The TPS6012x step-up, regulated charge pumps generate a 3.3-V or 3-V ±4% output voltage from a 1.8-V to 3.6-V input voltage (two alkaline, NiCd, or NiMH batteries). They can deliver an output current of at least 200 mA (100 mA for the TPS60122 and TPS60123), all from a 2-V input. Four external capacitors are needed to build a complete high efficiency dc/dc charge pump converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects between a 1.5x or doubler conversion mode. From a 2-V input, all ICs can start with full load current.

The devices feature the power-saving pulse-skip mode to extend battery life at light loads. TPS60120, TPS60122, and TPS60124 include a low battery comparator. TPS60121, TPS60123, and TPS60125 feature a power-good output. The logic shutdown function reduces the supply current to a maximum of 1uA and disconnects the load from the input. Special current-control circuitry prevents excessive current from being drawn from the battery during start-up. This dc/dc converter requires no inductors, therefore EMI is of low concern. It is available in the small, thermally enhanced 20-pin PowerPAD^TM package (PWP).

• High Average Efficiency Over Input Voltage Range Because of Special Switching Topology
• Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V
• Regulated 3.3-V or 3-V ±4% Output Voltage
• No Inductors Required, Low EMI
• Only Four External Components Required
• 55-uA Quiescent Supply Current
• 0.05-uA Shutdown Current
• Load Disconnected in Shutdown
• Integrated Low Battery and Power Good Detectors
• Evaluation Module Available (TPS60120EVM-142)
• Applications
  • Applications Powered by Two Battery Cells
  • Portable Instruments
  • Battery-Powered Microprocessor Systems
  • Miniature Equipment
  • Backup-Battery Boost Converters
  • PDAs, Organizers, Laptops
  • MP-3 Portable Audio Players
  • Handheld Instrumentation
  • Medical Instruments (e.g., Glucose Meters)
  • Cordless Phones

PowerPAD is a trademark of Texas Instruments Incorporated.

• Vin (Min) (V)
• 1.8
• Vin (Max) (V)
• 3.6
• Vout (Min) (V)
• 3.3
• Vout (Max) (V)
• 3.3
• Iout (Max) (A)
• 0.2
• Regulated outputs (#)
• 1
• Switching frequency (Min) (kHz)
• 210
• Switching frequency (Max) (kHz)
• 450
• Iq (Typ) (mA)
• 0.055
• Features
• Enable, Power Good
• Rating
• Catalog

TPS60121的完整型号有：TPS60121PWP，以下是这些产品的关键参数及官网采购报价：

TPS60121PWP，工作温度：-40 to 85，封装：HTSSOP (PWP)-20，包装数量MPQ：70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TPS60121PWP的批量USD价格：1.022（1000+）

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