ADP3333ARM-18 AD [Analog Devices], ADP3333ARM-18 Datasheet

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ADP3333ARM-18

Manufacturer Part Number
ADP3333ARM-18
Description
High Accuracy Ultralow IQ, 300 mA, anyCAP Low Dropout Regulator
Manufacturer
AD [Analog Devices]
Datasheet
a
anyCAP is a registered trademark of Analog Devices, Inc.
GENERAL DESCRIPTION
ADP3333 is a member of the ADP333x family of precision low
dropout 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 F output capacitor for stability. This
device is insensitive to output capacitor Equivalent Series Resis-
tance (ESR), and is stable with any good quality capacitor,
including ceramic (MLCC) types for space-restricted applica-
tions. ADP3333 achieves exceptional accuracy of 0.8% at
room temperature and 1.8% over temperature, line and load
variations. The dropout voltage of 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 A. The ADP3333 has ultralow quiescent current, 70 A (typ)
in light load situations.
O
High Accuracy Ultralow I
anyCAP
SD
IN
V
IN
1 F
C
PROTECTION
IN
FUNCTIONAL BLOCK DIAGRAM
®
THERMAL
Low Dropout Regulator
ON
OFF
I N
ADP3333
SD
DRIVER
GND
Q1
GND
OUT
CC
NC
NC = NO CONNECT
BANDGAP
ADP3333
ADP3333
g
Q
m
REF
, 300 mA,
C
1 F
OUT
V
R1
R2
OUT
OUT

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ADP3333ARM-18 Summary of contents

Page 1

O GENERAL DESCRIPTION ADP3333 is a member of the ADP333x family of precision low dropout anyCAP voltage regulators. Pin-compatible with the MAX8860, the ADP3333 operates with a wider input voltage range of 2 and delivers ...

Page 2

ADP3333–SPECIFICATIONS Parameter Symbol OUTPUT 2 Voltage Accuracy V 2 Line Regulation Load Regulation Dropout Voltage V Peak Load Current I Output Noise V GROUND CURRENT In Regulation I In Dropout In Shutdown I SHUTDOWN Threshold Voltage V SD Input Current ...

Page 3

... V RM-8 (MSOP-8) ADP3333ARM-2.5 2.5 V RM-8 (MSOP-8) ADP3333ARM-2.77 2.77 V RM-8 (MSOP-8) ADP3333ARM RM-8 (MSOP-8) ADP3333ARM-3.15 3.15 V RM-8 (MSOP-8) ADP3333ARM-3.3 3.3 V RM-8 (MSOP-8) ADP3333ARM RM-8 (MSOP-8) 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 ADP3333 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges ...

Page 4

ADP3333 –Typical Performance Characteristics 2.502 V = 2.5V OUT 0mA 2.500 2.498 100mA 2.496 2.494 200mA 2.492 300mA 2.490 2.488 INPUT VOLTAGE – 2.0 ...

Page 5

V = 2.5V OUT 2. 8 2.51 L 2.50 2.49 3.50 3. 140 180 TIME – 2 2.5V OUT ...

Page 6

ADP3333 THEORY OF OPERATION The new anyCAP LDO ADP3333 uses a single control loop for regulation and reference functions see (Figure 2). The output voltage is sensed by a resistive voltage divider consisting of R1 and R2 which is varied ...

Page 7

Calculating Junction Temperature Device power dissipation is calculated as follows OUT LOAD Where I and I are load current and ground current, V LOAD GND and V are the input and output voltages respectively. ...

Page 8

ADP3333 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead Mini/micro SOIC Package [Mini_SO] (RM-8) 0.122 (3.10) 0.114 (2.90 0.122 (3.10) 0.199 (5.05) 0.114 (2.90) 0.187 (4.75 PIN 1 0.0256 (0.65) BSC 0.120 (3.05) 0.120 (3.05) ...

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