Voltage Regulator. ADP221 Datasheet

ADP221 Regulator. Datasheet pdf. Equivalent

ADP221 Datasheet
Recommendation ADP221 Datasheet
Part ADP221
Description High PSRR Voltage Regulator
Feature ADP221; Data Sheet FEATURES Input voltage range: 2.5 V to 5.5 V Dual independent 200 mA low dropout voltage .
Manufacture Analog Devices
Datasheet
Download ADP221 Datasheet




Analog Devices ADP221
Data Sheet
FEATURES
Input voltage range: 2.5 V to 5.5 V
Dual independent 200 mA low dropout voltage regulators
Miniature 6-ball, 1.0 mm × 1.5 mm WLCSP and 6-ball
bumped bare die
Initial accuracy: ±1%
Stable with 1 µF ceramic output capacitors
No noise bypass capacitor required
Two independent logic controlled enables
Overcurrent and thermal protection
Active output pull-down (ADP221)
Key specifications
High PSRR
76 dB PSRR up to 1 kHz
70 dB PSRR at 10 kHz
60 dB PSRR at 100 kHz
40 dB PSRR at 1 MHz
Low output noise
27 µV rms typical output noise at VOUT = 1.2 V
50 µV rms typical output noise at VOUT = 2.8 V
Excellent transient response
Low dropout voltage: 150 mV @ 200 mA load
60 µA typical ground current at no load, both LDOs enabled
100 µs fast turn-on circuit
Guaranteed 200 mA output current per regulator
−40°C to +125°C junction temperature
APPLICATIONS
Mobile phones
Digital cameras and audio devices
Portable and battery-powered equipment
Portable medical devices
Post dc-to-dc regulation
GENERAL DESCRIPTION
The 200 mA dual output ADP220/ADP221 combine high PSRR,
low noise, low quiescent current, and low dropout voltage in a
voltage regulator ideally suited for wireless applications with
demanding performance and board space requirements.
The low quiescent current, low dropout voltage, and wide input
voltage range of the ADP220/ADP221 extend the battery life of
portable devices. The ADP220/ADP221 maintain power supply
rejection greater than 60 dB for frequencies as high as 100 kHz
while operating with a low headroom voltage. The ADP220
offers much lower noise performance than competing LDOs
Dual, 200 mA, Low Noise,
High PSRR Voltage Regulator
ADP220/ADP221
TYPICAL APPLICATION CIRCUITS
12
ON
OFF
A
EN1
VOUT1
VOUT1 = 2.8V
1µF
B
ON
OFF
C
GND
VIN
TOP VIEW
(Not to Scale)
EN2 VOUT2
VIN = 3.3V
1µF
VOUT2 = 2.8V
1µF
Figure 1. Typical Application Circuit
VIN
THERMAL
SHUTDOWN
CURRENT
LIMIT
VOUT1
60Ω
EN1 CONTROL
LOGIC
AND
EN2 ENABLE
REFERENCE
ADP221
ONLY
ADP220
GND
CURRENT
LIMIT
60Ω
VOUT2
Figure 2. Block Diagram of the ADP220/ADP221
without the need for a noise bypass capacitor. The ADP221 also
includes an active pull-down to quickly discharge output loads.
The ADP220/ADP221 are available in a miniature 6-ball
WLCSP package and 6-ball bumped bare die and is stable with
tiny 1 µF ± 30% ceramic output capacitors, resulting in the smallest
possible board area for a wide variety of portable power needs.
The ADP220/ADP221 are available in many output voltage
combinations, ranging from 0.8 V to 3.3 V, and offer overcur-
rent and thermal protection to prevent damage in adverse
conditions.
Rev. H
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Analog Devices ADP221
ADP220/ADP221
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Typical Application Circuits............................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Input and Output Capacitor, Recommended Specifications.. 4
Absolute Maximum Ratings............................................................ 5
Thermal Data ................................................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
REVISION HISTORY
1/13—Rev. G to Rev. H
Changes to Undervoltage Lockout Input Voltage Rising
Parameter and Undervoltage Lockout Input Voltage Falling
Parameter, Table 1............................................................................. 3
11/12—Rev. F to Rev. G
Added 6-Ball Bumped Bare Die (CD-6-7)......................Universal
Change to Undervoltage Lockout Input Voltage Rising
Parameter, Table 1............................................................................. 3
Updated Outline Dimensions ....................................................... 17
Moved Ordering Guide.................................................................. 18
4/12—Rev. E to Rev. F
Changes to Ordering Guide .......................................................... 17
11/10—Rev. D to Rev. E
Changes to Ordering Guide .......................................................... 17
5/10—Rev. C to Rev. D
Changes to Figure 1.......................................................................... 1
Changes to Ordering Guide .......................................................... 17
Data Sheet
Typical Performance Characteristics ..............................................7
Theory of Operation ...................................................................... 11
Applications Information .............................................................. 12
Capacitor Selection .................................................................... 12
Undervoltage Lockout ............................................................... 13
Enable Feature ............................................................................ 13
Current-Limit and Thermal Overload Protection................. 14
Thermal Considerations............................................................ 14
Printed Circuit Board (PCB) Layout Considerations................ 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 18
1/10—Rev. B to Rev. C
Changes to Figure 24...................................................................... 10
10/09—Rev. A to Rev. B
Changes to Features Section ............................................................1
Changes to Table 3 and Table 4........................................................5
Changes to Figure 4, Figure 6, Figure 7, and Figure 9 ..................7
Changes to Figure 10 and Figure 12 ...............................................8
Changes to Figure 17.........................................................................9
Changes to Figure 25...................................................................... 10
Changes to Enable Feature Section and Figure 32..................... 13
Changes to Current-Limit and Thermal Overland Protection
Section and Thermal Considerations Section ............................ 14
Changes to Ordering Guide .......................................................... 17
3/09—Rev. 0 to Rev. A
Changes to Figure 15.........................................................................8
Changes to Figure 16.........................................................................9
Changes to Ordering Guide .......................................................... 17
10/08—Revision 0: Initial Version
Rev. H | Page 2 of 20



