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NCP731ADN330R2G

38 V, 150 mA

LDO Regulator

The NCP731ADN330R2G is a ldo regulator from onsemi. 38 V, 150 mA. View the full NCP731ADN330R2G datasheet below including key specifications, pinout, absolute maximum ratings.

Manufacturer

onsemi

Category

Linear Regulators (LDO)

Package

MSOP8 EP 3x3

Key Specifications

ParameterValue
PackagingCut Tape
Standard Pack Qty3000

Overview

Part: NCP731

Type: LDO Regulator, Low Noise

Key Specs:

  • Operating Input Voltage Range: 2.7 V to 38 V
  • Output Current: 150 mA
  • Very Low Noise: 8 µVRMS (10 Hz to 100 kHz)
  • Low Quiescent Current: 48 µA typ.
  • Low Dropout: 290 mV typ. at 150 mA
  • Output Voltage Accuracy: ±0.6% (25°C)

Features:

  • Operating Input Voltage Range: 2.7 V to 38 V
  • Output Voltage Adjustable Range: 1.2 V to 35 V
  • Fixed Output Voltage Versions: 3.3 V and 5.0 V
  • Very Low Noise: 8 µVRMS (10 Hz to 100 kHz)
  • Low Quiescent Current: 48 µA typ.
  • Low Shutdown Current: 100 nA typ.
  • Low Dropout: 290 mV typ. at 150 mA
  • Output Voltage Accuracy ±0.6% (25°C)
  • Programmable Soft Start Circuit
  • Stable with Small 1 µF Ceramic Capacitors
  • Over-Current and Thermal Shutdown Protections
  • Available in Micro-8 EP Package
  • Device is Pb-Free and RoHS Compliant

Applications:

  • Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
  • Post DC-DC Converter Regulation and Ripple Filtering
  • Test and Measurement
  • Industrial Instrumentation
  • Metering
  • Battery Powered Devices

Package:

  • Micro-8 EP Package
  • MSOP8 EP: 3x3 CASE 846AT

Features

  • Operating Input Voltage Range: 2.7 V to 38 V
  • Output Voltage Adjustable Range: 1.2 V to 35 V
  • Fixed Output Voltage Versions: 3.3 V and 5.0 V (other voltage versions on request)
  • Very Low Noise: 8 -VRMS (10 Hz to 100 kHz)
  • Low Quiescent Current: 48 -A typ.
  • Low Shutdown Current: 100 nA typ.
  • Low Dropout: 290 mV typ. at 150 mA
  • Output Voltage Accuracy ±0.6% (25°C)
  • Programmable Soft Start Circuit
  • Stable with Small 1 -F Ceramic Capacitors
  • Over-Current and Thermal Shutdown Protections
  • Available in Micro-8 EP Package
  • Device is Pb-Free and RoHS Compliant

Applications

  • Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
  • Post DC-DC Converter Regulation and Ripple Filtering
  • Test and Measurement
  • Industrial Instrumentation
  • Metering
  • Battery Powered Devices

MSOP8 EP 3x3 CASE 846AT

Pin Configuration

NCP731ADN330R2G Pinout

Package: MSOP8 EP (3x3mm)

Pin NumberPin NameTypeDescription
1OUTOLDO output pin
2ADJ/FFIAdjust input pin (ADJ version) or Feed forward capacitor pin (FIX version)
3NC—Not internally connected; may be left unconnected or connected to GND
4GNDPGround pin
5ENIEnable input pin (high = enable, low = disable); connect to IN if not used
6SSISoft-start input pin; connect CSS capacitor to set soft-start time or leave floating if unused
7NC—Not internally connected; may be left unconnected or connected to GND
8INIPower supply input pin
EPEPADPExposed pad; must be connected to GND

Notes

  • The NCP731ADN330R2G is a fixed-output (FIX) variant; pin 2 functions as FF (feed forward capacitor pin), not ADJ.
  • Pins 3 and 7 are not internally connected and may be left floating or tied to GND.
  • The exposed pad (EPAD) must be connected to ground for proper thermal performance.
  • Pin 5 (EN) has no internal pull-up or pull-down; if enable control is not required, connect to IN pin.

Absolute Maximum Ratings

RatingValueUnit
IN Voltage (Note 1)-0.3 to 40V
OUT VoltageADJ Version and
FIX Versions with VOUT-NOM > 6.0 V
FIX Versions with VOUT-NOM
≤ 6.0 V		VOUT-0.3 to [(VIN
+ 0.3) or 40;
whichever is lower]
-0.3 to [(VIN
+ 0.3) or 7;
whichever is lower]		V
EN Voltage-0.3 to (VIN
+ 0.3)		V
ADJ/FF Voltage-0.3 to 5.5V
SS Voltage-0.3 to 5.5V
Output CurrentInternally limitedmA
Maximum Junction Temperature150°C
Storage Temperature-55 to 150°C
ESD Capability, Human Body Model (Note 2)2000V
ESD Capability, Charged Device Model (Note 2)1000V

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. ESD Human Body Model tested per ANSI/ESDA/JEDEC JS-001, EIA/JESD22-A114

  1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.

