Tps62745dssr wson-12 switching regulator
explain
Tps62745 is a high-efficiency ultra-low-power Synchronous Buck Converter optimized for low-power wireless applications. The regulated output provided by it only consumes 400na quiescent current. The device is powered by two rechargeable lithium-ion batteries (the main chemical components of lithium batteries are Li-SOCl2, li-so2 and Li MnO2) or four to six alkaline batteries. The input voltage range of the device is up to 10V, so it can also be powered through USB port and thin-film solar module. The output voltage is set through four Vsel pins. The voltage range of tps62745 is 1.8V to 3.3V; The voltage range of tps627451 is 1.3V to 2.8V.
Tps62745 is matched with small output capacitor, which has low output ripple voltage and low noise. By pin en_ VIN_ The SW controlled internal input voltage switch connects the supply voltage to pin Vin_ SW。 This switch is dedicated to the external voltage regulator to reduce the input voltage of the external ADC in proportion.
When the power supply voltage is lower than the undervoltage lockout threshold, the switch will automatically open. Tps62745 adopts small 12 pin 3mm × 2mm WSON package.
characteristic
• input voltage (VIN) range from 3.3V to 10V
• 400na quiescent current typical
• efficiency up to 90% when load current > 15 µ a
• output current up to 300mA
• radio frequency (RF) friendly DCS control ™
• low output ripple voltage
• 16 optional output voltages:
– 1.8V to 3.3V (tps62745)
– 1.3V to 2.8V (tps627451)
• integrated input voltage switch
• Vout integrated discharge function
• open drain and normal power output
• micro 3.3 µ h or 4.7 µ h inductor
• small 3mm x 2mm WSON package
Apply
• Bluetooth ® Low power consumption, radio frequency for consumer electronics (RF4CE), short distance low power communication technology (ZigBee)
• industrial instrumentation
• energy acquisition
Tps62745 is a high-efficiency ultra-low-power Synchronous Buck Converter optimized for low-power wireless applications. The regulated output provided by it only consumes 400na quiescent current. The device is powered by two rechargeable lithium-ion batteries (the main chemical components of lithium batteries are Li-SOCl2, li-so2 and Li MnO2) or four to six alkaline batteries. The input voltage range of the device is up to 10V, so it can also be powered through USB port and thin-film solar module. The output voltage is set through four Vsel pins. The voltage range of tps62745 is 1.8V to 3.3V; The voltage range of tps627451 is 1.3V to 2.8V.
Tps62745 is matched with small output capacitor, which has low output ripple voltage and low noise. By pin en_ VIN_ The SW controlled internal input voltage switch connects the supply voltage to pin Vin_ SW。 This switch is dedicated to the external voltage regulator to reduce the input voltage of the external ADC in proportion.
When the power supply voltage is lower than the undervoltage lockout threshold, the switch will automatically open. Tps62745 adopts small 12 pin 3mm × 2mm WSON package.
characteristic
• input voltage (VIN) range from 3.3V to 10V
• 400na quiescent current typical
• efficiency up to 90% when load current > 15 µ a
• output current up to 300mA
• radio frequency (RF) friendly DCS control ™
• low output ripple voltage
• 16 optional output voltages:
– 1.8V to 3.3V (tps62745)
– 1.3V to 2.8V (tps627451)
• integrated input voltage switch
• Vout integrated discharge function
• open drain and normal power output
• micro 3.3 µ h or 4.7 µ h inductor
• small 3mm x 2mm WSON package
Apply
• Bluetooth ® Low power consumption, radio frequency for consumer electronics (RF4CE), short distance low power communication technology (ZigBee)
• industrial instrumentation
• energy acquisition
Schematic diagram of typical application circuit
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