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Shunt Voltage Reference IC Adjustable 0.6V 17.4 VV ±1% 20 mA TSOT-23-5

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CAT102TDI-GT3 General Description

The CAT102 is a low voltage reference and amplifier. Designed for the control loop of low voltage power supplies, the reference voltage has been designed for 600 mV. Over a temperature range from -40°C to 85°C, the reference voltage is within 8.0 mV of the nominal 600 mV. In addition, the error amplifier output and the supply voltage pin (IN) are on separate pins.

Power supply rejection is a high 45 dB at 300 kHz. The output, OUT, can sink 20 mA at a maximum saturation voltage of 250 mV.

When combined with an optocoupler, the CAT102 can be used as an error amplifier that controls the feedback loop in isolated low output voltage switching power supplies.

ON Semiconductor, LLC Inventory

Key Features

  • 600 mv low voltage reference
  • 35 ppm low temperature coefficient
  • ±6.0 mV initial accuracy
  • High PSRR: 45 dB at 300 kHz
  • Better line regulation: 1.0 mV (VIN from 2.2 V to 18 V)
  • Low supply current: 90 µA
  • Open drain output
  • Directly drives optocouplers
  • Industrial temperature range: -40°C to 85°C
  • RoHS-compliant 5-lead TSOT-23 package
ON Semiconductor, LLC Original Stock


  • SMPS control loop
  • Low temperature coefficient voltage reference
  • Power management
  • Replaces zener diodes
  • Isolated dc-dc converters
  • Network, telecom and cellular base station power supplies
  • Adjustable voltage reference
ON Semiconductor, LLC Inventory


Status Active Package Type TSOT-23-5
Case Outline 419AE MSL Temp (°C) 260
Container Type REEL Manufacturer onsemi
Product Category Voltage References RoHS Details
Mounting Style SMD/SMT Package / Case TSOT-23
Reference Type Shunt Adjustable Precision References Output Voltage 600 mV to 18 V
Initial Accuracy 1 % Temperature Coefficient -
Series VREF - Input Voltage - Max 18 V Shunt Current - Max 20 mA
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
Series CAT102 Brand onsemi
Operating Supply Current 90 uA Product Voltage References
Product Type Voltage References Factory Pack Quantity 3000
Subcategory PMIC - Power Management ICs Topology Shunt References
Unit Weight 0.000222 oz

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Ratings and Reviews

O**t 01/24/2024

All 10 work.Cainiao, as usual, delivered on foot. Before spb-5 days.

A**n 01/23/2024

Where to take a diagram and examples of code?

J**n 04/18/2023

Received this item very quickly. The PCB assembly is of high quality. I am happy with this purchase.

E**n 12/03/2021

Product as described, packed good (arrived in excellent condition and not damaged), the Capacitors are a good build quality, arrived after 40 days, excellent seller!



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CAT102TDI-GT3 Datasheet PDF

Preliminary Specification CAT102TDI-GT3 PDF Download

CAT102TDI-GT3 PDF Preview