參數(shù)資料
型號(hào)： REG104FA-2.7/500
元件分類： 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器
英文描述： 2.7 V FIXED POSITIVE LDO REGULATOR, 0.46 V DROPOUT, PSSO5
封裝： D2PAK-5
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 246K
代理商： REG104FA-2.7/500
DMOS
1A Low-Dropout Regulator
FEATURES
q NEW DMOS TOPOLOGY:
Ultra Low Dropout Voltage:
230mV typ at 1A and 3.3V Output
Output Capacitor NOT Required for Stability
q FAST TRANSIENT RESPONSE
q VERY LOW NOISE: 33
Vrms
q HIGH ACCURACY:
±2% max
q HIGH EFFICIENCY:
IGND = 1.7mA at IOUT = 1A
Not Enabled: IGND = 0.5A
q 2.5V, 2.7V, 3.0V, 3.3V, 5.0V AND
ADJUSTABLE OUTPUT VERSIONS
q THERMAL PROTECTION
q SMALL SURFACE-MOUNT PACKAGES:
SOT223-5, DDPAK-5
APPLICATIONS
q PORTABLE COMMUNICATION DEVICES
q BATTERY-POWERED EQUIPMENT
q MODEMS
q BAR-CODE SCANNERS
q BACKUP POWER SUPPLIES
DESCRIPTION
The REG104 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 230mV typ at full load), and better transient
performance. In addition, no output capacitor is re-
quired for stability, unlike conventional low dropout
regulators that are difficult to compensate and require
expensive low ESR capacitors greater than 1
F.
Typical ground pin current is only 1.7mA (at IOUT = 1A)
and drops to 0.5
A in “not enabled” mode. Unlike
regulators with PNP pass devices, quiescent current
remains relatively constant over load variations and
under dropout conditions.
The REG104 has very low output noise (typically
33
Vrms for V
OUT = 3.3V with CNR = 0.01F),
making it ideal for use in portable communications
equipment. On-chip trimming results in high output
voltage accuracy. Accuracy is maintained over tem-
perature, line, and load variations. Key parameters are
guaranteed over the specified temperature range
(–40
°C to +85°C).
The REG104 is well protected—internal circuitry pro-
vides a current limit which protects the load from
damage. Thermal protection circuitry keeps the chip
from being damaged by excessive temperature. The
REG104 is available in the DDPAK and the SOT223-5.
Copyright 2000, Texas Instruments Incorporated
SBVS025A
Printed in U.S.A. December, 2000
REG10
4
REG104
www.ti.com
REG104
(Fixed Voltage
Versions)
Enable
Gnd
0.1
F
C
OUT
(1)
+
V
OUT
V
IN
NR
NR = Noise Reduction
NOTE: (1) Optional.
REG104-A
Gnd
Enable
0.1
F
+
C
OUT
(1)
+
V
OUT
V
IN
R
2
R
1
Adj
相關(guān)PDF資料
PDF描述
REG104GA-2.7G4 2.7 V FIXED POSITIVE LDO REGULATOR, 0.4 V DROPOUT, PDSO6
REG1117FA ADJUSTABLE POSITIVE LDO REGULATOR, 1.55 V DROPOUT, PSSO3
REG1117TR ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO4
REG1118-2.85/2K5G4 2.85 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PDSO4
REG1118-2.85G4 2.85 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PDSO4
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
REG104FA-3 制造商:Rochester Electronics LLC 功能描述:- Bulk
REG104FA-3.3 制造商:Rochester Electronics LLC 功能描述:- Bulk
REG104FA-3.3/500 功能描述:低壓差穩(wěn)壓器 - LDO DMOS 1A LDO Reg RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
REG104FA-3.3/500G3 功能描述:低壓差穩(wěn)壓器 - LDO DMOS 1A LDO Reg RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
REG104FA-3.3/KTTT 制造商:TI 制造商全稱:Texas Instruments 功能描述:DMOS 1A Low-Dropout Regulator
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