TPS628437 Series
1.8V to 5.5V input, 600mA ultra-low IQ step-down converter
Manufacturer: Texas Instruments
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Key Features
• 1.8V to 5.5V input voltage range0.4V to 3.6V output voltage range275nA typical quiescent current600mA output current1% output voltage accuracy4nA typical shutdown currentOutput dischargeVSET pin-selectable output voltage through a single resistorTPS628436: 0.4V to 0.8VTPS628437: 0.8V to 1.8VTPS628438: 1.8V to 3.6VDesigned for small passive components1µH inductorDown to effective capacitance of 4µF COUTHigh PSRR (up to 83dB)Low output voltage ripple in power save modeRF-friendly and fast transient DCS-ControlAutomatic transition to no ripple 100% mode0603-inductor and 0402-capacitor size supportedTiny 6-pin, 0.35mm pitch WCSP package with 0.84mm² sizePin-to-pin compatible to theTPS6280xfamily (1A) in WCSP packageAvailable in a 1.60mm × 1.60mm SOT563 package1.8V to 5.5V input voltage range0.4V to 3.6V output voltage range275nA typical quiescent current600mA output current1% output voltage accuracy4nA typical shutdown currentOutput dischargeVSET pin-selectable output voltage through a single resistorTPS628436: 0.4V to 0.8VTPS628437: 0.8V to 1.8VTPS628438: 1.8V to 3.6VDesigned for small passive components1µH inductorDown to effective capacitance of 4µF COUTHigh PSRR (up to 83dB)Low output voltage ripple in power save modeRF-friendly and fast transient DCS-ControlAutomatic transition to no ripple 100% mode0603-inductor and 0402-capacitor size supportedTiny 6-pin, 0.35mm pitch WCSP package with 0.84mm² sizePin-to-pin compatible to theTPS6280xfamily (1A) in WCSP packageAvailable in a 1.60mm × 1.60mm SOT563 package
Description
AI
The TPS62843 is a high-efficiency, step-down converter family with ultra-low operating quiescent current of typically 275nA. The device features a 4nA shutdown (typical) current when disabled.
The device uses DCS-Control with a low and RF-friendly output voltage ripple to power radios.
The device operates with a typical switching frequency of 1.5MHz and extends a high efficiency at light-load down to 100µA load current and below.
3 × 18 pre-defined output voltages can be selected by connecting a resistor to the VSET pin, making the family usable across various applications with a minimum set of passive components.
The TPS62843 is a high-efficiency, step-down converter family with ultra-low operating quiescent current of typically 275nA. The device features a 4nA shutdown (typical) current when disabled.
The device uses DCS-Control with a low and RF-friendly output voltage ripple to power radios.
The device operates with a typical switching frequency of 1.5MHz and extends a high efficiency at light-load down to 100µA load current and below.
3 × 18 pre-defined output voltages can be selected by connecting a resistor to the VSET pin, making the family usable across various applications with a minimum set of passive components.