The TPS722xx family of LDO regulators is available in fixed voltage options that are commonly used to power the latest DSP’s and microcontrollers with an adjustable option ranging from 1.22 V to 2.5 V. These regulators can be used in a wide variety of applications ranging from portable, battery-powered equipment to PC peripherals. The family features operation over a wide range of input voltages (1.8 V to 5.5 V) and low dropout voltage (50 mV at full load). Therefore, compared to many other regulators that require 2.5-V or higher input voltages for operation, these regulators can be operated directly from two AAA batteries. Also, the typical quiescent current (ground pin current) is low, starting at 85 uA during normal operation and 1 uA in shutdown mode. Thus, these regulators can be operated very efficiently and, in a battery-powered application, help extend the longevity of the device.

Similar LDO regulators require 1-uF or larger output capacitors for stability. However, this regulator uses an internal compensation scheme that stabilizes the feedback loop over the full range of input voltages and load currents with output capacitances as low as 0.1-uF. Ceramic capacitors of this size are relatively inexpensive and available in small footprints.

This family of regulators is particularly suited as a portable power supply solution due to its minimal board space requirement and 1.8-V minimum input voltage. Being able to use two off-the-shelf, AAA, batteries makes system design easier and also reduces component cost. Moreover, the solution will be more efficient than if a regulator with a higher input voltage is used.

• 50-mA LDO
• Available in 1.5-V, 1.6-V, and 1.8-V Fixed-Output and Adjustable Versions
• Low Input Voltage Requirement (Down to 1.8 V)
• Small Output Capacitor, 0.1-uF
• Dropout Voltage Typically 50 mV at 50 mA
• Less Than 1 uA Quiescent Current in Shutdown Mode
• Thermal Protection
• Over Current Limitation
• 5-Pin SOT-23 (DBV) Package
• APPLICATIONS
  • Portable Communication Devices
  • Battery Powered Equipment
  • PCMCIA Cards
  • Personal Digital Assistants
  • Modems
  • Bar Code Scanners
  • Backup Power Supplies
  • SMPS Post Regulation
  • Internet Audio

• Output options
• Adjustable Output, Fixed Output
• Iout (Max) (A)
• 0.05
• Vin (Max) (V)
• 5.5
• Vin (Min) (V)
• 1.8
• Vout (Max) (V)
• 2.5
• Vout (Min) (V)
• 1.22
• Fixed output options (V)
• 1.5, 1.6, 1.8
• Noise (uVrms)
• 90
• Iq (Typ) (mA)
• 0.28
• Thermal resistance θJA (°C/W)
• 66
• Rating
• Catalog
• Load capacitance (Min) (μF)
• 0.1
• Regulated outputs (#)
• 1
• Features
• Enable
• Accuracy (%)
• 3
• PSRR @ 100 KHz (dB)
• 8
• Dropout voltage (Vdo) (Typ) (mV)
• 50
• Operating temperature range (C)
• -40 to 125

TPS722的完整型号有：TPS72201DBVR、TPS72201DBVT、TPS72215DBVT、TPS72216DBVT、TPS72218DBVR、TPS72218DBVT，以下是这些产品的关键参数及官网采购报价：

TPS72201DBVR，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS72201DBVR的批量USD价格：.496（1000+）

TPS72201DBVT，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS72201DBVT的批量USD价格：.595（1000+）

TPS72215DBVT，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS72215DBVT的批量USD价格：.496（1000+）

TPS72216DBVT，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS72216DBVT的批量USD价格：.496（1000+）

TPS72218DBVR，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS72218DBVR的批量USD价格：.496（1000+）

TPS72218DBVT，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS72218DBVT的批量USD价格：.595（1000+）

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