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LDO Regulator Neg -0.5V to -5V -0.3A 8-Pin LFCSP EP T/R

Manufacturer : Analog Devices, Inc
Package/Case : LFCSP-8
Product Categories : Voltage Regulators - Linear
Datasheet: ADP7183ACPZN-R7 Datasheet (PDF)
RoHs Status: Pb-free Halide free
In-stock: 1000


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ADP7183ACPZN-R7 Product Details

The ADP7183ACPZN-R7 is a complementary metal oxide semiconductor (CMOS), low dropout (LDO) linear regulator that operates from −2.0 V to −5.5 V and provides up to −300 mA of output current. This LDO regulator is ideal for regulation of high performance analog and mixed-signal circuits operating from −0.5 V down to −4.5 V. Using an advanced proprietary architecture, the ADP7183ACPZN-R7 provides high PSRR and low noise, and it achieves excellent line and load transient response with a small 4.7 μF ceramic output capacitor.

The ADP7183ACPZN-R7 is available in 15 fixed output voltage options. The following voltages are available from stock: −0.5 V, −1.0 V,−1.2 V, −1.5 V, −1.8 V, −2.0 V, −2.5 V, −3.0 V, and −3.3 V. Additional voltages available by special order are −0.8 V, −0.9 V, −1.3 V, −2.8 V, −4.2 V, and −4.5 V. An adjustable version is also available that allows output voltages that range from −0.5 V to −VIN + 0.5 V with an external feedback divider.

The enable logic feature is capable of interfacing with positive or negative logic levels for maximum flexibility.

The ADP7183ACPZN-R7 regulator output noise is 4 μV rms independent of the output voltage. The ADP7183ACPZN-R7 is available in an 8-lead, 2 mm × 2 mm LFCSP, making it not only a very compact solution but also providing excellent thermal performance for applications requiring up to −300 mA of output current in a small, low profile footprint.



  • Input voltage range: −2.0 V to −5.5 V
  • Maximum output current: −300 mA
  • Fixed output voltage options: −0.5 V to −4.5 V
  • Adjustable output from −0.5 V to −VIN + 0.5 V 
  • Low output noise: 4 µV rms from 100 Hz to 100 kHz 
  • Noise spectral density: 20 nV/√Hz, 10 kHz to 1 MHz
  • Power supply rejection ratio (PSRR) at −300 mA load
    • 75 dB typical at 10 kHz 
    • 62 dB typical at 100 kHz
    • 40 dB typical at 1 MHz
  • Low dropout voltage: −130mV typical at −300 mA load
  • Initial output voltage accuracy (VOUT): ±0.5% at IOUT = −10 mA
  • Output voltage accuracy over line, load, and temperature: ±2.6%
  • Operating supply current (IGND): −0.6 mA typical at no load
  • Low shutdown current: −2 µA typical at VIN = −5.5 V
  • Stable with small 4.7 µF ceramic input and output capacitor
  • Positive or negative enable logic
  • Current-limit and thermal overload protection
  • 8-lead, 2 mm × 2 mm LFCSP package
  • Supported by ADIsimPOWER voltage regulator design tool


  • Regulation to noise sensitive applications: analog-to-digital converters (ADCs), digital-to-analog converters (DACs), precision amplifiers
  • Communications and infrastructure
  • Medical and healthcare
  • Industrial and instrumentation

ADP7183ACPZN-R7 Pinout
(Picture: Pinout)

ADP7183ACPZN-R7 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Output Configuration
  • Negative
  • Output Type
  • Adjustable
  • Number of Regulators
  • 1
  • Voltage Input (Max)
  • -5.5V
  • Voltage Output (Min/Fixed)
  • -0.5V
  • Voltage Output (Max)
  • -5V
  • Voltage Dropout (Max)
  • 0.22V @ 300mA
  • Current Output
  • 300mA
  • Current Quiescent (Iq)
  • 900??A
  • Current Supply (Max)
  • 7mA
  • PSRR
  • 85dB ~ 40dB (1kHz ~ 1MHz)
  • Control Features
  • Enable
  • Protection Features
  • Current Limit, Thermal Overload
  • Operating Temperature
  • -40??C ~ 125??C (TJ)
  • Mounting Type
  • Surface Mount
  • Package / Case
  • 8-UFDFN Exposed Pad, CSP
  • Supplier Device Package
  • 8-LFCSP (2x2)

ADP7183ACPZN-R7 Datasheet

  • ADP7183 Technical Documentation/Data sheet

ADP7183ACPZN-R7 Related Products

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Analog Devices, Inc

Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...

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