低压降(LDO)线性稳压器

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LDO（低压降）是一种线性稳压器，面向运行时输入-输出电压差（压降）非常低的应用。其目的是将设备上发热带来的功率散失降至最低，从而提高转换效率。

我们的LDO稳压器系列是同类器件中最佳，包括：

LDO稳压器 vs 线性稳压器

线性稳压器是一种经济划算的方式，用于提供稳定的输出电压，其特点是设计简单且外部组件较少。但是LDO稳压器可以在输出电流小于几安培且输出电压接近输入电压的应用中实现成本与性能的最佳平衡。

LDO稳压器 vs 开关转换器

与DC-DC开关转换器相比，LDO稳压器不产生纹波，因此可以提供非常干净的电源电压。由于所需的外部无源元件数量最少，大大减少了设计工作量。

意法半导体的LDO稳压器实现了以下特性的最佳结合：

低压差
低静态电流（低IQ）
快速的瞬态响应
低噪音
和出色的纹波抑制

尤其是，我们的超低压降稳压器是电池供电的消费和工业应用，以及便携式卫生保健设备的理想之选，因为：

超低静态电流（低至0.3 µA）延长了电池使用寿命
小型封装选项，包括0.65mm x 0.65 mm 倒装片和0.47 mmx 0.47 mm STSTAMP™，达到了最小的尺寸

由于具有高PSRR（电源抑制比）和低噪声的特点，所以可以沿着信号路径在很宽的输入电压和输出电流范围内保持高信号保真度。

Find the best design solution thanks to high-performances Quad-LDO evaluation board

The STEVAL-LDO001V1 allows smart evaluation of four ST's high-performance low-dropout linear voltage regulators specially designed for extend battery life in portable smart devices. Thanks to state-of-the-art technologies, designs and innovative packaging, designers can select the best solution in terms of ultra-low quiescent current, ultra-low noise and high PSRR, automatic green mode and miniature packages such as Flip-Chip or ST STAMP™.

Ultra-tiny low-dropout regulator in breakthrough bumpless chip-scale package

The LDBL20 is a powerful 200 mA LDO in a tiny 0.47 x 0.47 mm innovative ST STAMP™ chip-scale package. The input voltage can range from 1.5 to 5.5 V, with 200 mV typical dropout. Rejection (PSRR) of 80 dB at 100 Hz and 50 dB at 100 kHz simplifies filtering over a wide frequency range to provide a stable rail for low-power circuitry in battery-operated applications. Quiescent current of 20 µA no-load, 100 µA full-load, and 0.3 µA in standby help maximize efficiency under all operating conditions.

