REG102 单路输出 LDO、250mA、可调节电压/固定电压(2.5 至 5.5V)、低噪声、快速瞬态响应 | 德州仪器 TI.com.cn

REG102
此产品已上市,且可供购买。 可提供某些产品的较新替代品。
单路输出 LDO、250mA、可调节电压/固定电压(2.5 至 5.5V)、低噪声、快速瞬态响应

单路输出 LDO、250mA、可调节电压/固定电压(2.5 至 5.5V)、低噪声、快速瞬态响应 - REG102
数据表
 

描述

The REG102 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 150mV 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.

Typical ground pin current is only 600µA (at IOUT = 250mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG102 has very low output noise (typically 28µVrms 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 maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).

The REG102 is well protected—internal circuitry provides a current limit that protects the load from damage; furthermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG102 is available in the SOT23-5, SOT223-5, and SO-8 packages.

特性

  • NEW DMOS TOPOLOGY:
       Ultra Low Dropout Voltage:
         150mV typ at 250mA
         Output capacitor not Required for Stability
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
       IGND = 600 µA at IOUT = 250mA
       Not Enabled: IGND = 0.01 µA
  • 2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS
  • OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
  • FOLDBACK CURRENT LIMIT
  • THERMAL PROTECTION
  • SMALL SURFACE-MOUNT PACKAGES:
       SOT23-5, SOT223-5, and SO-8
  • APPLICATIONS
    • PORTABLE COMMUNICATION DEVICES
    • BATTERY-POWERED EQUIPMENT
    • PERSONAL DIGITAL ASSISTANTS
    • MODEMS
    • BAR-CODE SCANNERS
    • BACKUP POWER SUPPLIES

All trademarks are the property of their respective owners.

参数

与其它产品相比 线性稳压器(LDO) 邮件 下载到电子表格中
Part number 立即下单 Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
REG102 立即下单 Adjustable Output
Fixed Output    
0.25     10     2.2     5.5     2.5     2.5
2.8
2.85
3
3.3
5    
SOIC | 8
SOT-223 | 6
SOT-23 | 5    
Enable     1     -40 to 85     150     28     1.05 | 1ku     Catalog     46     2     150     0.4     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
REG101 立即下单 Adjustable Output
Fixed Output    
0.1     10     1.8     5.5     2.5     2.5
2.8
2.85
3
3.3
5    
SOIC | 8
SOT-23 | 5    
Enable
Foldback Overcurrent Protection    
1     -40 to 85     150     23     0.92 | 1ku     Catalog     46     2     60     0.4     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
REG103 立即下单 Adjustable Output
Fixed Output    
0.5     15     2.7     5.5     1.3     2.5
3
3.3
5    
DDPAK/TO-263 | 5
SOIC | 8
SOT-223 | 6    
Enable
Power Good    
1     -40 to 85     150     33     2.24 | 1ku     Catalog     20     2     115     1     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)    
REG104 立即下单 Adjustable Output
Fixed Output    
1     15     2.7     5.5     1.3     2.5
3
3.3
5    
DDPAK/TO-263 | 5
SOT-223 | 6    
Enable     1     -40 to 85     27     33     2.33 | 1ku     Catalog       2     230     1.7     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)