The TPS6014x step-up, regulated charge pumps generate a 5-V ±4% output voltage from a 1.8-V to 3.6-V input voltage range. The devices are typically powered by two alkaline, NiCd, or NiMH battery cells and provide an output current of minimum 100 mA from a 2-V input. Only four external capacitors are needed to build a complete voltage tripler charge pump.

The devices regulate the output by using the pulse-skip topology. The controller is optimized for lowest output voltage ripple over the complete output current range. The output peak current and therefore the output voltage ripple are drastically reduced compared to a conventional pulse-skip topology by regulating the charge pump output resistance. At light loads the maximum output resistance is limited to assure a low quiescent current.

The TPS60140 includes a low-battery comparator that issues a warning if the battery voltage drops below a user-adjustable threshold voltage. The TPS60141 features a power-good output that goes active when the output voltage reaches 90% of its nominal value.

The logic shutdown function disables the converter, reduces the supply current to a maximum of 1 μA and disconnects the output 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 little concern. The TPS6014x operates over a free-air temperature range of –40°C to 85°C. It is available in the small, thermally enhanced 20-pin HTSSOP package (PWP).

• Regulated 5 V ±4% Output Voltage
• Up to 100-mA Output Current
• 1.8-V to 3.6-V Input Voltage Range
• 65-μA Quiescent Supply Current
• 0.05-μA Shutdown Current, Battery Is Isolated From Load in Shutdown
• Integrated Low-Battery or Power-Good Indicator
• Low-Output Voltage Ripple Over Complete Output Current Range
• Easy-to-Design With Low-EMI Power Supply Because No Inductors Are Required
• Evaluation Module Available (TPS60140EVM-144)
• Available in a 6.5-mm × 4.4-mm 20-Pin HTSSOP Package

• Vin (Min) (V)
• 1.8
• Vin (Max) (V)
• 3.6
• Vout (Min) (V)
• 5
• Vout (Max) (V)
• 5
• Iout (Max) (A)
• 0.1
• Regulated outputs (#)
• 1
• Switching frequency (Min) (kHz)
• 210
• Switching frequency (Max) (kHz)
• 450
• Iq (Typ) (mA)
• 0.055
• Features
• Enable
• Rating
• Catalog

TPS60140的完整型号有：TPS60140PWP、TPS60140PWPR，以下是这些产品的关键参数及官网采购报价：

TPS60140PWP，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TPS60140PWP的批量USD价格：.83（1000+）

TPS60140PWPR，工作温度：-40 to 85，封装：HTSSOP (PWP)-20，包装数量MPQ：2000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TPS60140PWPR的批量USD价格：.692（1000+）

TPS60140EVM-144 — 2 节电池，5.0V，最小 100mA 三倍电压充电泵 EVM

The TPS60140EVM-144 is an evaluation tool for the regulated voltage tripler charge pump TPS60140. The package includes a tested evalutation module (EVM), an EVM user's guide (SLVU023) that contains the schematic, bill of material, components placement, layout and the setup of the EVM. The (...)

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