: 150 mA
Input voltage range: 2.2 V to 5.5 V
Low quiescent current
I
= 10 µA with zero load
GND
Low shutdown current: <1 µA
Low dropout voltage: 105 mV @ 150 mA load
Initial output voltage accuracy: ±1%
Up to 14 fixed output voltage options: 1.8 V to 3.3 V
PSRR performance of 70 dB at 10 kHz
Current limit and thermal overload protection
Logic-controlled enable
5-lead TSOT package
4-ball, 0.8 mm × 0.8 mm, 0.4 mm pitch WLCSP
APPLICATIONS
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
Post dc-to-dc regulation
Portable medical devices
RF, PLL, VCO, and clock power supplies
OUT
150 mA CMOS Linear Regulator
TYPICAL APPLICATION CIRCUITS
Figure 1. 5-Lead TSOT with Fixed Output Voltage, 1.8 V
Figure 2. 4-Ball WLCSP with Fixed Output Voltage, 1.8 V
GENERAL DESCRIPTION
The ADP150 is an ultralow noise (9 µV), low dropout, linear
regulator that operates from 2.2 V to 5.5 V and provides up to
150 mA of output current. The low 105 mV dropout voltage at
150 mA load improves efficiency and allows operation over a
wide input voltage range.
Using an innovative circuit topology, the ADP150 achieves ultralow
noise performance without the necessity of an additional noise
bypass capacitor, making it ideal for noise sensitive analog and
RF applications. The ADP150 also achieves ultralow noise
performance without compromising PSRR or line and load
transient performance. The ADP150 offers the best combination
of ultralow noise and quiescent current consumption to maximize
battery life in portable applications.
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.
The ADP150 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 ADP150 is available in 14 fixed output voltage options,
ranging from 1.8 V to 3.3 V.
Short-circuit and thermal overload protection circuits prevent
damage in adverse conditions. The ADP150 is available in tiny
5-lead TSOT and 4-ball, 0.4 mm pitch WLCSP packages for the
smallest footprint solution to meet a variety of portable power
applications.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113 ©2009-2010 Analog Devices, Inc. All rights reserved.
www.analog.com
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