LT1959IR#PBF The LT1959IR#PBF is a 500kHz monolithic buck mode switching regulator from Analog Devices / Linear Technology. It operates with an input voltage as low as 4V and provides an output voltage down to 1.21V.
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LT1959IR#PBF

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Mfr Name: LT
LT
The LT1959IR#PBF is a 500kHz monolithic buck mode switching regulator from Analog Devices / Linear Technology. It operates with an input voltage as low as 4V and provides an output voltage down to 1.21V.
✓ Total Stock: 630 pcs

LT1959IR#PBF Available from 1 distributor

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630 pcs
630 pcs On Request 1 On Request On Request 1404+ On Request On Request

LT1959IR#PBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Industrial Grade
SVHC Present

LT1959IR#PBF Description

Short technical summary and product information.

The LT1959IR#PBF is a 500kHz step-down switching regulator designed for low output voltage applications. It features a constant switching frequency of 500kHz, which allows for a reduction in the size of external components. The device operates with an input voltage range of 4.3V to 15V and can provide an output voltage as low as 1.21V.

 

This regulator includes a 4.5A switch and current mode control for fast transient response and good loop stability. It is suitable for applications requiring high efficiency at high switching frequencies. The LT1959IR#PBF is available in a DDPAK-7 package and supports SMD/SMT mounting.

 

Key electrical characteristics include an output current capability of up to 3.6A, a quiescent supply current of 3.8mA, and a shutdown current of 15mA. The operating temperature range is -40°C to +125°C.

 

Applications for this regulator include portable computers, battery-powered systems, battery chargers, and distributed power systems, particularly for 5V to 3.3V, 5V to 2.5V, and 5V to 1.8V conversions.

LT1959IR#PBF Quick Information

Product Type: Switching Voltage Regulator
Series: LT1959
Canonical Name: LT1959IR#PBF Switching Voltage Regulator
Subcategory: Switching Voltage Regulators

LT1959IR#PBF Compliance

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

LT1959IR#PBF Features

  • Constant 500kHz switching frequency.
  • Operates with input as low as 4V.
  • Output range down to 1.21V.
  • 4.5A switch included on die.
  • Current mode control for stability.

LT1959IR#PBF Applications

  • Suitable for portable computers.
  • Ideal for battery-powered systems.
  • Used in battery chargers.
  • Applicable for distributed power.
  • Supports 5V to 3.3V conversion.

LT1959IR#PBF FAQs

6 frequently asked questions generated from this part’s specifications.
What is the switching frequency of the LT1959IR#PBF?

The switching frequency is 500 kHz.

What is the input voltage range for the LT1959IR#PBF?

The input voltage range is 4.3 V to 15 V.

What is the minimum output voltage of the LT1959IR#PBF?

The output voltage can be as low as 1.21V.

What is the maximum output current for the LT1959IR#PBF?

The maximum output current is 3.6 A.

What is the operating temperature range of the LT1959IR#PBF?

The operating temperature range is -40°C to +125°C.

What package type is the LT1959IR#PBF available in?

The LT1959IR#PBF is available in a DDPAK-7 package.

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