TPS7A4518 低噪声快速瞬态响应 1.5A LDO 稳压器
TPS7A4518 描述
The TPS7A45xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout, as with many other regulators. In addition to fast transient response, the TPS7A45xx regulators have very low output noise, which makes them ideal for sensitive RF supply applications.
Output voltage range is from 1.21 V to 20 V. The TPS7A45xx regulators are stable with output capacitors as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators
|
TPS7A4501 |
TPS7A4515 |
TPS7A4518 |
TPS7A4525 |
TPS7A4533 |
| Iout(Max)(A) |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
| Vdo(Typ)(mV) |
300 |
300 |
300 |
300 |
300 |
| Iq(Typ)(mA) |
1 |
1 |
1 |
1 |
1 |
| Vin(Min)(V) |
2.1 |
2.1 |
2.1 |
2.1 |
2.1 |
| Vin(Max)(V) |
20 |
20 |
20 |
20 |
20 |
| Vout(Min)(V) |
1.21 |
1.5 |
1.8 |
1.21 |
3.3 |
| Vout(Max)(V) |
20 |
1.5 |
1.8 |
2.5 |
3.3 |
| Output Capacitor(uF) |
10 |
10 |
10 |
10 |
10 |
| Output Capacitor Type |
Ceramic |
Ceramic |
Ceramic |
Ceramic |
Ceramic |
| Fixed Output Options(V) |
|
1.5 |
1.8 |
2.5 |
3.3 |
| Adj Output Options(V) |
1.21 |
|
|
|
|
| Pin/Package |
5DDPAK/TO-263, 6SOT-223 |
5DDPAK/TO-263, 6SOT-223 |
5DDPAK/TO-263, 6SOT-223 |
5DDPAK/TO-263, 6SOT-223 |
5DDPAK/TO-263, 6SOT-223 |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
1 |
TPS7A4518 特性
- Optimized for Fast Transient Response
- Output Current: 1.5 A
- High Output Voltage Accuracy : 1% at 25°C
- Dropout Voltage: 300 mV
- Low Noise: 35 µVRMS (10 Hz to 100 kHz)
- High Ripple Rejection: 68 dB
- 1-mA Quiescent Current
- No Protection Diodes Needed
- Controlled Quiescent Current in Dropout
- Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V
- Adjustable Output from 1.21 V to 20 V
- Less Than 1-µA Quiescent Current in Shutdown
- Stable with 10-µF Output Capacitor
- Stable with Ceramic Capacitors
- Reverse-Battery Protection
- No Reverse Current
- Thermal Limiting
- APPLICATIONS
- 3.3-V to 2.5-V Logic Power Supplies
- Post Regulator for Switching Supplies
TPS7A4518 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 |
| TPS7A4518DCQR |
ACTIVE |
-40 to 125 |
1.30 | 1ku |
SOT-223 (DCQ) | 6 |
2500 | LARGE T&R |
PS7A4518 |
| TPS7A4518DCQT |
ACTIVE |
-40 to 125 |
1.45 | 1ku |
SOT-223 (DCQ) | 6 |
250 | SMALL T&R |
PS7A4518 |
| TPS7A4518KTTR |
ACTIVE |
-40 to 125 |
1.45 | 1ku |
DDPAK/TO-263 (KTT) | 5 |
500 | LARGE T&R |
PS7A4518 |
TPS7A4518 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 |
| TPS7A4518DCQR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS7A4518DCQR |
TPS7A4518DCQR |
| TPS7A4518DCQT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS7A4518DCQT |
TPS7A4518DCQT |
| TPS7A4518KTTR |
Green (RoHS & no Sb/Br) |
CU SN |
Level-3-245C-168 HR |
TPS7A4518KTTR |
TPS7A4518KTTR |
TPS7A4518 应用技术支持与电子电路设计开发资源下载
- TPS7A4518 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)
TPS7A4518 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS7A4518EVM 评估模块 |
TPS7A4518EVM |
Texas Instruments |
开发电路板/EVM |
| TPS7A4518EVM-385 评估模块 |
TPS7A4518EVM-385 |
Texas Instruments |
开发电路板/EVM |
