LT1931AIS5#TRPBF

$6.77

Description：IC REG CUK ADJ 1A TSOT23-5
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a7cbe19052cf Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CUK ADJ 1A TSOT23-5
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Up/Step-Down
Output Configuration：Negative
Topology：Cuk
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：2.45V
Voltage - Input (Max)：16V
Voltage - Output (Min/Fixed)：-1.255V
Voltage - Output (Max)：-34V
Current - Output：1A (Switch)
Frequency - Switching：2.2MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-5 Thin, TSOT-23-5
Supplier Device Package：TSOT-23-5

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LT1931AIS5#TRPBF

Overview

The LT1931AIS5#TRPBF is a negative Cuk switching regulator IC manufactured by Analog Devices Inc. It operates with an input voltage range of 2.45V to 16V and provides a single adjustable negative output ranging from -1.255V to -34V. The device supports a maximum switch current of 1A and utilizes a fixed 2.2MHz switching frequency. Packaged in a TSOT-23-5 surface-mount case, it is rated for an operating temperature range of 0°C to 70°C.

Feature Summary

Implements Cuk topology to generate negative voltages from positive inputs
Provides fully adjustable negative output voltage control
Integrates a high-frequency 2.2MHz oscillator for compact passive design

Applications

Negative power supply generation for operational amplifier circuits
Bias voltage creation for analog signal processing systems
Power management in portable devices requiring inverted rails

Procurement Notes

Verify the specific suffix 'IS5' confirms the industrial-grade temperature rating and package type. Confirm the '#TRPBF' designation indicates tape-and-reel packaging and lead-free compliance. Cross-reference the manufacturer datasheet to ensure the component matches the required electrical specifications for your circuit design before procurement.

Selection Notes

Select this component when a negative output is required from a standard positive rail within the specified input range. The 1A switch current capability suits moderate load applications. Ensure the design accommodates the 2.2MHz switching frequency for appropriate inductor and capacitor selection. Verify that the commercial temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the LT1931 family of negative Cuk regulators from Analog Devices. These components are designed to efficiently convert positive input voltages into stable negative outputs. The series is characterized by its ability to handle wide input ranges while maintaining regulation in a small footprint suitable for space-constrained electronic designs.