Analog Devices ADP221
Data Sheet
ADP220/ADP221
SPECIFICATIONS
VIN = (VOUT + 0.5 V) or 2.5 V (whichever is greater), EN1 = EN2 = VIN, IOUT1 = IOUT2 = 10 mA, CIN = COUT1 = COUT2 = 1 µF, TA = 25°C,
unless otherwise noted.
Table 1.
Parameter
INPUT VOLTAGE RANGE
OPERATING SUPPLY CURRENT WITH
BOTH REGULATORS ON
SHUTDOWN CURRENT
FIXED OUTPUT VOLTAGE ACCURACY
LINE REGULATION
LOAD REGULATION1
DROPOUT VOLTAGE2
START-UP TIME3
ACTIVE PULL-DOWN RESISTANCE
CURRENT-LIMIT THRESHOLD4
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
EN INPUT
EN Input Logic High
EN Input Logic Low
EN Input Leakage Current
UNDERVOLTAGE LOCKOUT
Input Voltage Rising
Input Voltage Falling
Hysteresis
OUTPUT NOISE
Symbol
VIN
IGND
Conditions
TJ = −40°C to +125°C
IOUT = 0 µA
IGND-SD
VOUT
∆VOUT/∆VIN
∆VOUT/∆IOUT
VDROPOUT
tSTART-UP
tSHUTDOWN
ILIMIT
IOUT = 0 µA, TJ = −40°C to +125°C
IOUT = 10 mA
IOUT = 10 mA, TJ = −40°C to +125°C
IOUT = 200 mA
IOUT = 200 mA, TJ = −40°C to +125°C
EN1= EN2 = GND
EN1= EN2 = GND, TJ = −40°C to +125°C
100 µA < IOUT < 200 mA, VIN = (VOUT + 0.5 V) to
5.5 V, TJ = −40°C to +125°C
VIN = (VOUT + 0.5 V) to 5.5 V
VIN = (VOUT + 0.5 V) to 5.5 V, TJ = −40°C to +125°C
IOUT = 1 mA to 200 mA
IOUT = 1 mA to 200 mA, TJ = −40°C to +125°C
VOUT = 3.3 V
IOUT = 10 mA
IOUT = 10 mA, TJ = −40°C to +125°C
IOUT = 200 mA
IOUT = 200 mA, TJ = −40°C to +125°C
VOUT = 3.3 V, both initially off, enable one
VOUT = 0.8 V, both initially off, enable one
VOUT = 3.3 V, one initially on, enable second
VOUT = 0.8 V, one initially on, enable second
VOUT = 2.8 V, RLOAD = ∞, COUT = 1 μF, ADP221 only
Min Typ Max Unit
2.5 5.5 V
60 µA
120 µA
70 µA
140 µA
120 µA
220 µA
0.1 µA
2 µA
−1 +1 %
−2 +2 %
−0.03
240
0.01
0.001
7.5
150
240
100
180
20
80
300
+0.03
0.003
12
230
440
%/V
%/V
%/mA
%/mA
mV
mV
mV
mV
mV
µs
µs
µs
µs
Ω
mA
TSSD
TSSD-HYS
TJ rising
155 °C
15 °C
VIH
VIL
VI-LEAKAGE
UVLO
UVLORISE
UVLOFALL
UVLOHYS
OUTNOISE
2.5 V ≤ VIN ≤ 5.5 V
2.5 V ≤ VIN ≤ 5.5 V
EN1 = EN2 = VIN or GND
EN1 = EN2 = VIN or GND, TJ = −40°C to +125°C
1.2
10 Hz to 100 kHz, VIN = 5 V, VOUT = 3.3 V
10 Hz to 100 kHz, VIN = 5 V, VOUT = 2.8 V
10 Hz to 100 kHz, VIN = 3.6 V, VOUT = 2.5 V
10 Hz to 100 kHz, VIN = 3.6 V, VOUT = 1.2 V
2.2
V
0.4 V
0.1 µA
1 µA
2.45 V
2.35 V
100 mV
56 µV rms
50 µV rms
45 µV rms
27 µV rms
Rev. H | Page 3 of 20







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