ADP3333 Analog Devices, ADP3333 Datasheet

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ADP3333

Manufacturer Part Number
ADP3333
Description
Manufacturer
Analog Devices
Datasheet

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FEATURES
High accuracy over line and load: ±0.8% @ 25°C,
Ultralow dropout voltage: 230 mV (maximum) @ 300 mA
Requires only C
Current and thermal limiting
Low noise
Low shutdown current: < 1 µA
2.6 V to 12 V supply range
−40°C to +85°C ambient temperature range
Ultrasmall 8-lead MSOP package
APPLICATIONS
Cellular phones
PCMCIA cards
Personal digital assistants (PDAs)
DSP/ASIC supplies
GENERAL DESCRIPTION
The ADP3333 is a member of the ADP333x family of precision
low dropout (LDO) anyCAP® voltage regulators. Pin compatible
with the MAX8860, the ADP3333 operates with a wider input
voltage range of 2.6 V to 12 V and delivers a load current up to
300 mA. ADP3333 stands out from other conventional LDOs
with a novel architecture and an enhanced process that enables
it to offer performance advantages over its competition. Its
patented design requires only a 1.0 μF output capacitor for
stability. This device is insensitive to output capacitor equivalent
series resistance (ESR) and is stable with any good quality
capacitor, including ceramic (MLCC) types for space-restricted
applications. The ADP3333 achieves exceptional accuracy of
±0.8% at room temperature and ±1.8% over temperature, line,
and load variations. The dropout voltage of the ADP3333 is
only 140 mV (typical) at 300 mA. This device also includes a
safety current limit, thermal overload protection, and a shutdown
feature. In shutdown mode, the ground current is reduced to
less than 1 μA. The ADP3333 has ultralow quiescent current,
70 μA (typical) in light load situations.
Rev. B
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.
±1.8% over temperature
anyCAP is stable with any type of capacitor (including MLCC)
OUT
= 1.0 µF for stability
High Accuracy Ultralow I
anyCAP Low Dropout Regulator
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
V
SD
IN
IN
1µF
C
IN
+
OFF
PROTECTION
THERMAL
FUNCTIONAL BLOCK DIAGRAM
2
ON
IN
SD
ADP3333
7
Figure 2. Typical Application Circuit
©2001–2009 Analog Devices, Inc. All rights reserved.
GND
3
OUT
NC
DRIVER
GND
Q1
Figure 1.
NC = NO CONNECT
4
1
CC
BAND GAP
+
C
1µF
ADP3333
OUT
g
m
REF
Q
ADP3333
, 300 mA,
V
OUT
www.analog.com
R1
R2
OUT

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ADP3333 Summary of contents

Page 1

... Personal digital assistants (PDAs) DSP/ASIC supplies GENERAL DESCRIPTION The ADP3333 is a member of the ADP333x family of precision low dropout (LDO) anyCAP® voltage regulators. Pin compatible with the MAX8860, the ADP3333 operates with a wider input voltage range of 2 and delivers a load current up to 300 mA ...

Page 2

... ADP3333 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 Thermal Resistance ...................................................................... 4 ESD Caution .................................................................................. 4 Pin Configuration and Function Descriptions ............................. 5 Typical Performance Characteristics ............................................. 6 REVISION HISTORY 4/09—Rev Rev. B Changes to Voltage Accuracy, Line Regulation, Load Regulation, and Dropout Voltage Parameters, Table 1 ................ 3 Changes to Table 2 ............................................................................ 4 Added Thermal Resistance Section and Table 3 ...

Page 3

... Rev Page Min Typ = 25°C −0.8 J −1.8 0.04 0.04 140 105 30 600 = 300 mA 45 2.0 2.0 1.5 1.4 200 0°C to 125° 0.01 2.0 0.85 0.8 0.01 0.01 ADP3333 Max Unit +0.8 % +1.8 % mV/V mV/mA 230 mV 185 μV rms 5.5 mA 4 275 μA 100 μA 190 μA 160 μA 1 μA V 0.4 ...

Page 4

... ADP3333 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Input Supply Voltage Shutdown Input Voltage Power Dissipation Operating Ambient Temperature Range Operating Junction Temperature Range Soldering Conditions Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only ...

Page 5

... Active Low Shutdown Pin. Connect to ground to disable the regulator output. When shutdown is not used, SD connect this pin to the IN pin. OUT ADP3333 TOP VIEW GND (Not to Scale CONNECT 1 CAN BE CONNECTED TO ANY OTHER PIN. Figure 3. Pin Configuration Rev Page ADP3333 ...

Page 6

... ADP3333 TYPICAL PERFORMANCE CHARACTERISTICS 2.502 0mA 2.500 2.498 100mA 2.496 2.494 200mA 2.492 300mA 2.490 2.488 INPUT VOLTAGE (V) Figure 4. Line Regulation Output Voltage vs. Input Voltage 2.502 2.500 2.498 2.496 2.494 2.492 2.490 2.488 0 50 100 150 OUTPUT CURRENT (mA) Figure 5 ...

Page 7

... OUT 2. 8.3Ω L 2.51 2.50 2.49 3.50 3.00 4 2.7 2.6 2.5 2.4 300 V = 2.5V OUT 8.3Ω L 800 Rev Page ADP3333 V OUT R = 8.3Ω 1µ 140 180 TIME (µs) Figure 13. Line Transient Response µ OUT R = 8.3Ω 10µ 140 180 TIME (µs) Figure 14. Line Transient Response µ ...

Page 8

... ADP3333 2.5V OUT 2 10µF L 2.6 2.5 2.4 300 10 200 400 TIME (µs) Figure 16. Load Transient Response 3.6V IN 200 400 600 TIME (µs) Figure 17. Short-Circuit Current 3 1µ 10µF 0 1µ 200 400 600 TIME (µs) Figure 18. Turn-On/Turn-Off Response ...

Page 9

... LDOs more difficult because of their unclear specifications and extreme variations over temperature. With the ADP3333 anyCAP LDO, this is no longer true. This device can be used with virtually any good quality capacitor, with no constraint on the minimum ESR. Its innovative design allows the circuit to be stable with just a small 1.0 μ ...

Page 10

... LDO.  Use additional copper layers or planes to reduce the thermal resistance. Again, connecting the other layers to the GND and NC pins of the ADP3333 is best, but not necessary. When connecting the ground pad to other layers, use multiple vias. Rev Page ...

Page 11

... ADP3333ARMZ-1.5-RL 1 −40°C to +85°C 1 ADP3333ARMZ-1.8-RL −40°C to +85°C ADP3333ARMZ-1.8RL7 1 −40°C to +85°C 1 ADP3333ARMZ-2.5-RL −40°C to +85°C ADP3333ARMZ-2.5-R7 1 −40°C to +85°C 1 ADP3333ARMZ-2.77R7 −40°C to +85°C 1 ADP3333ARMZ-3-R7 −40°C to +85°C 1 ADP3333ARMZ-3 ...

Page 12

... ADP3333 NOTES ©2001–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02615-0-4/09(B) Rev Page ...

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