TPS77428 具有复位功能并采用 MSOP-8 封装的快速瞬态响应 250mA LDO 稳压器
TPS77428 描述
The TPS773xx and TPS774xx are low-dropout regulators with integrated power-on reset and power good (PG) function respectively. These devices are capable of supplying 250 mA of output current with a dropout of 200 mV (TPS7733, TPS77433). Quiescent current is 92 uA at full load dropping down to 1 uA when device is disabled. These devices are optimized to be stable with a wide range of output capacitors including low ESR ceramic (10 uF) or low capacitance (1 uF) tantalum capacitors. These devices have extremely low noise output performance (55 uVrms) without using any added filter capacitors. TPS773xx and TPS774xx are designed to have fast transient response for larger load current changes.
|
TPS77401 |
TPS77415 |
TPS77418 |
TPS77427 |
TPS77428 |
TPS77433 |
TPS77450 |
| Iout(Max)(A) |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
| Vdo(Typ)(mV) |
125 |
125 |
125 |
125 |
270 |
200 |
125 |
| Iq(Typ)(mA) |
0.09 |
0.09 |
0.09 |
0.09 |
0.09 |
0.09 |
0.09 |
| Vin(Min)(V) |
2.7 |
2.7 |
2.7 |
2.7 |
3.07 |
3.5 |
5.125 |
| Vin(Max)(V) |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
| Vout(Min)(V) |
|
1.5 |
1.8 |
2.7 |
2.8 |
3.3 |
5 |
| Vout(Max)(V) |
|
1.5 |
1.8 |
2.7 |
2.8 |
3.3 |
5 |
| Vout Adj(Min)(V) |
1.5 |
|
|
|
|
|
|
| Vout Adj(Max)(V) |
5.5 |
|
|
|
|
|
|
| Output Capacitor(uF) |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
| Output Capacitor Type |
Tantalum |
Tantalum |
Tantalum |
Tantalum |
Tantalum |
Tantalum |
Tantalum |
| Fixed Output Options(V) |
|
1.5 |
1.8 |
2.7 |
2.8 |
3.3 |
5 |
| Pin/Package |
8MSOP |
8MSOP |
8MSOP |
8MSOP |
8MSOP |
8MSOP |
8MSOP |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
TPS77428 特性
- Open Drain Power-On Reset With 220-ms Delay (TPS773xx)
- Open Drain Power-Good (PG) Status Output (TPS774xx)
- 250-mA Low-Dropout Voltage Regulator
- Available in 1.5-V, 1.6-V (TPS77428 Only), 1.8-V, 2.7-V, 2.8-V, 3.3-V, 5.0-V Fixed Output and Adjustable Versions
- Dropout Voltage Typically 200 mV at 250 mA (TPS77333, TPS77433)
- Ultralow 92-uA Quiescent Current (Typ)
- 8-Pin MSOP (DGK) Package
- Low Noise (55 uVrms) Without an External Filter (Bypass) Capacitor (TPS77318, TPS77418)
- 2% Tolerance Over Specified Conditions For Fixed-Output Versions
- Fast Transient Response
- Thermal Shutdown Protection
- See the TPS779xx Family of Devices for Active High Enable
TPS77428 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 |
| TPS77428DGK |
ACTIVE |
-40 to 125 |
0.75 | 1ku |
MSOP (DGK) | 8 |
80 | TUBE |
AWF |
| TPS77428DGKG4 |
ACTIVE |
-40 to 125 |
0.75 | 1ku |
MSOP (DGK) | 8 |
80 | TUBE |
AWF |
| TPS77428DGKR |
ACTIVE |
-40 to 125 |
0.70 | 1ku |
MSOP (DGK) | 8 |
2500 | LARGE T&R |
AWF |
| TPS77428DGKRG4 |
ACTIVE |
-40 to 125 |
0.70 | 1ku |
MSOP (DGK) | 8 |
2500 | LARGE T&R |
AWF |
TPS77428 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 |
| TPS77428DGK |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS77428DGK |
TPS77428DGK |
| TPS77428DGKG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS77428DGKG4 |
TPS77428DGKG4 |
| TPS77428DGKR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS77428DGKR |
TPS77428DGKR |
| TPS77428DGKRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS77428DGKRG4 |
TPS77428DGKRG4 |
TPS77428 应用技术支持与电子电路设计开发资源下载
- TPS77428 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)
TPS77428 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS77428 评估模块 |
TPS77428EVM |
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 |