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ADP3342JRM-REEL7
Ultralow, IQ, anyCAP Low Dropout Regulator
REV.0
Ultralow, IQ, anyCAP
Low Dropout Regulator
FEATURES
Accuracy Over Line and Load: �4.0% @ 25�C,�5% Over Temperature
Ultralow Dropout Voltage: 300 mV (Typ) @ 300 mA
Requires Only CO = 1.0 �F for Stability
anyCAP = 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
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 advantages 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.
FUNCTIONAL BLOCK DIAGRAMFigure 1.Typical Application Circuit
anyCAP is a registered trademark of Analog Devices, Inc.
ADP3342–SPECIFICATIONS
(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.)OPERATING CURRENTS
THERMAL PROTECTION
NOTESAmbient temperature of 100°C corresponds to a junction temperature of 125°C under typical full load test conditions.VPWRGDL, VPWRGDH,: Powergood 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.
PIN CONFIGURATION
PIN FUNCTION DESCRIPTIONS
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 +125°C
�JA (2-layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157°C/W
�JA (4-layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121°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
*This is a stress rating only; operation beyond these limits can cause the device
to be permanently damaged.
ORDERING GUIDE*Contact the factory for other output voltage options.
ADP3342TPC 1.Line Regulation Output Voltage
vs. Supply Voltage
TPC 4.Ground Current vs. Load Current
TPC 7.Dropout Voltage vs. Output
Current
–Typical Performance CharacteristicsTPC 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 VCCTPC 20.Power Supply RippleRejection
TPC 23. Thermal Protection
TPC 21.RMS Noise vs. CL
(10 Hz–100 Hz)
TPC 24.Current Limit vs. VIN
