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Product details

Parameters

Output options Fixed Output Iout (Max) (A) 0.4 Vin (Max) (V) 35 Vin (Min) (V) 5 Vout (Max) (V) 1.515 Vout (Min) (V) 1.485 Fixed output options (V) 1.5 Noise (uVrms) 0 Iq (Typ) (mA) 5.5 Load capacitance (Min) (µF) 100 Rating Space Regulated outputs (#) 1 Accuracy (%) 1 PSRR @ 100 KHz (dB) 0 Dropout voltage (Vdo) (Typ) (mV) 0 Operating temperature range (C) -55 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

CDIP (J) 16 135 mm² 19.65 x 6.92 LCCC (FK) 20 79 mm² 8.89 x 8.89 open-in-new Find other Linear regulators (LDO)

Features

  • Minimum VIN - VOUT Less Than 0.5V At 5A Load With External Pass Device
  • Equally Usable For Either Positive or Negative Regulator Design
  • Adjustable Low Threshold Current Sense Amplifier
  • Under And Over-Voltage Fault Alert With Programmable Delay
  • Over-Voltage Fault Latch With 100mA Crowbar Drive Output
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Description

The UC1834 family of integrated circuits is optimized for the design of low input-output differential linear regulators. A high gain amplifier and 200mA sink or source drive outputs facilitate high output current designs which use an external pass device. With both positive and negative precision references, either polarity of regulator can be implemented. A current sense amplifier with a low, adjustable, threshold can be used to sense and limit currents in either the positive or negative supply lines.

In addition, this series of parts has a fault monitoring circuit which senses both under and over-voltage fault conditions. After a user defined delay for transient rejection, this circuitry provides a fault alert output for either fault condition. In the over-voltage case, a 100mA crowbar output is activated. An over-voltage latch will maintain the crowbar output and can be used to shutdown the driver outputs. System control to the device can be accommodated at a single input which will act as both a supply reset and remote shutdown terminal. These die are protected against excessive power dissipation by an internal thermal shutdown function.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 17
Type Title Date
* Datasheet High Efficiency Linear Regulator datasheet Sep. 05, 1999
* Radiation & reliability report UC1834-SP Total Ionizing Dose (TID) Lookahead Radiation Report Oct. 07, 2020
* SMD UC1834-SP SMD 5962-87742 Jul. 08, 2016
Selection guide TI Space Products (Rev. H) Jan. 27, 2021
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer Aug. 21, 2020
Application note LDO Noise Demystified (Rev. B) Aug. 18, 2020
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations May 18, 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form May 18, 2020
Application note Single-Event Effects Confidence Interval Calculations Jan. 14, 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing Jun. 17, 2019
E-book Preview: Radiation Handbook for Electronics (Rev. A) Jun. 07, 2019
E-book Radiation Handbook for Electronics (Rev. A) May 21, 2019
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application note LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

CAD/CAE symbols

Package Pins Download
CDIP (J) 16 View options
LCCC (FK) 20 View options

Ordering & quality

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