LT1931AES5#TRMPBF The LT1931AES5#TRMPBF is an inverting DC/DC switching regulator from Analog Devices. It features a 2.2MHz switching frequency and a 1A switch current capability.
Mfr Part #:

LT1931AES5#TRMPBF

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The LT1931AES5#TRMPBF is an inverting DC/DC switching regulator from Analog Devices. It features a 2.2MHz switching frequency and a 1A switch current capability.
✓ Total Stock: 1,000 pcs
$ Price Range: $1.08

LT1931AES5#TRMPBF Available from 1 distributor

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LT1931AES5#TRMPBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
SVHC Present
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage

LT1931AES5#TRMPBF Description

Short technical summary and product information.

The LT1931AES5#TRMPBF is a high-power inverting current mode DC/DC converter from Analog Devices, designed for efficient power conversion in a compact footprint.

 

This device operates at a fixed switching frequency of 2.2MHz, enabling the use of small surface-mount components like tiny, low-cost capacitors and inductors. It features a wide input voltage range from 2.6V to 16V and includes a 1A integrated switch with a low VCESAT of 400mV. The converter is capable of generating negative output voltages, such as -5V at 350mA or -12V at 150mA from a 5V input.

 

Designed for applications requiring low noise and low impedance negative supplies, the LT1931AES5#TRMPBF utilizes a dual inductor inverting topology. This topology filters both input and output currents, achieving very low output voltage ripple approaching 1mVP-P when used with ceramic output capacitors. The fixed frequency switching ensures a clean output free from low-frequency noise.

 

The LT1931AES5#TRMPBF is housed in a low-profile (1mm) 5-lead ThinSOT-23-5 package, suitable for space-constrained designs. Its surface mount type facilitates easy integration into printed circuit boards.

LT1931AES5#TRMPBF Quick Information

Product Type: DC/DC Switching Regulator
Canonical Name: LT1931AES5#TRMPBF Inverting DC/DC Converter
Subcategory: Inverting

LT1931AES5#TRMPBF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

LT1931AES5#TRMPBF Estimated Pricing

Qty Low High
1+ $1.08 $1.08

Estimated market price range - modelled values for guidance only, not live distributor offers.

LT1931AES5#TRMPBF Features

  • Fixed frequency 2.2MHz operation.
  • Very low output voltage ripple.
  • Wide input voltage range 2.6V to 16V.
  • 1A integrated switch.
  • Low profile 1mm ThinSOT package.

LT1931AES5#TRMPBF Applications

  • Disk drive MR head bias.
  • Digital camera CCD bias.
  • LCD bias.
  • GaAs FET bias.
  • Local negative supply.

LT1931AES5#TRMPBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the LT1931AES5#TRMPBF?

The input voltage range is 2.6V to 16V.

What is the switching frequency?

The switching frequency is 2.2MHz typical.

What is the maximum switch current?

The switch current is 1A typical.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What package is the LT1931AES5#TRMPBF available in?

It is available in SOT-23-5 Thin and TSOT-23-5 packages.

What is the typical feedback voltage?

The typical feedback voltage is -1.255V.

What is the quiescent current when switching?

The quiescent current is 6mA typical when switching.

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