ADP7105ACPZ-3.3-R7
Analog Devices Inc.United States

ADP7105ACPZ-3.3-R7

ActiveVoltage Regulators - Linear8-Lead LFCSP

IC REG LINEAR 3.3V 500MA 8LFCSP

The ADP7105ACPZ-3.3-R7 is a 20V input, 500mA output low-noise LDO linear regulator with a fixed 3.3V output, housed in an 8-lead LFCSP package, featuring soft start, power-good indication, and reverse current protection.Checked against the datasheet

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Technical parameters

Key specs

Output voltage3.3 V
Output current500 mAMax
Input voltage3.3 ~ 20 V
Dropout voltage350 mVMax
Quiescent current900 µATyp

Datasheet-verified parameters

22 items
ParameterValue and test conditionsSource
Output Voltage3.3 V
Maximum Output Current500 mA
Input Voltage Range3.3 V to 20 V
Dropout Voltage350 mV at 500 mA
Quiescent Current900 μA at VIN = 10 V, IOUT = 500 mA
Package8-Lead LFCSP (CP-8-5)
Operating Temperature Range-40°C to +125°C
GradeIndustrial
RoHS ComplianceRoHS Compliant
Output Noise15 µV rms for fixed output versions
PSRR60 dB at 10 kHz, VOUT = 3.3 V
Initial Accuracy±0.8%
Accuracy over line, load, and temperature-2% to +1%, T = -40°C to +125°C
Shutdown Current<50 µA at VIN = 12 V
Absolute Maximum Rating: VIN to GND-0.3 V to +22 V
Absolute Maximum Rating: VOUT to GND-0.3 V to +20 V
Storage Temperature Range-65°C to +150°C
Operating Junction Temperature Range-40°C to +125°C
Minimum Input and Output Capacitance0.7 μF, TA = -40°C to +125°C
Protection FeaturesReverse current protection, Foldback current-limit, Thermal overload protection
Soft StartProgrammable soft start for inrush current control
Power-Good IndicatorPower-good indicator
All parameters (22)ExpandCollapse
Power
Current - Output500mA
Current - Quiescent (Iq)900 µA
Current - Supply (Max)1.6 mA
Voltage Dropout (Max)0.35V @ 500mA
Voltage - Input (Max)20V
Voltage - Output (Max)-
Voltage - Output (Min/Fixed)3.3V
AC and DC characteristics
PSRR60dB ~ 50dB (10kHz ~ 100kHz)
Environment and package
Mounting TypeSurface Mount
Operating Temperature-40°C~125°C
PackageTape & Reel (TR); Cut Tape (CT); Digi-Reel®
Package / Case8-WFDFN Exposed Pad, CSP
Supplier Device Package8-LFCSP-WD (3x3)
Other
Base Product NumberADP7105
Control FeaturesEnable, Power Good, Soft Start
MfrAnalog Devices Inc.
Number of Regulators1
Output ConfigurationPositive
Output TypeFixed
Product StatusActive
Protection FeaturesOver Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Series-

Pinout and package

Figure 3. Pin Configuration, L…
Figure 3. Pin Configuration, L…
Package: 8-Lead LFCSP (CP-8-5)
PinNameFunctionSource
1VOUT: Regulated Output Voltage. Bypass VOUT to GND with a 1 μF or greater capacitor.
2SENSE/ADJ: Sense (SENSE). SENSE measures the actual output voltage at the load and feeds it to the error amplifier. This function applies to fixed voltage models only.
3GND: Ground.
4SS: Soft Start. A capacitor connected to this pin determines the soft start time.
5EN/UVLO: Enable Input (EN). Drive EN high to turn on the regulator; drive EN low to turn off the regulator. Programmable Undervoltage Lockout (UVLO).
6GND: Ground.
7PG: Power Good. This open-drain output requires an external pull-up resistor. If the part is in shutdown mode, current-limit mode, or thermal shutdown, or if VOUT falls below 90% of the nominal output voltage, PG immediately transitions low.
8VIN: Regulator Input Supply. Bypass VIN to GND with a 1 μF or greater capacitor.
EPADExposed Pad: The exposed pad on the bottom of the package enhances thermal performance and is electrically connected to GND inside the package. It is highly recommended that the exposed pad be connected to the ground plane on the board.

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