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  • The LD49150 is a high-bandwidth, low-dropout, 1.5 A voltage regulator, ideal for powering core voltages of low power microprocessors. The LD49150 implements a dual supply configuration, which guarantees a very low output impedance and a very fast transient response. The LD49150 requires a bias input supply and a main input supply, allowing ultra-low input voltages on the main supply rail. The input supply operates from 1.4 V to 5.5 V and the bias supply requires between 3 V and 6 V to work properly. The LD49150 offers fixed output voltages from 0.8 V to 1.8 V and adjustable output voltages starting from 0.8 V. The LD49150 requires a minimum output capacitance for stability, and works optimally with small ceramic capacitors.

    Key Features

    • Input voltage range:
      • VI = 1.4 V to 5.5 V
      • VBIAS = 3 V to 6 V
    • Stable with ceramic capacitors
    • ±1.5% initial tolerance
    • Maximum dropout voltage (VI - VO) 200 mV over the operating temperature range
    • Adjustable output voltage starting from 0.8 V
    • Fast transient response (up to 10 MHz bandwidth)
    • Excellent line and load regulation specifications
    • Logic-controlled shutdown option
    • Thermal shutdown and current limit protection
    • Junction temperature range: - 25 °C to 125 °C

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS5240
      1.5 A ultra low-dropout voltage regulator
      4.0
      671.82 KB
      PDF
      DS5240

      1.5 A ultra low-dropout voltage regulator

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description Version Size Action
      Low-dropout (LDO) linear voltage regulators Quick Reference Guide 2.1
      1.78 MB
      PDF
      Power management for handheld and portable 2.0
      1.09 MB
      PDF

      Low-dropout (LDO) linear voltage regulators Quick Reference Guide

      Power management for handheld and portable

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD49150PT08R
Active
PPACK 5 Industrial Ecopack2
LD49150PT10R
NRND
PPACK 5 Industrial Ecopack2
LD49150PT12R
NRND
PPACK 5 Industrial Ecopack2

LD49150PT08R

Package:

PPACK 5

Material Declaration**:

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD49150PT10R

Package:

PPACK 5

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD49150PT12R

Package:

PPACK 5

Material Declaration**:

Marketing Status

NRND

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
LD49150PT08R Available at 1 distributors

Distributor availability ofLD49150PT08R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now PPACK 5 Tape And Reel 0.8 1.5 1.5
Active
EAR99 CHINA 0.91 / 1k
LD49150PT12R Available at 2 distributors

Distributor availability ofLD49150PT12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2469 1 Order Now
MOUSER WORLDWIDE 2042 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

2469

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2042

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now PPACK 5 Tape And Reel 1.2 1.5 1.5
NRND
EAR99 CHINA 0.91 / 1k
LD49150PT10R Available at 1 distributors

Distributor availability ofLD49150PT10R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 671 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

671

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

PPACK 5 Tape And Reel 1 1.5 1.5
NRND
EAR99 CHINA 0.91 / 1k

LD49150PT08R

Package

PPACK 5

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.91 / 1k

Distributor availability ofLD49150PT08R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Output Voltage (V) (nom)

0.8

Output Tolerance (typ)

1.5

Output Current (A) (nom)

1.5

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.91 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LD49150PT12R

Package

PPACK 5

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.91 / 1k

Distributor availability ofLD49150PT12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2469 1 Order Now
MOUSER WORLDWIDE 2042 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

2469

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2042

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

1.5

Output Current (A) (nom)

1.5

Marketing Status

NRND

Budgetary Price (US$)* / Qty

0.91 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LD49150PT10R

Package

PPACK 5

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.91 / 1k

Distributor availability ofLD49150PT10R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 671 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

671

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Output Voltage (V) (nom)

1

Output Tolerance (typ)

1.5

Output Current (A) (nom)

1.5

Marketing Status

NRND

Budgetary Price (US$)* / Qty

0.91 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors