TPS63901 Series

5.5-V buck-boost converter with 75-nA operating IQ in WCSP package

Catalog

5.5-V buck-boost converter with 75-nA operating IQ in WCSP package

Part	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Synchronous Rectifier	Output Configuration	Current - Output	Voltage - Output (Max)	Topology	Mounting Type	Output Type	Function	Package / Case	Frequency - Switching [Min]	Frequency - Switching [Max]	Supplier Device Package	Voltage - Input (Max) [Max]	Number of Outputs	Voltage - Output (Min/Fixed)
Texas Instruments TPS63901YCJR	1.8 V	-40 °C	125 ¯C		Positive	400 mA	5 V	Buck-Boost	Surface Mount	Programmable	Step-Up/Step-Down	12-XFBGA DSBGA	4 Hz	2 MHz	12-DSBGA (1.46x1.11)	5.5 V	1	1.8 V

Catalog

5.5-V buck-boost converter with 75-nA operating IQ in WCSP package

Key Features

• 1.8-V to 5.5-V input voltage range1.8-V to 5-V output voltage range (100-mV steps)Programmable with external resistorsSEL pin to toggle between two output voltage presets> 400-mA output current for VI ≥ 2.0 V, VO = 3.3 VStackable: parallel multiple devices for higher output current> 90% efficiency at 10-µA load current75-nA quiescent current60-nA shutdown currentSingle-mode operationEliminates mode transitions between buck, buck-boost and boost operationLow output rippleExcellent transient performanceRobust operation featuresIntegrated soft startProgrammable input current limit with eight settings (1 mA to 100 mA and unlimited)Output short-circuit and overtemperature protectionTiny solution sizeSmall 2.2-µH inductor, single 22-µF output capacitor12-ball, 1.5-mm × 1.15-mm, 0.35-mm pitch WCSP package1.8-V to 5.5-V input voltage range1.8-V to 5-V output voltage range (100-mV steps)Programmable with external resistorsSEL pin to toggle between two output voltage presets> 400-mA output current for VI ≥ 2.0 V, VO = 3.3 VStackable: parallel multiple devices for higher output current> 90% efficiency at 10-µA load current75-nA quiescent current60-nA shutdown currentSingle-mode operationEliminates mode transitions between buck, buck-boost and boost operationLow output rippleExcellent transient performanceRobust operation featuresIntegrated soft startProgrammable input current limit with eight settings (1 mA to 100 mA and unlimited)Output short-circuit and overtemperature protectionTiny solution sizeSmall 2.2-µH inductor, single 22-µF output capacitor12-ball, 1.5-mm × 1.15-mm, 0.35-mm pitch WCSP package

Description

The TPS63901 device is a high-efficiency synchronous buck-boost converter with an extremely low quiescent current (75 nA typical). The device has 32 user-programmable output voltage settings from 1.8 V to 5 V. A dynamic voltage-scaling feature lets applications switch between two output voltages during operation; for example, to save power by using a lower system supply voltage during standby operation. With its wide supply voltage range and programmable input current limit (1 mA to 100 mA and unlimited), the device is ideal for use with a wide range of primary like 3S Alkaline, 1S Li-MnO2 or 1S Li-SOCl2, and secondary battery types. The high-output current capability supports commonly-used RF standards like sub-1-GHz, BLE, LoRa, wM-Bus, and NB-IoT. The TPS63901 device is a high-efficiency synchronous buck-boost converter with an extremely low quiescent current (75 nA typical). The device has 32 user-programmable output voltage settings from 1.8 V to 5 V. A dynamic voltage-scaling feature lets applications switch between two output voltages during operation; for example, to save power by using a lower system supply voltage during standby operation. With its wide supply voltage range and programmable input current limit (1 mA to 100 mA and unlimited), the device is ideal for use with a wide range of primary like 3S Alkaline, 1S Li-MnO2 or 1S Li-SOCl2, and secondary battery types. The high-output current capability supports commonly-used RF standards like sub-1-GHz, BLE, LoRa, wM-Bus, and NB-IoT.