REG102-285 DMOS 250mA 低压降 (LDO) 稳压器
REG102-285 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
|
REG102-25 |
REG102-28 |
REG102-285 |
REG102-3 |
REG102-33 |
REG102-5 |
REG102-A |
| Iout(Max)(A) |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
| Vdo(Typ)(mV) |
150 |
150 |
150 |
150 |
150 |
150 |
150 |
| Iq(Typ)(mA) |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
| Vin(Min)(V) |
1.8 |
1.8 |
1.8 |
1.8 |
2.1 |
1.8 |
1.8 |
| Vin(Max)(V) |
10 |
10 |
12 |
12 |
12 |
12 |
12 |
| Vout(Min)(V) |
2.5 |
2.8 |
2.85 |
3 |
3.3 |
5 |
|
| Vout(Max)(V) |
2.5 |
2.8 |
2.85 |
3 |
3.3 |
5 |
|
| Vout Adj(Min)(V) |
|
|
|
|
|
|
2.5 |
| Vout Adj(Max)(V) |
|
|
|
|
|
|
5.5 |
| Accuracy(%) |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
| Output Capacitor Type |
Capacitor Free |
Capacitor Free |
Capacitor Free |
Capacitor Free |
Capacitor Free |
Capacitor Free |
Capacitor Free |
| Fixed Output Options(V) |
2.5 |
2.8 |
2.85 |
3 |
3.3 |
5 |
|
| Pin/Package |
5SOT-23, 6SOT-223, 8SOIC |
5SOT-23, 6SOT-223 |
5SOT-23, 6SOT-223, 8SOIC |
5SOT-23, 6SOT-223, 8SOIC |
5SOT-23, 6SOT-223, 8SOIC |
5SOT-23, 6SOT-223, 8SOIC |
5SOT-23, 6SOT-223, 8SOIC |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
REG102-285 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
REG102-285 芯片订购指南
REG102-285 应用技术支持与电子电路设计开发资源下载
- REG102-285 数据资料 dataSheet 下载.PDF
- TI 德州仪器LDO低压差线性稳压器驱动器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- LDO PSRR Measurement Simplified
(PDF 140 KB)
- LDO Noise Demystified
(PDF 782 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
