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REG104GA-2.5 PDF预览

REG104GA-2.5

更新时间： 2024-11-21 03:01:39
品牌 Logo 应用领域
BB 稳压器调节器光电二极管输出元件
页数 文件大小 规格书
21页 764K
描述
DMOS 1A Low-Dropout Regulator

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REG104GA-2.5 技术参数

生命周期：Transferred包装说明：SOT-223, 5 PIN
Reach Compliance Code：unknown风险等级：5.66
最大回动电压 1：0.46 V最大输入电压：15 V
最小输入电压：3.4 VJESD-30 代码：R-PDSO-G6
功能数量：1端子数量：6
工作温度TJ-Max：85 °C工作温度TJ-Min：-40 °C
最大输出电流 1：1 A最大输出电压 1：2.5875 V
最小输出电压 1：2.4125 V标称输出电压 1：2.5 V
封装主体材料：PLASTIC/EPOXY封装形状：RECTANGULAR
封装形式：SMALL OUTLINE认证状态：Not Qualified
调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR表面贴装：YES
技术：NMOS端子形式：GULL WING
端子位置：DUALBase Number Matches：1

REG104GA-2.5 数据手册

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REG104  
REG104  
REG  
104  
SBVS025G – SEPTEMBER 2001 – REVISED SEPTEMBER 2005  
DMOS  
1A Low-Dropout Regulator  
DESCRIPTION  
FEATURES  
The REG104 is a family of low-noise, low-dropout linear  
regulators with low ground pin current. Its new DMOS topol-  
ogy 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 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:  
230mV typ at 1A and 3.3V Output  
Output Capacitor NOT Required for Stability  
● FAST TRANSIENT RESPONSE  
● VERY LOW NOISE: 33µVRMS  
● HIGH ACCURACY: ±2% max  
● HIGH EFFICIENCY:  
Typical ground pin current is only 1.7mA (at IOUT = 1A) and  
drops to 0.5µA in not enabled mode. Unlike regulators with  
PNP pass devices, quiescent current remains relatively con-  
stant over load variations and under dropout conditions.  
IGND = 1.7mA at IOUT = 1A  
Not Enabled: IGND = 0.5µA  
● 2.5V, 2.7V, 3.0V, 3.3V, 5.0V AND  
ADJUSTABLE OUTPUT VERSIONS  
The REG104 has very low output noise (typically 33µVRMS  
for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use  
in portable communications equipment. On-chip trimming  
results in high output voltage accuracy. Accuracy is main-  
tained over temperature, line, and load variations. Key pa-  
rameters are tested over the specified temperature range  
(–40°C to +85°C).  
● THERMAL PROTECTION  
● SMALL SURFACE-MOUNT PACKAGES:  
SOT223-5, DDPAK-5  
APPLICATIONS  
● PORTABLE COMMUNICATION DEVICES  
● BATTERY-POWERED EQUIPMENT  
● MODEMS  
The REG104 is well protected—internal circuitry provides 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-5 and the SOT223-5.  
● BAR-CODE SCANNERS  
● BACKUP POWER SUPPLIES  
Enable  
Enable  
VOUT  
VIN  
VOUT  
VIN  
REG104  
(Fixed Voltage  
Versions)  
+
R1  
Adj  
R2  
+
+
+
0.1µF  
(1)  
(1)  
COUT  
REG104-A  
COUT  
0.1µF  
NR  
Gnd  
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.  
All trademarks are the property of their respective owners.  
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 © 2001-2005, Texas Instruments Incorporated  
www.ti.com  
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