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ADP3342JRM-REEL
Ultralow, IQ, anyCAP® Low Dropout Regulator
REV.C
Ultralow, IQ, anyCAP
Low Dropout Regulator
FEATURES
Accuracy over line and load: �4.0% @ 25�C,�5% over temperature
Ultralow dropout voltage: 190 mV (Typ) @ 300 mA
Requires only CO = 1.0 �F for stability
anyCAP architecture stable with any type of capacitor
(including MLCC)
Current and thermal limiting
Low shutdown current: < 2 �A
1.7 V < VIN < 6 V
2.8 V < VCC < 6 V
VOUT = 1.2 V �5%
–40�C to +100�C ambient temperature range
Ultrasmall thermally enhanced 8-lead MSOP package
APPLICATIONS
Notebook PCs
Desktop PCs
FUNCTIONAL BLOCK DIAGRAM
GENERAL DESCRIPTIONThe ADP3342 is a unique member of the ADP330x family of
precision low dropout anyCAP voltage regulators. The ADP3342
operates with an input voltage range of 1.7V to 6V and delivers a
continuous load current up to 300mA. In order to support the
ability to regulate from such a low input voltage, the power rail to
the IC, VCC, has been split off from the main power rail, VIN,
from which the output is powered.
The ADP3342 stands out from the conventional LDOs with
the lowest thermal resistance of any MSOP-8 package and an
enhanced process that enables it to offer performance advan-
tages beyond 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 dropout voltage of the
ADP3342 is only 190 mV (typical) at 300 mA. This device also
includes a safety current limit, thermal overload protection, and
a shutdown control pin.
Figure 1.Typical Application Circuit
ADP3342–SPECIFICATIONS1, 2(VCC = 3.0 V, VIN = 1.8 V, CIN = COUT = 1 �F, TA = 0�C to 100�C, and
TA = –40�C to +100�C, unless otherwise noted.)THERMAL PROTECTION
NOTESAll limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC) methods.Ambient temperature of 100∞C corresponds to a junction temperature of 125∞C under typical full load test conditions.VPWRGDL, VPWRGDH: Power good output voltages. Guaranteed by design and characterization.TD1: Delay time from VOUT crossing 1 V to PWRGD high. Guaranteed by design.TD2: Delay time from SD high to PWRGD high. Guaranteed by design.TD3: Delay time between SD low to PWRGD low. Guaranteed by design.
Specifications subject to change without notice.
CAUTIONESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADP3342 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
ABSOLUTE MAXIMUM RATINGS*Input Supply Voltage . . . . . . . . . . . . . . . . . . . –0.3 V to +13 V
Shutdown Input Voltage . . . . . . . . . . . . . . . . –0.3 V to +13 V
Power Dissipation . . . . . . . . . . . . . . . . . . . . Internally Limited
Operating Ambient Temperature Range . . . –40°C to +100°C
Operating Junction Temperature Range . . . –40°C to +150°C
�JA (2-Layer Board) . . . . . . . . . . . . . . . . . . . . . . . . . . 205°C/W
�JA (4-Layer Board) . . . . . . . . . . . . . . . . . . . . . . . . . .142°C/W
�JC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56°C/W
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . . 300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability. Absolute maximum
ratings apply individually only, not in combination. Unless otherwise specified, all
other voltages are referenced to GND.
PIN CONFIGURATION
PIN FUNCTION DESCRIPTIONS
ORDERING GUIDE*Z = Pb-free part.
ADP3342–Typical Performance CharacteristicsTPC 1.Line Regulation Output
Voltage vs. Supply Voltage
TPC 4.Ground Current vs.
Load Current
TPC 7.Dropout Voltage vs.
Output Current
TPC 2.Output Voltage vs.
Load Current
TPC 5.Output Voltage Variation
vs. Junction Temperature
TPC 8.Ground Current @ 300 mA
Load vs. Ambient Temperature
TPC 3.Ground Current vs.
Supply Voltage
TPC 6.Ground Current vs.
Junction Temperature
TPC 9.Power-Up/Power-Down
TPC 10.Line Transient Response
TPC 13.Load Transient Response
TPC 16.Turn On Delay
TPC 11.Line Transient Response
TPC 14.Short Circuit Current
TPC 17.Turn Off Delay
TPC 12.Load Transient Response
TPC 15.Power-On/Power-Off
Response from Shutdown
TPC 18.Power-On/Power-Off
Response from VCC
ADP3342TPC 19.Power-On/Power-Off
Response from VIN
TPC 22.Output Noise Density
TPC 25.Current Limiting from VC
TPC 20.Power Supply
Ripple Rejection
TPC 23.Thermal Protection
TPC 21.RMS Noise vs. CL
(10 Hz to 100 Hz)
TPC 24.Current Limit vs. VIN
