TPS78925 超低功耗低噪声的 100mA 低压降 (LDO) 线性稳压器
TPS78925 描述
The TPS789xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, ultralow-power operation, low-output noise, and miniaturized packaging. These regulators feature low-dropout voltages and ultralow quiescent current compared to conventional LDO regulators. An internal resistor, in conjunction with an external bypass capacitor, creates a low-pass filter to reduce the noise. The TPS78930 exhibits only 56 uVRMS of output voltage noise using 0.01 uF bypass and 10 uF output capacitors. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS789xx series devices are ideal for micropower operations, low output noise, and where board space is limited.
The usual PNP pass transistor has been replaced by a PMOS pass element.
|
TPS78915 |
TPS78918 |
TPS78925 |
TPS78928 |
TPS78930 |
| Iout(Max)(A) |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
| Vdo(Typ)(mV) |
115 |
115 |
115 |
115 |
115 |
| Iq(Typ)(mA) |
0.018 |
0.018 |
0.018 |
0.018 |
0.018 |
| Vin(Min)(V) |
2.7 |
2.7 |
2.7 |
2.922 |
3.115 |
| Vin(Max)(V) |
13.5 |
13.5 |
13.5 |
13.5 |
13.5 |
| Vout(Min)(V) |
1.5 |
1.8 |
2.5 |
2.8 |
3 |
| Vout(Max)(V) |
1.5 |
1.8 |
2.5 |
2.8 |
3 |
| Output Capacitor(uF) |
4.7 |
4.7 |
4.7 |
4.7 |
4.7 |
| Output Capacitor Type |
Tantalum |
Tantalum |
Tantalum |
Tantalum |
Tantalum |
| Fixed Output Options(V) |
1.5 |
1.8 |
2.5 |
2.8 |
3 |
| Pin/Package |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
1 |
TPS78925 特性
- 100-mA Low-Dropout Regulator
- Available in 1.5-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V
- Output Noise Typically 56 uVRMS (TPS78930)
- Only 17 uA Quiescent Current at 100 mA
- 1 uA Quiescent Current in Standby Mode
- Dropout Voltage Typically 115 mV at 100 mA (TPS78930)
- Over Current Limitation
- \x9640°C to 125°C Operating Junction Temperature Range
- 5-Pin SOT-23 (DBV) Package
TPS78925 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS78925DBVR |
ACTIVE |
-40 to 125 |
0.45 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
PEFI |
| TPS78925DBVRG4 |
ACTIVE |
-40 to 125 |
0.45 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
PEFI |
| TPS78925DBVT |
ACTIVE |
-40 to 125 |
0.50 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
PEFI |
| TPS78925DBVTG4 |
ACTIVE |
-40 to 125 |
0.50 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
PEFI |
TPS78925 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS78925DBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78925DBVR |
TPS78925DBVR |
| TPS78925DBVRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78925DBVRG4 |
TPS78925DBVRG4 |
| TPS78925DBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78925DBVT |
TPS78925DBVT |
| TPS78925DBVTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78925DBVTG4 |
TPS78925DBVTG4 |
TPS78925 应用技术支持与电子电路设计开发资源下载
- TPS78925 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)
TPS78925 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS78925 评估模块 |
TPS78925EVM |
Texas Instruments |
开发电路板/EVM |
| 采用 5 条或 6 条引线 SOT23 (DBV) 封装与大多数正输出 LDO 稳压器兼容的 DEM-SOT23LDO |
DEM-SOT23LDO |
Texas Instruments |
开发电路板/EVM |
