IC REG LDO ADJ 500MA 8-SOIC

ADP3334ARZ

Manufacturer Part NumberADP3334ARZ
DescriptionIC REG LDO ADJ 500MA 8-SOIC
ManufacturerAnalog Devices Inc
SeriesanyCAP®
ADP3334ARZ datasheet
 


Specifications of ADP3334ARZ

Design ResourcesBroadband Low EVM Direct Conversion Transmitter (CN0134) Broadband Low EVM Direct Conversion Transmitter Using LO Divide-by-2 Modulator (CN0144)Regulator TopologyPositive Adjustable
Voltage - Output1.5 ~ 10 VVoltage - Input2.6 ~ 11 V
Voltage - Dropout (typical)0.2V @ 500mANumber Of Regulators1
Current - Output500mAOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
Primary Input Voltage11VOutput Voltage Adjustable Range1.5V To 10V
Dropout Voltage Vdo200mVNo. Of Pins8
Output Current500mAOperating Temperature Range-40°C To +85°C
Lead Free Status / RoHS StatusLead free / RoHS CompliantCurrent - Limit (min)-
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FEATURES
High Accuracy over Line and Load:
1.8% over Temperature
500 mA Current Capability
Ultralow Dropout Voltage
Requires Only C
= 1.0 F for Stability
O
anyCAP = Stable with Any Type of Capacitor
(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: < 1.0 A (Typ)
2.6 V to 11 V Supply Range
1.5 V to 10 V Output Range
–40 C to +85 C Ambient Temperature Range
APPLICATIONS
Cellular Phones
TFT LCD Modules
Camcorders, Cameras
Networking Systems, DSL/Cable Modems
Cable Set-Top Boxes
DSP Supplies
Personal Digital Assistants
GENERAL DESCRIPTION
The ADP3334 is a member of the ADP333x family of precision
low dropout anyCAP voltage regulators. The ADP3334 operates
with an input voltage range of 2.6 V to 11 V and delivers a
continuous load current up to 500 mA. The novel anyCAP
architecture requires only a very small 1 µF output capacitor for
stability, and the LDO is insensitive to the capacitor’s equivalent
series resistance (ESR). This makes the ADP3334 stable with any
capacitor, including ceramic (MLCC) types for space restricted
applications.
The ADP3334 achieves exceptional accuracy of ±0.9% at room
temperature and ±1.8% over temperature, line, and load. The
dropout voltage of the ADP3334 is only 200 mV (typical) at
500 mA. This device also includes a safety current limit, ther-
mal overload protection, and a shutdown feature. In shutdown
mode, the ground current is reduced to less than 1 µA. The
ADP3334 has low quiescent current of 90 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. 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 companies.
High Accuracy, Low I
Adjustable Low Dropout Regulator
0.9% @ 25 C,
IN
SD
The ADP3334 is available in three different package options:
1. Excellent thermal capability, space saving 3 mm
2. Popular low profile MSOP-8.
3. Traditional thermal enhanced SOIC-8.
V
IN
C
IN
1 F
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
, anyCAP
Q
ADP3334
FUNCTIONAL BLOCK DIAGRAM
Q1
ADP3334
THERMAL
PROTECTION
CC
g
DRIVER
m
BAND GAP
REF
GND
ADP3334
I N
OUT
I N
OUT
R1
C
NR
FB
SD
GND
R2
OFF
ON
Figure 1. Typical Application Circuit
www.analog.com
© 2003 Analog Devices, Inc. All rights reserved.
®
OUT
FB
3 mm LFCSP.
V
OUT
C
OUT
1 F

ADP3334ARZ Summary of contents

  • Page 1

    FEATURES High Accuracy over Line and Load: 1.8% over Temperature 500 mA Current Capability Ultralow Dropout Voltage Requires Only C = 1.0 F for Stability O anyCAP = Stable with Any Type of Capacitor (Including MLCC) Current and Thermal Limiting ...

  • Page 2

    ADP3334–SPECIFICATIONS Parameter OUTPUT 4 Voltage Accuracy 4 Line Regulation Load Regulation Dropout Voltage Peak Load Current Output Noise 5 GROUND CURRENT In Regulation In Dropout In Shutdown SHUTDOWN Threshold Voltage SD Input Current Output Current in Shutdown NOTES 1 All ...

  • Page 3

    ABSOLUTE MAXIMUM RATSINGS* Input Supply Voltage . . . . . . . . . . . . . . . . . . . –0 +16 V Shutdown Input Voltage . . . . . . . ...

  • Page 4

    ADP3334–Typical Performance Characteristics 2.202 V = 2.2V OUT 2.201 L 2.200 2.199 150mA 2.198 2.197 300mA 2.196 2.195 500mA 2.194 INPUT VOLTAGE – V TPC 1. Line Regulation Output Voltage vs. Supply ...

  • Page 5

    V = 2.2V OUT R = 4.4 2.180 2.170 3.500 3.000 40 80 140 180 TIME – s TPC 10. Line Transient Response 2.3 2.2 2.1 400 V = 2.2V 200 ...

  • Page 6

    ADP3334 THEORY OF OPERATION The new anyCAP LDO ADP3334 uses a single control loop for regulation and reference functions. The output voltage is sensed by a resistive voltage divider consisting of R1 and R2 that is varied to provide the ...

  • Page 7

    To have the lowest possible sensitivity of the output voltage to temperature variations important that the value of the parallel resistance of R1 and R2 be kept as close as possible to 50 kW. ¥ ...

  • Page 8

    ADP3334 Current and thermal limit protections are intended to protect the device against accidental overload conditions. For normal operation, device power dissipation should be externally limited so that junction temperatures will not exceed 150°C. Calculating Junction Temperature Device power dissipation ...

  • Page 9

    The solder mask opening should be about 120 microns (4.7 mils) larger than the pad size resulting in a minimum 60 micron (2.4 mils) clearance between the pad and the solder mask. 4. The paste mask opening is typically ...

  • Page 10

    ADP3334 8-Lead Standard Small Outline Package [SOIC] Narrow Body (RN-8) Dimensions shown in millimeters and (inches) 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5.80 (0.2284) 3.80 (0.1497 1.27 (0.0500) 1.75 (0.0688) BSC 1.35 (0.0532) 0.25 ...

  • Page 11

    Revision History Location 3/03—Data Sheet changed from REV REV. B. Edits to Specifications . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 12

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