TPS78825 具有瞬态电流控制用于 USB 应用的 150mA 2.5V 低噪声 LDO
|
TPS78825 |
TPS78833 |
| Iout(Max)(A) |
0.15 |
0.15 |
| Vdo(Typ)(mV) |
150 |
150 |
| Iq(Typ)(mA) |
0.018 |
0.018 |
| Vin(Min)(V) |
2.7 |
2.7 |
| Vin(Max)(V) |
10 |
10 |
| Vout(Min)(V) |
2.5 |
3.3 |
| Vout(Max)(V) |
2.5 |
3.3 |
| Accuracy(%) |
3 |
3 |
| Output Capacitor(uF) |
4.7 |
4.7 |
| Output Capacitor Type |
Ceramic |
Tantalum |
| Fixed Output Options(V) |
2.5 |
3.3 |
| Pin/Package |
5SOT-23 |
5SOT-23 |
| Rating |
Catalog |
Catalog |
| Regulated Outputs(#) |
1 |
1 |
TPS78825 描述
The TPS78825 and TPS78833 are very small (SOT-23) package, low-noise LDOs that regulate the output voltage to 2.5 V and 3.3 V with input voltage ranging from 2.7 V to an absolute maximum of 13.5 V. These devices output 150 mA with a peak current of 350 mA (typ). The TPS788xx family uses the SR pin to program the output voltage slew rate to control the in-rush current. This is specifically used in the USB application where large load capacitance is present at start-up. The TPS788xx devices use only 17 uA of quiescent current and exhibit only 56 uV RMS of output voltage noise using a 10 uF output capacitor.
The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 150 mV at 150 mA of load current, and is directly proportional to the load current.
TPS78825 特性
- 150-mA Low-Dropout Regulator
- Available in 2.5 V, 3.3 V
- Programmable Slew Rate Control
- Output Noise Typically 56 uV RMS
- Only 17 uA Quiescent Current at 150 mA
- 1 uA Quiescent Current in Standby Mode
- Dropout Voltage Typically 150 mV at 150 mA (TPS78833)
- Over Current Limitation
- -40°C to 125°C Operating Junction Temperature Range
- 5-Pin SOT-23 (DBV) Package
TPS78825 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 |
| TPS78825DBVR |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
PGTI |
| TPS78825DBVRG4 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
PGTI |
| TPS78825DBVT |
ACTIVE |
0 to 70 |
0.42 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
PGTI |
| TPS78825DBVTG4 |
ACTIVE |
0 to 70 |
0.42 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
PGTI |
TPS78825 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 |
| TPS78825DBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78825DBVR |
TPS78825DBVR |
| TPS78825DBVRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78825DBVRG4 |
TPS78825DBVRG4 |
| TPS78825DBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78825DBVT |
TPS78825DBVT |
| TPS78825DBVTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS78825DBVTG4 |
TPS78825DBVTG4 |
TPS78825 应用技术支持与电子电路设计开发资源下载
- TPS78825 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)
TPS78825 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS78825 评估模块 |
TPS78825EVM |
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 |