ADP3300ART-32 AD [Analog Devices], ADP3300ART-32 Datasheet

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ADP3300ART-32

Manufacturer Part Number
ADP3300ART-32
Description
High Accuracy anyCAP 50 mA Low Dropout Linear Regulator
Manufacturer
AD [Analog Devices]
Datasheet
a
anyCAP is a registered trademark of Analog Devices Inc.
GENERAL DESCRIPTION
The ADP3300 is a member of the ADP330x family of precision
low dropout anyCAP™ voltage regulators. The ADP3300
stands out from conventional LDOs with a novel architecture
and an enhanced process. Its patented design requires only a
0.47 µF output capacitor for stability. This device is stable with
any capacitor, regardless of its ESR (Equivalent Series Resistance)
value, including ceramic types (MLCC) for space restricted appli-
cations. The ADP3300 achieves exceptional accuracy of ±0.8%
at room temperature and ± 1.4% overall accuracy over tempera-
ture, line and load regulations. The dropout voltage of the
ADP3300 is only 80 mV (typical) at 50 mA.
The ADP3300 operates with a wide input voltage range from
3.0 V to 12 V and delivers a load current in excess of 50 mA. It
features an error flag that signals when the device is about to
lose regulation or when the short circuit or thermal overload
protection is activated. Other features include shutdown and
optional noise reduction capabilities. The ADP330x anyCAP™
50 mA Low Dropout Linear Regulator
LDO family offers a wide range of output voltages and output
current levels from 50 mA to 200 mA:
ADP3301 (100 mA)
ADP3302 (100 mA, Dual Output)
ADP3303 (200 mA)
ERR
SD
IN
V
IN
0.47 F
Q2
C1
FUNCTIONAL BLOCK DIAGRAM
PROTECTION
High Accuracy anyCAP
THERMAL
5
IN
3
ADP3300-5
OFF
ON
OUT
DRIVER
GND
NR
1
GND
Q1
2
4
6
R1
330kΩ
BANDGAP
CC
E
ADP3300
Gm
OUT
ADP3300
REF
C2
0.47 F
V
OUT
R1
R2
= +5V
OUT
®

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ADP3300ART-32 Summary of contents

Page 1

GENERAL DESCRIPTION The ADP3300 is a member of the ADP330x family of precision low dropout anyCAP™ voltage regulators. The ADP3300 stands out from conventional LDOs with a novel architecture and an enhanced process. Its patented design requires only a ...

Page 2

ADP3300–SPECIFICATIONS Parameter Symbol OUTPUT VOLTAGE V OUT ACCURACY ∆V LINE REGULATION ∆V ∆V LOAD REGULATION ∆I GROUND CURRENT I GND GROUND CURRENT I GND IN DROPOUT DROPOUT VOLTAGE V DROP SHUTDOWN THRESHOLD V THSD SHUTDOWN PIN I SDIN INPUT CURRENT ...

Page 3

... ADP3300ART-3 3.0 V ADP3300ART-3.2 3.2 V ADP3300ART-3.3 3.3 V ADP3300ART-5 5.0 V Contact the factory for the availability of other output 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 ADP3300 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...

Page 4

ADP3300–Typical Performance Characteristics 3.202 I = 0mA L 3.201 3.200 I = 10mA L 3.199 V = 3.2V OUT 3.198 I = 50mA L 3.197 3.196 3 INPUT VOLTAGE – ...

Page 5

V = 3.2V OUT 3.210 3.200 3.190 R = 3.2kΩ 0.47µF 3.180 100 120 140 160 180 200 TIME – µs 3.220 V = 3.2V OUT ...

Page 6

ADP3300 THEORY OF OPERATION The new anyCAP™ LDO ADP3300 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 ADP3300 is protected against damage due to excessive power dissipation by its thermal overload protection circuit, which limits the die temperature to a maximum of 165°C. Under extreme conditions (i.e., high ambient temperature and high power ...

Page 8

ADP3300 Constant Dropout Post Regulator The circuit in Figure 24 provides high precision with low dropout for any regulated output voltage. It significantly reduces the ripple from a switching regulator while providing a constant V = 2.5V TO 3.5V IN ...

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