概要
ツール & ソフトウェア
リソース
ソリューション
品質 & 信頼性
Sales Briefcase
eDesignSuite
Get Started
サンプル & 購入
Partner products
  • 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.

    主な特徴

    • 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

サンプル & 購入

製品型番
パッケージ
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
Budgetary Price (US$)*
数量
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

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 1397 1 Order Now

代理店レポートによる在庫データ: 2019-06-24

代理店名

DIGIKEY

在庫

1397

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-06-24

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

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 2028 1 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 3657 1 Order Now

代理店レポートによる在庫データ: 2019-06-24

代理店名

DIGIKEY

在庫

2028

Min.Order

1

地域

WORLDWIDE Order Now

Newark Element14

在庫

625

Min.Order

0

地域

AMERICA Order Now

MOUSER

在庫

3657

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-06-24

Buy now

LD49300PT12R

パッケージ

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.91*

Distributor availability ofLD49300PT12R

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 1397 1 Order Now

代理店レポートによる在庫データ: 2019-06-24

代理店名

DIGIKEY

在庫

1397

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-06-24

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

1.5

Output Current (A) (nom)

3

Marketing Status

NRND

Unit Price (US$)

0.91

数量

1000

ECCN (US)

EAR99

Country of Origin

-

LD49300PT08R

パッケージ

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.91*

Distributor availability ofLD49300PT08R

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 2028 1 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 3657 1 Order Now

代理店レポートによる在庫データ: 2019-06-24

代理店名

DIGIKEY

在庫

2028

Min.Order

1

地域

WORLDWIDE Order Now

Newark Element14

在庫

625

Min.Order

0

地域

AMERICA Order Now

MOUSER

在庫

3657

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-06-24

Output Voltage (V) (nom)

0.8

Output Tolerance (typ)

1.5

Output Current (A) (nom)

3

Marketing Status

Active

Unit Price (US$)

0.91

数量

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

Recommended for you

00 Files selected for download

技術文書

    • Description バージョン サイズ アクション
      DS4983
      3 A very low-dropout voltage regulator
      4.0
      755.72 KB
      PDF
      DS4983

      3 A very low-dropout voltage regulator

Publications and Collaterals

    • Description バージョン サイズ アクション
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description バージョン サイズ アクション
      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide 2.0
      216.23 KB
      PDF
      ポータブル機器用 パワー・マネージメント 03.2017
      1,010.89 KB
      PDF

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

      ポータブル機器用 パワー・マネージメント

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
LD49300PT08R
Active
PPACK 5 インダストリアル Ecopack2
LD49300PT12R
NRND
PPACK 5 インダストリアル 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.