LDBL20
200 mA very 200 mA very low quiescent current linear regulator IC in (0.47x0.47) mm² ST STAMP™ package
LDL212
1.2A Low Drop Linear Regulator IC
LFXX
Very low drop voltage regulator with inhibit
STLQ50
50mA, 3µA Supply current low drop linear regulator
LD39050
500 mA low quiescent current and low noise voltage regulator
LD57100
1A Ultra low dropout LDO with Bias
LDLN025
250 mA ultra-low noise LDO
LD39015J
150 mA low quiescent current low noise voltage regulator
ST1L05
Very low quiescent BiCMOS voltage regulator
LDK130
300 mA low quiescent current very low noise LDO
ST1L08
800 mA Ultra low drop, high PSRR voltage regulator
LK112S
Low noise and low drop voltage regulator with shutdown function
LD39150
Ultra low drop BiCMOS voltage regulator
ST715
High input voltage - 85 mA LDO linear regulator
LDK120
200 mA low quiescent current very low noise LDO
L4940
1.5 A very low drop voltage regulator IC
LD49150
1.5 A ultra low dropout voltage regulator
LD39080
Ultra low drop BICMOS voltage regulator
LD49300
3A Very low drop for low output voltage regulator
LDCL015
150 mA capless ultra low drop linear regulator ICs
LM2931
Very low drop voltage regulators with inhibit function
LK112
Low noise and low drop voltage regulator with shutdown function
L4941
Very low drop 1A regulator
LDLN050
500 mA, high performance low dropout linear regulator
LDL112
1.2 A low quiescent current LDO with reverse current protection
LDLN030
300 mA ultra-low noise LDO with Power Good and Soft Start
L6932
High Performance 2A ULDO Linear Regulator
LD39115J
150 mA low quiescent current low noise voltage regulator
LDK715
High input voltage 85 mA LDO linear regulator
LD39030SJ
300 mA low quiescent current soft-start, low noise voltage regulator
ST730
300 mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current
LDF
1A Very low drop voltage regulator IC
LD2979
Very low drop voltage regulators with inhibit
LD2980
Ultra low drop voltage regulators compatible with low ESR output capacitors
LEXX
Very low-dropout voltage regulator with inhibit function
KFXX
Very low drop voltage regulators with inhibit
LD56050
500mA ultra low dropout linear regulator with bias supply
LD59030
300 mA very low dropout current linear regulator IC
LDS3985
Very low drop and low noise BiCMOS 300 mA voltage regulator
LD59015
150 mA low noise high PSRR linear voltage regulator
LDLN015
150 mA - ultra low noise - high PSRR linear voltage regulator IC
LDK320
200 mA low quiescent current and high PSRR voltage regulator
LDL1117
1.2 A High PSRR low dropout linear voltage regulator
LD39015
150 mA low quiescent current low noise voltage regulator
LD29150
1.5 A, very low drop voltage regulators
LD39200
2 A high PSRR ultra low drop linear regulator with reverse current protection
LD3985
Ultra low drop-low noise BiCMOS voltage regulators low ESR capacitors compatible
LDFM
500 mA very low drop voltage regulator
LD39130S
300 mA very low quiescent current Linear regulator IC with automatic Green mode
LD59150
1.5A Low Dropout Linear Regulator with Programmable Soft-Start
LD56100
1A very low dropout fast transient ultra-low noise linear regulator
LD39030
300 mA very low quiescent current linear regulator IC
L6932H1.2
High Performance 2A ULDO Linear Regulator
STLQ020
200 mA ultra-low quiescent current LDO
LD39100
1 A low quiescent current low noise voltage regulator
LDO40L
400 mA, 38 V low-dropout regulator, with 45µA quiescent current
LD59100
1A Ultra Low-Dropout regulator with Reverse Current Protection
LDK220
200 mA low quiescent current and low noise LDO
ST732
300mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current
STLQ015
150 mA - ultra low quiescent current linear voltage regulator
LD29300
3 A, very low drop voltage regulators
L4931
Very low drop voltage regulators with inhibit
LD2981
Ultra low drop voltage regulators with inhibit low ESR output
LD29080
800 mA fixed and adjustable output very low drop voltage regulator
LD39020
200 mA very low quiescent current Linear regulator IC
LD2985
Very low drop and low noise voltage regulator with inhibit function
LD39030
300 mA very low quiescent current linear regulator IC
LDBL20
200 mA very 200 mA very low quiescent current linear regulator IC in (0.47x0.47) mm² ST STAMP™ package
LD59015
150 mA low noise high PSRR linear voltage regulator
STLQ020
200 mA ultra-low quiescent current LDO
LD39100
1 A low quiescent current low noise voltage regulator
STLQ50
50mA, 3µA Supply current low drop linear regulator
LD39050
500 mA low quiescent current and low noise voltage regulator
LDLN015
150 mA - ultra low noise - high PSRR linear voltage regulator IC
LDLN025
250 mA ultra-low noise LDO
LD39115J
150 mA low quiescent current low noise voltage regulator
ST732
300mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current
LD39015
