The TPS781 family of low-dropout (LDO) regulators offer the benefits of ultralow power (I_Q = 1µA), miniaturized packaging (2×2 SON-6), and selectable dual-level output voltage levels. An adjustable version is also available, but does not have the capability to shift voltage levels.

The V_SET pin allows the end user to switch between two voltage levels on-the-fly through a microprocessor-compatible input. This LDO is designed specifically for battery-powered applications where dual-level voltages are needed. With ultralow I_Q (1µA), microprocessors, memory cards, and smoke detectors are ideal applications for this device.

The ultralow-power and selectable dual-level output voltages allow designers to customize power consumption for specific applications. Designers can now shift to a lower voltage level in a battery-powered design when the microprocessor is in sleep mode, further reducing overall system power consumption. The two voltage levels are preset at the factory through a unique architecture using an EPROM. The EPROM technique allows for numerous output voltage options between V_SET low (1.5V to 4.2V) and V_SET high (2.0V to 3.0V) in the fixed output version only. See the table in this data sheet or consult with your local factory representative for exact voltage options and ordering information; minimum order quantities may apply.

The TPS781 series are designed to be compatible with the TI MSP430 and other similar products. The enable pin is compatible with standard CMOS logic. This LDO is stable with any output capacitor greater than 1.0µF. Therefore, implementations of this device require minimal board space because of miniaturized packaging and a potentially small output capacitor. The TPS781 series I_Q (1µA) also come with thermal shutdown and current limit to protect the device during fault conditions. All packages have an operating temperature range of T_J = -40°C to +125°C. For high-performance applications requiring a dual-level voltage option, consider the TPS780 series, with an I_Q of 500nA and dynamic voltage scaling.

• Low IQ: 1μA
• 150mA, Low-Dropout Regulator with Pin-Selectable Dual Voltage Level Output
• Low Dropout: 200mV at 150mA
• 3% Accuracy Over Load/Line/Temperature
• Available in Dual-Level, Fixed Output Voltages from 1.5V to 4.2V Using Innovative Factory EPROM Programming
• Available in an Adjustable Version from 1.22V to 5.25V or a Dual-Level Output Version
• VSET Pin Toggles Output Voltage Between Two Factory-Programmed Voltage Levels
• Stable with a 1.0μF Ceramic Capacitor
• Thermal Shutdown and Overcurrent Protection
• CMOS Logic Level-Compatible Enable Pin
• Available in DDC (TSOT23-5) or DRV (2mm × 2mm SON-6) Package Options
• APPLICATIONS
  • TI MSP430 Attach Applications
  • Power Rails with Programming Mode
  • Dual Voltage Levels for Power-Saving Mode
  • Wireless Handsets, Smartphones, PDAs, MP3 Players, and Other Battery-Operated Handheld Products

All other trademarks are the property of their respective owners

• Output options
• Fixed Output, Programmable Output
• Iout (Max) (A)
• 0.15
• Vin (Max) (V)
• 5.5
• Vin (Min) (V)
• 2.2
• Vout (Max) (V)
• 5.25
• Vout (Min) (V)
• 1.2
• Fixed output options (V)
• 2, 2.2, 2.5, 3.3
• Noise (uVrms)
• 86
• Iq (Typ) (mA)
• 0.0005
• Thermal resistance θJA (°C/W)
• 65
• Rating
• Catalog
• Load capacitance (Min) (μF)
• 1
• Regulated outputs (#)
• 1
• Features
• Enable
• Accuracy (%)
• 3
• PSRR @ 100 KHz (dB)
• 13
• Dropout voltage (Vdo) (Typ) (mV)
• 200
• Operating temperature range (C)
• -40 to 125

TPS781的完整型号有：TPS78101DDCR、TPS78101DDCT、TPS78101DRVR、TPS78101DRVT、TPS781250200DDCR、TPS781250200DDCT、TPS781330220DDCR、TPS781330220DDCT、TPS781330220DRVR、TPS781330220DRVT，以下是这些产品的关键参数及官网采购报价：

TPS78101DDCR，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS78101DDCR的批量USD价格：0.325（1000+）

TPS78101DDCT，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS78101DDCT的批量USD价格：0.39（1000+）

TPS78101DRVR，工作温度：-40 to 125，封装：WSON (DRV)-6，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TPS78101DRVR的批量USD价格：0.329（1000+）

TPS78101DRVT，工作温度：-40 to 125，封装：WSON (DRV)-6，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TPS78101DRVT的批量USD价格：0.395（1000+）

TPS781250200DDCR，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS781250200DDCR的批量USD价格：0.325（1000+）

TPS781250200DDCT，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS781250200DDCT的批量USD价格：0.39（1000+）

TPS781330220DDCR，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS781330220DDCR的批量USD价格：0.325（1000+）

TPS781330220DDCT，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS781330220DDCT的批量USD价格：0.39（1000+）

TPS781330220DRVR，工作温度：-40 to 125，封装：WSON (DRV)-6，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TPS781330220DRVR的批量USD价格：0.329（1000+）

TPS781330220DRVT，工作温度：-40 to 125，封装：WSON (DRV)-6，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：NIPDAUAG，TI官网TPS781330220DRVT的批量USD价格：0.395（1000+）

TPS781250200 PSpice Transient Model (Rev. A)

此低功耗模式方案实现了小于 0.1 mW 的处理器功耗，同时使自刷新状态的 LPDDR2 存储器功耗保持在大约 1.6 mW。该系统解决方案由 AM437x Sitara 处理器、LPDDR2 存储器和 TPS65218 电源管理 IC 组成，并已针对新型低功耗模式进行优化，同时支持传统低功耗模式。通过关闭除 RTC 电源外的所有处理器电源，可最大限度降低处理器电源。包括电源控制在内的系统电源状态变换可由单个接口信号（PMIC_PWR_EN 信号）借助 PMIC 寄存器编程来执行。