ADP3338AKC-33 AD [Analog Devices], ADP3338AKC-33 Datasheet

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ADP3338AKC-33

Manufacturer Part Number
ADP3338AKC-33
Description
High-Accuracy Ultralow IQ, 1 A, anyCAP Low Dropout Regulator
Manufacturer
AD [Analog Devices]
Datasheet
a
GENERAL DESCRIPTION
The ADP3338 is a member of the ADP33xx family of precision
low dropout anyCAP voltage regulators. The ADP3338 oper-
ates with an input voltage range of 2.7 V to 8 V and delivers a
load current up to 1 A. The ADP3338 stands out from the
conventional LDOs with a novel architecture and an enhanced
process that enables it to offer performance advantages and
higher output current than its competition. Its patented design
requires only a 1 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
ADP3338 achieves exceptional accuracy of ± 0.8% at room
temperature and ± 1.4% over temperature, line and load varia-
tions. The dropout voltage of the ADP3338 is only 190 mV
(typical) at 1 A. This device also includes a safety current limit
and thermal overload protection. The ADP3338 has ultralow
quiescent current 110 µA (typical) in light load situations.
anyCAP is a registered trademark of Analog Devices Inc.
High-Accuracy Ultralow I
IN
V
IN
PROTECTION
1 F
THERMAL
FUNCTIONAL BLOCK DIAGRAM
Low Dropout Regulator
IN
DRIVER
GND
Q1
ADP3338
GND
CC
Q
, 1 A, anyCAP
OUT
g
ADP3338
m
ADP3338
BANDGAP
REF
1 F
V
OUT
R1
R2
OUT
®

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ADP3338AKC-33 Summary of contents

Page 1

GENERAL DESCRIPTION The ADP3338 is a member of the ADP33xx family of precision low dropout anyCAP voltage regulators. The ADP3338 oper- ates with an input voltage range of 2 and delivers a load current up ...

Page 2

ADP3338–SPECIFICATIONS Parameter Symbol OUTPUT Voltage Accuracy V OUT Line Regulation Load Regulation Dropout Voltage V DROP Peak Load Current I LDPK Output Noise V NOISE GROUND CURRENT In Regulation I GND In Dropout I GND NOTES 1 All limits at ...

Page 3

... ADP3338AKC-2.5 2.5 V ADP3338AKC-2.85 2.85 V ADP3338AKC-3.3 3.3 V ADP3338AKC Contact the factory for other voltage options. CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADP3338 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges ...

Page 4

ADP3338 –Typical Performance Characteristics 2.515 V = 2.5V OUT 2.510 I = 0.5A L 2.505 2.500 2.495 2.490 10.5 12.5 2.5 4.5 6.5 8.5 INPUT VOLTAGE – 2.5V ...

Page 5

V = 2.5V OUT 2.51 OUT R = 2.5 LOAD 2.50 2.49 4.5 3.5 80 120 140 180 TIME – s 2.5 0.0 400m FULL SHORT SHORT 1 1.0 0.5 0.0 0.4 ...

Page 6

ADP3338 THEORY OF OPERATION The new anyCAP LDO ADP3338 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 which is varied to provide the ...

Page 7

THERMAL OVERLOAD PROTECTION The ADP3338 is protected against damage due to excessive power dissipation by its thermal overload protection circuit. Thermal protection limits the die temperature to a maximum of 160°C. Under extreme conditions (i.e., high ambient temperature and power ...

Page 8

ADP3338 0.146 (3.70) 0.130 (3.30) 0.033 (0.85) 0.026 (0.65) 0.067 (1.70) 0.060 (1.50) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 3-Lead Surface Mount KC (SOT-223) 0.124 (3.15) 0.116 (2.95) 4 0.287 (7.30) 0.264 (6.70 0.0905 (2.30) ...

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