TPS7248 微功耗非常低压降 (LDO) PMOS 电压稳压器

TPS7248 描述

The TPS72xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, micropower operation, and miniaturized packaging. These regulators feature extremely low dropout voltages and quiescent currents compared to conventional LDO regulators. Offered in small-outline integrated-circuit (SOIC) packages and 8-terminal thin shrink small-outline (TSSOP), the TPS72xx series devices are ideal for cost-sensitive designs and for designs where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be replaced by a PMOS device. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low - maximum of 85 mV at 100 mA of load current (TPS7250) - and is directly proportional to the load current (see Figure 1).

TPS7201 TPS7225 TPS7230 TPS7233 TPS7248 TPS7250
Iout(Max)(A) 0.25   0.25   0.25   0.25   0.25   0.25  
Vdo(Typ)(mV) 190   560   390   360   216   190  
Iq(Typ)(mA) 0.18   0.08   0.18   0.15   0.18   0.18  
Vin(Min)(V) 3   3.65   3.96   3.98   5.24   5.41  
Vin(Max)(V) 10   10   10   10   10   10  
Vout(Min)(V)   2.5   3   3.3   4.85   5  
Vout(Max)(V)   2.5   3   3.3   4.85   5  
Vout Adj(Min)(V) 1.2            
Vout Adj(Max)(V) 9.75            
Accuracy(%)           2  
Output Capacitor(uF) 10   10   10   10   10   10  
Output Capacitor Type Tantalum   Tantalum   Tantalum   Tantalum   Tantalum   Tantalum  
Fixed Output Options(V)   2.5   3   3.3   4.85   5  
Pin/Package 8PDIP, 8SOIC, 8TSSOP   8PDIP, 8SOIC, 8TSSOP   8PDIP, 8SOIC, 8TSSOP   8PDIP, 8SOIC, 8TSSOP   8PDIP, 8SOIC, 8TSSOP   8PDIP, 8SOIC, 8TSSOP  
Rating Catalog   Catalog   Catalog   Catalog   Catalog   Catalog  
Regulated Outputs(#) 1   1   1   1   1   1
TPS7248 特性
TPS7248 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
TPS7248QD ACTIVE -40 to 125 0.75 | 1ku SOIC (D) | 8 75 | TUBE 7248Q
TPS7248QDG4 ACTIVE -40 to 125 0.75 | 1ku SOIC (D) | 8 75 | TUBE 7248Q
TPS7248QDR ACTIVE -40 to 125 0.65 | 1ku SOIC (D) | 8 2500 | LARGE T&R 7248Q
TPS7248QDRG4 ACTIVE -40 to 125 0.65 | 1ku SOIC (D) | 8 2500 | LARGE T&R 7248Q
TPS7248QP ACTIVE -40 to 125 0.65 | 1ku PDIP (P) | 8 50 | TUBE TPS7248QP
TPS7248QPE4 ACTIVE -40 to 125 0.65 | 1ku PDIP (P) | 8 50 | TUBE TPS7248QP
TPS7248QPW ACTIVE -40 to 125 0.75 | 1ku TSSOP (PW) | 8 150 | TUBE PT7248
TPS7248QPWG4 ACTIVE -40 to 125 0.75 | 1ku TSSOP (PW) | 8 150 | TUBE PT7248
TPS7248QPWLE OBSOLETE -40 to 125   TSSOP (PW) | 8   PT7248
TPS7248 应用技术支持与电子电路设计开发资源下载
  1. TPS7248 数据资料 dataSheet 下载.PDF
  2. 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
  3. Dual MOSFET Driver (PDF  498 KB)
  4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)   (PDF  2206 KB)
  5. LDO PSRR Measurement Simplified   (PDF  140 KB)
  6. LDO Noise Demystified   (PDF  782 KB)
  7. 标准线性产品交叉参考 (Rev. D)   (PDF  1058 KB)
  8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  9. 所选封装材料的热学和电学性质 (PDF 645 KB)
  10. 高速数据转换 (PDF 1967 KB)
TPS7248 工具与软件
名称 型号 公司 工具/软件类型
TPS7248EVM 评估模块 TPS7248EVM Texas Instruments 开发电路板/EVM