3A Very low drop for low output voltage regulator

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  • The LD49300 is a high-bandwidth, low-dropout, 3.0 A voltage regulator, ideal for powering core voltages of low power microprocessors. The LD49300 implements a dual supply configuration, which guarantees a very low output impedance and a fast transient response. The LD49300 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 bias supply requires between 3 V and 6 V to work properly. The LD49300 offers fixed output voltages from 0.8 V to 1.8 V and adjustable output voltages from 0.8 V. The LD49300 requires a minimum output capacitance for stability, and works optimally with small ceramic capacitors.

    主要特性

    • 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) 400 mV over the operating temperature range
    • Adjustable output voltage starting from 0.8 V
    • Very 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

样片和购买

型号
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
Budgetary Price (US$)*
Quantity
More info
Order from Distributors
Order from ST
LD49300PT12R PPACK 5 Tape And Reel 1.2 1.5 3
NRND
0.91 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

-

Check Availability

Distributor availability ofLD49300PT12R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1397 1 Order Now

代理商库存报告日期: 2019-06-26

代理商名称

DIGIKEY

库存

1397

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-06-26

Buy now
LD49300PT08R PPACK 5 Tape And Reel 0.8 1.5 3
Active
0.91 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD49300PT08R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2028 1 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 3557 1 Order Now

代理商库存报告日期: 2019-06-26

代理商名称

DIGIKEY

库存

2028

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

625

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

3557

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-06-26

Buy now

LD49300PT12R

Package

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.91*

Distributor availability ofLD49300PT12R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1397 1 Order Now

代理商库存报告日期: 2019-06-26

代理商名称

DIGIKEY

库存

1397

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-06-26

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

1.5

Output Current (A) (nom)

3

Marketing Status

NRND

Unit Price (US$)

0.91

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

LD49300PT08R

Package

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.91*

Distributor availability ofLD49300PT08R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2028 1 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 3557 1 Order Now

代理商库存报告日期: 2019-06-26

代理商名称

DIGIKEY

库存

2028

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

625

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

3557

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-06-26

Output Voltage (V) (nom)

0.8

Output Tolerance (typ)

1.5

Output Current (A) (nom)

3

Marketing Status

Active

Unit Price (US$)

0.91

Quantity

1000

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

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型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD49300PT08R
Active
PPACK 5 工业 Ecopack2
LD49300PT12R
NRND
PPACK 5 工业 Ecopack2

LD49300PT08R

Package:

PPACK 5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD49300PT12R

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.