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Linear Regulator. ADP1711 Datasheet |
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www.DataSheet4U.com
FEATURES
Maximum output current: 150 mA
Input voltage range: 2.5 V to 5.5 V
Light load efficient
IGND = 35 μA with zero load
IGND = 40 μA with 100 μA load
Low shutdown current: <1 μA
Low dropout voltage: 150 mV @ 150 mA load
Initial accuracy: ±1%
Accuracy over line, load, and temperature: ±2%
Stable with small 1μF ceramic output capacitor
16 fixed output voltage options: 0.75 V to 3.3 V (ADP1710)
Adjustable output voltage option: 0.8 V to 5.0 V
(ADP1710 Adjustable)
16 fixed output voltage options with reference bypass:
0.75 V to 3.3 V (ADP1711)
High PSRR: 69 dB @ 1 kHz
Low noise: 40 μVRMS
Excellent load/line transient response
Current limit and thermal overload protection
Logic controlled enable
5-lead TSOT package
APPLICATIONS
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
Post dc-dc regulation
GENERAL DESCRIPTION
The ADP1710/ADP1711 are low dropout linear regulators
that operate from 2.5 V to 5.5 V and provide up to 150 mA of
output current. Utilizing a novel scaling architecture, ground
current drawn is a very low 40 μA, when driving a 100 μA
load, making the ADP1710/ADP1711 ideal for battery-
operated portable equipment.
The ADP1710 and the ADP1711 are each available in sixteen
fixed output voltage options. The ADP1710 is also available in
an adjustable version, which allows output voltages that range
from 0.8 V to 5 V via an external divider. The ADP1711 allows
for a reference bypass capacitor to be connected, which reduces
output voltage noise and improves power supply rejection.
150 mA, Low Dropout,
CMOS Linear Regulator
ADP1710/ADP1711
TYPICAL APPLICATION CIRCUITS
VIN = 5V
1µF
ADP1710
1 IN
VOUT = 3.3V
OUT 5
2 GND
1µF
3 EN
NC 4
NC = NO CONNECT
Figure 1. ADP1710 with Fixed Output Voltage, 3.3 V
VIN = 5.5V
1µF
ADP1710
ADJUSTABLE
1 IN
VOUT = 0.8V(1 + R1/R2)
OUT 5
2 GND
1µF
3 EN
ADJ 4
R1
R2
Figure 2. ADP1710 with Adjustable Output Voltage, 0.8 V to 5.0 V
VIN = 5V
1µF
ADP1711
1 IN
OUT 5
VOUT = 3.3V
2 GND
3 EN
10nF
BYP 4
1µF
Figure 3. ADP1711 with Fixed Output Voltage and Bypass Capacitor, 3.3 V
The ADP1710/ADP1711 are optimized for stable operation with
small 1 μF ceramic output capacitors, allowing for good transient
performance while occupying minimal board space. An enable
pin controls the output voltage on both devices. There is also an
under-voltage lockout circuit on both devices, which disables the
regulator if IN drops below a minimum threshold.
An internal soft start gives a typical start-up time of 80 μs.
Short-circuit protection and thermal overload protection
circuits prevent damage to the devices in adverse conditions.
Both the ADP1710 and the ADP1711 are available in tiny
5lead TSOT packages, for the smallest footprint solution to all
your power needs.
Rev. 0
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.
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
©2006 Analog Devices, Inc. All rights reserved.
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ADP1710/ADP1711
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Typical Application Circuits............................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Thermal Resistance ...................................................................... 4
ESD Caution.................................................................................. 4
Pin Configurations and Function Descriptions ........................... 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ........................................................................ 8
Adjustable Output Voltage (ADP1710 Adjustable) ................. 8
Bypass Capacitor (ADP1711) ..................................................... 8
REVISION HISTORY
10/06—Revision 0: Initial Version
Enable Feature ...............................................................................8
Undervoltage Lockout (UVLO) ..................................................9
Application Information................................................................ 10
Capacitor Selection .................................................................... 10
Current Limit and Thermal Overload Protection ................. 10
Thermal Considerations............................................................ 11
Printed Circuit Board Layout Considerations ....................... 12
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
Rev. 0 | Page 2 of 16
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ADP1710/ADP1711
SPECIFICATIONS
VIN = (VOUT + 0.5 V) or 2.5 V (whichever is greater), IOUT = 1 mA, CIN = COUT = 1 μF, TA = 25°C, unless otherwise noted.
Table 1.
Parameter
INPUT VOLTAGE RANGE
OPERATING SUPPLY CURRENT
SHUTDOWN CURRENT
FIXED OUTPUT VOLTAGE ACCURACY
(ADP1710 AND ADP1711)
ADJUSTABLE OUTPUT VOLTAGE
ACCURACY (ADP1710 ADJUSTABLE)1
LINE REGULATION
LOAD REGULATION2
DROPOUT VOLTAGE3
START-UP TIME4
ADP1710
ADP1711
CURRENT LIMIT THRESHOLD5
THERMAL SHUTDOWN THRESHOLD
THERMAL SHUTDOWN HYSTERESIS
UVLO ACTIVE THRESHOLD
UVLO INACTIVE THRESHOLD
UVLO HYSTERESIS
EN INPUT LOGIC HIGH
EN INPUT LOGIC LOW
EN INPUT LEAKAGE CURRENT
ADJ INPUT BIAS CURRENT
(ADP1710 ADJUSTABLE)
OUTPUT NOISE
ADP1710
ADP1711
POWER SUPPLY REJECTION RATIO
ADP1710
ADP1711
Symbol
VIN
IGND
IGND-SD
VOUT
VOUT
∆VOUT/∆VIN
∆VOUT/∆IOUT
VDROPOUT
TSTART-UP
ILIMIT
TSSD
TSSD-HYS
UVLOACTIVE
UVLOINACTIVE
UVLOHYS
VIH
VIL
VI-LEAKAGE
ADJI-BIAS
OUTNOISE
PSRR
Conditions
TJ = –40°C to +125°C
IOUT = 0 μA
IOUT = 0 μA, TJ = –40°C to +125°C
IOUT = 100 μA
IOUT = 100 μA, TJ = –40°C to +125°C
IOUT = 100 mA
IOUT = 100 mA, TJ = –40°C to +125°C
IOUT = 150 mA
IOUT = 150 mA, TJ = –40°C to +125°C
EN = GND
EN = GND, TJ = –40°C to +125°C
IOUT = 1 mA
100 μA < IOUT < 150 mA, TJ = –40°C to +125°C
IOUT = 1 mA
100 μA < IOUT < 150 mA, TJ = –40°C to +125°C
VIN = (VOUT + 0.5 V) to 5.5 V, TJ = –40°C to +125°C
IOUT = 10 mA to 150 mA
IOUT = 10 mA to 150 mA, TJ = –40°C to +125°C
IOUT = 100 mA, VOUT ≥ 3.0 V
IOUT = 100 mA, VOUT ≥ 3.0 V, TJ = –40°C to +125°C
IOUT = 150 mA, VOUT ≥ 3.0 V
IOUT = 150 mA, VOUT ≥ 3.0 V, TJ = –40°C to +125°C
IOUT = 100 mA, 2.5 V ≤ VOUT < 3.0 V
IOUT = 100 mA, 2.5 V ≤ VOUT < 3.0 V, TJ = –40°C to +125°C
IOUT = 150 mA, 2.5 V ≤ VOUT < 3.0 V
IOUT = 150 mA, 2.5 V ≤ VOUT < 3.0 V, TJ = –40°C to +125°C
With 10 nF bypass capacitor
TJ rising
VIN falling
VIN rising
2.5 V ≤ VIN ≤ 5.5 V
2.5 V ≤ VIN ≤ 5.5 V
EN = IN or GND
10 Hz to 100 kHz, VOUT = 3.3 V
10 Hz to 100 kHz, VOUT = 0.75 V, with 10 nF bypass capacitor
1 kHz, VOUT = 3.3 V
1 kHz, VOUT = 0.75 V, with 10 nF bypass capacitor
Min Typ
2.5
35
40
665
1
0.1
–1
–2
0.792
0.784
–0.1
0.8
0.002
100
150
120
180
80
100
180 270
150
15
1.95
250
1.8
0.1
30
330
40
58
69
Max
5.5
50
80
860
1.3
1.0
+1
+2
0.808
0.816
+0.1
0.004
175
250
200
300
360
2.45
0.4
1
100
Unit
V
μA
μA
μA
μA
μA
μA
mA
mA
μA
μA
%
%
V
V
%/ V
%/mA
%/mA
mV
mV
mV
mV
mV
mV
mV
mV
μs
μs
mA
°C
°C
V
V
mV
V
V
μA
nA
μVrms
μVrms
dB
dB
1 Accuracy when OUT is connected directly to ADJ. When OUT voltage is set by external feedback resistors, absolute accuracy in adjust mode depends on the tolerances
of resistors used.
2 Based on an end-point calculation using 10 mA and 150 mA loads. See Figure 8 for typical load regulation performance for loads less than 10 mA.
3 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output
voltages above 2.5 V.
4 Start-up time is defined as the time between the rising edge of EN to OUT being at 90% of its nominal value.
5 Current limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 1.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 1.0 V, or 0.9 V.
Rev. 0 | Page 3 of 16
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