  2. This device series incorporates ESD protection and is tested by the following methods: ESD Charged Device Model tested per ANSI/ESDA/JEDEC JS-002, EIA/JESD22-C101

Thermal Information

  • -
    -
    Characteristic
  • -
    -
    Thermal Resistance, Junction
    to
    Air
  • -
    -
    Thermal Resistance, Junction
    to
    Case (top)
  • -
    -
    Thermal Resistance, Junction
    to
    Case (bottom)
  • Thermal Characterization Parameter, Junction
    to
    Case (top)
  • Thermal Characterization Parameter, Junction
    to
    Board [FEM]
  1. Measured according to JEDEC board specification (board 2S2P, Cu layer thickness 1 oz, Cu area 645mm2, no airflow). Detailed description of the board can be found in JESD51-7.
Parameter
Test Conditions		SymbolMinTypMaxUnit
Recommended Input VoltageVIN2.7-38V
Output Voltage Accuracy (Note 5)TJ = +25°CVOUT-0.6-0.6%
VIN = VOUT-NOM + 1 V to 38 V
IOUT = 0.1 mA to 150 mA
TJ = -40°C to +85°C		-1.0-1.0
VIN = VOUT-NOM + 1 V to 38 V
IOUT = 0.1 mA to 150 mA
TJ = -40°C to +125°C		-1.5-1.5
Output Voltage Range (Note 6)VOUT-ADJVADJ-35V
ADJ Reference Voltage (Note 6)VADJ-1.2-V
ADJ Input Current (Note 6)VADJ = 1.2 VIADJ-0.050.010.05A
Quiescent CurrentVIN = VOUT-NOM + 1 V to 38 V, IOUT = 0 mAIQ-48100A
Ground CurrentIOUT = 150 mAIGND-400-A
Shutdown CurrentVEN = 0 V, VIN = 38 VISHDN-0.071.0A
Output Current LimitVOUT = VOUT-NOM
- 100 mV		IOLIM210295450mA
Short Circuit CurrentVOUT = 0 VIOSC210365450mA
Dropout Voltage (Note 7)IOUT = 150 mAVDO-230480mV
Power Supply Ripple RejectionVIN = VOUT-NOM + 2 V
IOUT = 10 mA		10 HzPSRR-80-dB
10 kHz-70-
100 kHz-42-
1 MHz-48-
Output Noise Voltagef = 10 Hz to 100 kHz, ADJ version,
VOUT = VADJ		VN-8.1-
VRMS
f = 10 Hz to 100 kHz, ADJ version,
VOUT = 3.3 V, CFF = 10 nF, R1 = 47.3 k,
R2 = 27 k		VN-15-
f = 10 Hz to 100 kHz, ADJ version,
VOUT = 5 V, CFF = 10 nF, R1 = 85.5 k,
R2 = 27 k		VN-20-
EN ThresholdVEN risingVEN-TH0.70.91.1V
EN HysteresisVEN fallingVEN-HY0.020.10.2V
EN Input CurrentVEN = 30 V, VIN = 30 VIEN-10.151A
Internal UVLO ThresholdVIN voltage rising2.432.552.69V
Internal UVLO HysteresisVIN voltage fallingVUVLO-HY0.010.040.07V
SS Charging CurrentVSS = 0 VISS-910-nA
SS High VoltageSS pin floatingVSS-HI-2.4-V
SS Time (Note 8)CSS = 10 nFtSS-10nF-14-ms
CSS not connectedtSS-0nF-0.5-
Thermal Shutdown TemperatureTemperature rising from TJ = +25°CTTSD-170-°C
Thermal Shutdown HysteresisTemperature falling from TSDTTSDH-10-°C

Table 3. ELECTRICAL CHARACTERISTICS VIN = VOUT-NOM + 1 V and VIN ≥ 2.7 V, VEN = 1.2 V, IOUT = 1 mA, CIN = COUT = 1.0 -F (Note 4), CSS = 0 nF, CFF = 0 nF, TJ = -40°C to 125°C, ADJ tied to OUT, unless otherwise specified.

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions.

  1. Effective capacitance, including the effect of DC bias, tolerance and temperature. See the Application Information section for more information.

  2. Output voltage accuracy of ADJ version is guaranteed when ADJ pin is connected to OUT pin. The VOUT-NOM is then equal to VADJ.

  3. Applicable only to ADJ version.

  4. Dropout voltage is measured when the output voltage falls 100 mV below the nominal output voltage. ADJ version is measured with ADJ pin connected to resistor divider which sets VOUT to 5.0 V. Limits are valid for all voltage versions.

  5. Startup time is the time from EN assertion to point when output voltage is equal to 95% of VOUT-NOM.

Typical Application

  • Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
  • Post DC-DC Converter Regulation and Ripple Filtering
  • Test and Measurement
  • Industrial Instrumentation
  • Metering
  • Battery Powered Devices

MSOP8 EP 3x3 CASE 846AT

Ordering Information

MPNPackageTemperature RangePacking
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