150 mA low quiescent current low noise voltage regulator
STLQ015
150 mA - ultra low quiescent current linear voltage regulator
LDK715
High input voltage 85 mA LDO linear regulator
LD39015J
150 mA low quiescent current low noise voltage regulator
LDK130
300 mA low quiescent current very low noise LDO
LD39200
2 A high PSRR ultra low drop linear regulator with reverse current protection
LD39030SJ
300 mA low quiescent current soft-start, low noise voltage regulator
ST715
High input voltage - 85 mA LDO linear regulator
LDK120
200 mA low quiescent current very low noise LDO
LD39020
200 mA very low quiescent current Linear regulator IC
ST730
300 mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current
LD39130S
300 mA very low quiescent current Linear regulator IC with automatic Green mode
LD59150
1.5A Low Dropout Linear Regulator with Programmable Soft-Start
LD56100
1A very low dropout fast transient ultra-low noise linear regulator
LD59030
300 mA very low dropout current linear regulator IC
LDBL20
200 mA very 200 mA very low quiescent current linear regulator IC in (0.47x0.47) mm² ST STAMP™ package
LD39100
1 A low quiescent current low noise voltage regulator
LD59015
150 mA low noise high PSRR linear voltage regulator
LD39050
500 mA low quiescent current and low noise voltage regulator
LDLN050
500 mA, high performance low dropout linear regulator
LDLN030
300 mA ultra-low noise LDO with Power Good and Soft Start
LDLN015
150 mA - ultra low noise - high PSRR linear voltage regulator IC
LD59100
1A Ultra Low-Dropout regulator with Reverse Current Protection
LDLN025
250 mA ultra-low noise LDO
LD39115J
150 mA low quiescent current low noise voltage regulator
LD39015
150 mA low quiescent current low noise voltage regulator
LD39200
2 A high PSRR ultra low drop linear regulator with reverse current protection
LD39030SJ
300 mA low quiescent current soft-start, low noise voltage regulator
LD39020
200 mA very low quiescent current Linear regulator IC
LD3985
Ultra low drop-low noise BiCMOS voltage regulators low ESR capacitors compatible
LD59030
300 mA very low dropout current linear regulator IC
LD56050
500mA ultra low dropout linear regulator with bias supply
LDL212
1.2A Low Drop Linear Regulator IC
LDS3985
Very low drop and low noise BiCMOS 300 mA voltage regulator
LD39050
500 mA low quiescent current and low noise voltage regulator
LDK320
200 mA low quiescent current and high PSRR voltage regulator
LD57100
1A Ultra low dropout LDO with Bias
LD39015
150 mA low quiescent current low noise voltage regulator
LD39200
2 A high PSRR ultra low drop linear regulator with reverse current protection
LDK130
300 mA low quiescent current very low noise LDO
ST1L08
800 mA Ultra low drop, high PSRR voltage regulator
LK112S
Low noise and low drop voltage regulator with shutdown function
LD39150
Ultra low drop BiCMOS voltage regulator
LDK120
200 mA low quiescent current very low noise LDO
LD3985
Ultra low drop-low noise BiCMOS voltage regulators low ESR capacitors compatible
LDFM
500 mA very low drop voltage regulator
L4940
1.5 A very low drop voltage regulator IC
LD39130S
300 mA very low quiescent current Linear regulator IC with automatic Green mode
LD49150
1.5 A ultra low dropout voltage regulator
LD59150
1.5A Low Dropout Linear Regulator with Programmable Soft-Start
LD39080
Ultra low drop BICMOS voltage regulator
LD49300
3A Very low drop for low output voltage regulator
LDCL015
150 mA capless ultra low drop linear regulator ICs
LD56100
1A very low dropout fast transient ultra-low noise linear regulator
LD39100
1 A low quiescent current low noise voltage regulator
L6932H1.2
High Performance 2A ULDO Linear Regulator
L4941
Very low drop 1A regulator
LDL112
1.2 A low quiescent current LDO with reverse current protection
LDO40L
400 mA, 38 V low-dropout regulator, with 45µA quiescent current
LD59100
1A Ultra Low-Dropout regulator with Reverse Current Protection
LD39115J
150 mA low quiescent current low noise voltage regulator
STLQ015
150 mA - ultra low quiescent current linear voltage regulator
LDK220
200 mA low quiescent current and low noise LDO
L6932
High Performance 2A ULDO Linear Regulator
L4931
Very low drop voltage regulators with inhibit
LD39030SJ
300 mA low quiescent current soft-start, low noise voltage regulator
LDF
1A Very low drop voltage regulator IC

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收藏

LDO稳压器 vs 线性稳压器

LDO稳压器 vs 开关转换器

精选产品

Find the best design solution thanks to high-performances Quad-LDO evaluation board

Ultra-tiny low-dropout regulator in breakthrough bumpless chip-scale package

适合您的资源

搜索历史

收藏

低压降(LDO)线性稳压器

LDO稳压器 vs 线性稳压器

LDO稳压器 vs 开关转换器

精选 视频

精选 产品

Find the best design solution thanks to high-performances Quad-LDO evaluation board

Ultra-tiny low-dropout regulator in breakthrough bumpless chip-scale package

适合您的资源

精选视频

精选产品