Products > Integrated Circuits (ICs) > Power Management ICs > LT1175MPS8#PBF

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LDO Regulator Neg -3.8V to -19.3V 0.5A Automotive 8-Pin SOIC N Tube

Manufacturer : Analog Devices, Inc
Package/Case : SOP-8
Product Categories : Voltage Regulators
Datasheet: LT1175MPS8#PBF Datasheet (PDF)
RoHs Status: Pb-free Halide free
In-stock: 12


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LT1175MPS8#PBF Product Details

The LT1175MPS8#PBF is a negative micropower low dropout regulator. It features 45μA quiescent current, dropping to 10μA in shutdown. A new reference amplifier topology gives precision DC characteristics along with the ability to maintain good loop stability with an extremely wide range of output capacitors. Very low dropout voltage and high efficiency are obtained with a unique power transistor anti-saturation design. Adjustable and fixed 5V versions are available.

Several new features make the LT1175MPS8#PBF very user-friendly. The SHDN pin can interface directly to either positive or negative logic levels. Current limit is user-selectable at 200mA, 400mA, 600mA and 800mA. The output can be forced to reverse voltage without damage or latch-up. Unlike some earlier designs, the increase in quiescent current during a dropout condition is actively limited.

The LT1175MPS8#PBF has complete blowout protection with current limiting, power limiting and thermal shutdown. Special attention was given to the problem of high temperature operation with micropower operating currents, preventing output voltage rise under no-load conditions. The LT1175MPS8#PBF is available in 8-pin PDIP and SO packages, 3-lead SOT-223 as well as 5-pin surface mount DD and through-hole TO-220 packages. The 8-pin SO package is specially constructed for low thermal resistance.


  • Operating Current: 45μA
  • Adjustable Current Limit
  • Low Voltage Linear Dropout Characteristics
  • Stable with Wide Range of Output Capacitors
  • Shutdown Current: 10μA
  • Positive or Negative Shutdown Logic
  • Fixed 5V and Adjustable Versions
  • Tolerates Reverse Output Voltage
  • Available in 8-pin PDIP and SO Packages, 3-lead SOT-223, 5-Pin Surface Mount DD and Through-Hole TO-220 Packages


  • Analog Systems
  • Modems
  • Instrumentation
  • A/D and D/A Converters
  • Interface Drivers
  • Battery-Powered Systems

LT1175MPS8#PBF Pinout
(Picture: Pinout)

LT1175MPS8#PBF Block Diagram
(Picture: Diagram)

Technical Parameters

  • Output Configuration
  • Negative
  • Output Type
  • Adjustable
  • Number of Regulators
  • 1
  • Voltage Input (Max)
  • -20V
  • Voltage Output (Min/Fixed)
  • -3.8V
  • Voltage Output (Max)
  • -19.3V
  • Voltage Dropout (Max)
  • 0.7V @ 500mA
  • Current Output
  • 500mA
  • Current Quiescent (Iq)
  • 80??A
  • Control Features
  • Current Limit, Enable
  • Operating Temperature
  • -55??C ~ 125??C
  • Mounting Type
  • Surface Mount
  • Package / Case
  • 8-SOIC (0.154, 3.90mm Width)
  • Supplier Device Package
  • 8-SOIC

LT1175MPS8#PBF Datasheet

  • LT1175 Technical Documentation/Data sheet

LT1175MPS8#PBF Equivalent Parts

For the LT1175MPS8#PBF component, you may consider these replacement and alternative parts.

Models Manufacturer Package/Case Description
LT1175CQ#PBF ADI TO-263 LDO Regulator Neg -3.8V to -19.3V 0.5A Automotive 6-Pin(5+Tab) DDPAK Tube
LT1175CS8#PBF ADI SOP-8 LDO Regulator Neg -3.8V to -19.3V 0.5A Automotive 8-Pin SOIC N Tube
LT1175CT#PBF ADI TO-220 LDO Regulator Neg -3.8V to -19.3V 0.5A Automotive 5-Pin(5+Tab) TO-220 Tube

LT1175MPS8#PBF 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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