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参数资料
| 型号： | REG101 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | DMOS 100mA Low-Dropout Regulator |
| 中文描述： | 的DMOS 100mA的低压差稳压器 |
| 文件页数： | 1/15页 |
| 文件大小： | 277K |
| 代理商： | REG101 |
DMOS
100mA Low-Dropout Regulator
FEATURES
G
NEW DMOS TOPOLOGY:
Ultra Low Dropout Voltage:
60mV typ at 100mA
Output capacitor NOT required for stability
G
FAST TRANSIENT RESPONSE
G
VERY LOW NOISE:
23
μ
Vrms
G
HIGH ACCURACY:
±
1.5% max
G
HIGH EFFICIENCY:
I
GND
= 500
μ
A at I
OUT
= 100mA
Not Enabled: I
GND
= 10nA
G
2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V, AND
ADJUSTABLE OUTPUT VERSIONS
G
OTHER OUTPUT VOLTAGES AVAILABLE UPON
REQUEST
G
FOLDBACK CURRENT LIMIT
G
THERMAL PROTECTION
G
SMALL SURFACE-MOUNT PACKAGES:
SOT23-5 and SO-8
APPLICATIONS
G
PORTABLE COMMUNICATION DEVICES
G
BATTERY-POWERED EQUIPMENT
G
PERSONAL DIGITAL ASSISTANTS
G
MODEMS
G
BAR-CODE SCANNERS
G
BACKUP POWER SUPPLIES
DESCRIPTION
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 1
μ
F.
Typical ground pin current is only 500
μ
A (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.
The REG101 has very low output noise (typically 23
μ
Vrms
for V
OUT
= 3.3V with C
NR
= 0.01
μ
F), 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).
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.
REG101
(Fixed Voltage
Versions)
Enable
Gnd
0.1
μ
F
C
OUT(1)
+
+
V
OUT
V
IN
NR
NR = Noise Reduction
NOTE: (1) Optional.
REG101-A
Gnd
Enable
0.1
μ
F
+
C
OUT(1)
+
V
OUT
V
IN
R
2
R
1
Adj
REG101
REG101
SBVS026C – JULY 2001
www.ti.com
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.
Copyright 2000, Texas Instruments Incorporated
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.
相关PDF资料 |
PDF描述 |
|---|---|
| REG102UA-2.8 | DMOS 250mA Low-Dropout Regulator |
| REG102UA-2.85 | DMOS 250mA Low-Dropout Regulator |
| REG102GA-2.8 | DMOS 250mA Low-Dropout Regulator |
| REG102 | DMOS 250mA Low-Dropout Regulator |
| REG113 | DMOS 400mA Low-Dropout Regulator(DMOS 400mA 低压差稳压器) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| REG101_05 | 制造商:TI 制造商全称:Texas Instruments 功能描述:DMOS 100mA Low-Dropout Regulator |
| REG101-25 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DMOS 100mA Low Dropout (LDO) Regulator |
| REG101-28 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DMOS 100mA Low Dropout (LDO) Regulator |
| REG101-285 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DMOS 100mA Low Dropout (LDO) Regulator |
| REG101-3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DMOS 100mA Low Dropout (LDO) Regulator |
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