Datasheet > REG101-28

REG101-28

更新时间： 2024-11-04 23:32:39

品牌	Logo	应用领域
其他 - ETC		稳压器
页数	文件大小	规格书
14页	266K
描述
DMOS 100mA Low Dropout (LDO) Regulator

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REG101-28 数据手册

REG101

SBVS026C – JULY 2001

DMOS

100mA Low-Dropout Regulator

DESCRIPTION

FEATURES

The REG101 is a family of low-noise, low-dropout linear

regulators with low ground pin current. Its new DMOS

topology provides significant improvement over previous

designs, including low dropout voltage (only 60mV typ at

full load), and better transient performance. In addition, no

output capacitor is required for stability, unlike conventional

low-dropout regulators that are difficult to compensate and

require expensive low ESR capacitors greater than 1µF.

● NEW DMOS TOPOLOGY:

Ultra Low Dropout Voltage:

60mV typ at 100mA

Output capacitor NOT required for stability

● FAST TRANSIENT RESPONSE

●

VERY LOW NOISE: 23µVrms

● HIGH ACCURACY: ±1.5% max

● HIGH EFFICIENCY:

Typical ground pin current is only 500µA (at I_OUT= 100mA)

and drops to 10nA when not in enabled mode. Unlike regula-

tors with PNP pass devices, quiescent current remains rela-

tively constant over load variation and under dropout condi-

tions.

I_GND= 500µA at I_OUT= 100mA

Not Enabled: I_GND= 10nA

● 2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V, AND

The REG101 has very low output noise (typically 23µVrms

for V_OUT= 3.3V with C_NR= 0.01µF), making it ideal for use

in portable communications equipment. Accuracy is main-

tained over temperature, line, and load variations. Key

parameters are tested over the specified temperature range

(–40°C to +85°C).

ADJUSTABLE OUTPUT VERSIONS

● OTHER OUTPUT VOLTAGES AVAILABLE UPON

REQUEST

● FOLDBACK CURRENT LIMIT

● THERMAL PROTECTION

The REG101 is well protected—internal circuitry provides a

current limit that protects the load from damage. Thermal

protection circuitry keeps the chip from being damaged by

excessive temperature. The REG101 is available in the

SOT23-5 and the SO-8 packages.

● SMALL SURFACE-MOUNT PACKAGES:

SOT23-5 and SO-8

APPLICATIONS

● PORTABLE COMMUNICATION DEVICES

● BATTERY-POWERED EQUIPMENT

● PERSONAL DIGITAL ASSISTANTS

● MODEMS

● BAR-CODE SCANNERS

● BACKUP POWER SUPPLIES

Enable

V_OUT

V_IN

V_OUT

V_IN

REG101

(Fixed Voltage

Versions)

R₁

Adj

R₂

0.1µF

(1)

C_OUT

REG101-A

C_OUT

0.1µF

Gnd

NR = Noise Reduction

NOTE: (1) Optional.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

12 3 4 5 6 7...14

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与REG101-28相关器件

型号	品牌	获取价格	描述	数据表
REG101-285	ETC	获取价格	DMOS 100mA Low Dropout (LDO) Regulator
REG101-3	ETC	获取价格	DMOS 100mA Low Dropout (LDO) Regulator
REG101-33	ETC	获取价格	DMOS 100mA Low Dropout (LDO) Regulator
REG101-5	ETC	获取价格	DMOS 100mA Low Dropout (LDO) Regulator
REG101-A	TI	获取价格	DMOS 100mA Low-Dropout Regulator
REG101NA-2.5/250	TI	获取价格	DMOS 100mA Low-Dropout Regulator
REG101NA-2.5/250G4	TI	获取价格	DMOS 100mA Low-Dropout Regulator
REG101NA-2.5/2K5	ETC	获取价格	Positive Fixed Voltage Regulator
REG101NA-2.5/3K	TI	获取价格	DMOS 100mA Low-Dropout Regulator
REG101NA-2.5/3KG4	TI	获取价格	DMOS 100mA Low-Dropout Regulator

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