TPS62807 Step-Down Converter

By Texas Instruments 101

TPS62807 Step-Down Converter

Texas Instruments' TPS62807 step-down converter offers 2.3 µA typical quiescent current, ultra-high efficiency, and an ultra-small solution size. TI’s DCS-control™ topology enables the device to operate with tiny inductors and capacitors with a switching frequency up to 4 MHz. At light-load conditions, it seamlessly enters power save mode to reduce switching cycles and maintain high efficiency.

Connecting the VSEL/MODE pin to GND selects a fixed output voltage. With only one external resistor connected to VSEL/MODE pin, sixteen internally set output voltages can be selected. An integrated R2D (resistor-to-digital) converter reads out the external resistor and sets the output voltage. The same device part number can be used for different applications and voltage rails just by changing a single resistor. The internally set output voltage provides better accuracy compared to a traditional external resistor divider network. Once the device has started up, the DC/DC converter enters forced PWM mode by applying a high level at the VSEL/MODE pin. In this operating mode, the device runs at a typical 4 MHz or 1.5 MHz switching frequency enabling ultra-low output voltage ripple and ultra-high efficiency. The TPS62807 converter comes in a tiny 6-pin WCSP package with 0.35 mm pitch.

Features
  • Input voltage range: 1.8 V to 5.5 V
  • Operating quiescent current: 2.3 µA
  • Switching frequency: up to 4 MHz
  • Output current: 0.6 A/1 A
  • Output voltage accuracy: 1%
  • Selectable power save/forced PWM mode
  • R2D converter for flexible VOUT setting
  • Output voltage range: 0.8 V to 1.55 V
  • Smart enable pin
  • Optimized pinout to support 0201 components
  • DCS control topology
  • Output discharge
  • 100% duty cycle operation
  • Package: tiny 6-pin, 0.35 mm pitch WCSP
  • Supports <0.6 mm solution height
  • Supports <5 mm2 solution size
Applications
  • Wearable electronics
  • IoT
  • 2x AA battery-powered applications
  • Smartphones

新產品:

TPS62807YKAT

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