TPS826765 Series
600mA Fully Integrated, Low Noise Step-Down Converter in MicroSiP(tm) Package
Manufacturer: Texas Instruments
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Key Features
• 90% Efficiency at 5.5 MHz Operation17µA Quiescent CurrentWide VINRange From 2.3 V to 4.8 V5.5MHz Regulated Frequency OperationSpread Spectrum, PWM Frequency DitheringBest in ClassLoad and Line Transient±2% Total DC Voltage AccuracyAutomatic PFM/PWM Mode SwitchingLow Ripple Light-Load PFM Mode≥35dB VINPSRR (1kHz to 10kHz)Internal Soft Start, 120-µs Start-Up TimeIntegrated Active Power-Down Sequencing(Optional)Current Overload and Thermal ShutdownProtectionSub 1-mm Profile SolutionTotal Solution Size <6.7 mm290% Efficiency at 5.5 MHz Operation17µA Quiescent CurrentWide VINRange From 2.3 V to 4.8 V5.5MHz Regulated Frequency OperationSpread Spectrum, PWM Frequency DitheringBest in ClassLoad and Line Transient±2% Total DC Voltage AccuracyAutomatic PFM/PWM Mode SwitchingLow Ripple Light-Load PFM Mode≥35dB VINPSRR (1kHz to 10kHz)Internal Soft Start, 120-µs Start-Up TimeIntegrated Active Power-Down Sequencing(Optional)Current Overload and Thermal ShutdownProtectionSub 1-mm Profile SolutionTotal Solution Size <6.7 mm2
Description
AI
The TPS8267x device is a complete 600mA, DC/DC step-down power supply intended for low-power applications. Included in the package are the switching regulator, inductor and input/output capacitors. No additional components are required to finish the design.
The TPS8267x is based on a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. The MicroSiP™ DC/DC converter operates at a regulated 5.5-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.
The PFM mode extends the battery life by reducing the quiescent current to 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
The TPS8267x is packaged in a compact (2.3mm × 2.9mm) and low profile (1.0mm) BGA package suitable for automated assembly by standard surface mount equipment.
The TPS8267x device is a complete 600mA, DC/DC step-down power supply intended for low-power applications. Included in the package are the switching regulator, inductor and input/output capacitors. No additional components are required to finish the design.
The TPS8267x is based on a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. The MicroSiP™ DC/DC converter operates at a regulated 5.5-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.
The PFM mode extends the battery life by reducing the quiescent current to 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
The TPS8267x is packaged in a compact (2.3mm × 2.9mm) and low profile (1.0mm) BGA package suitable for automated assembly by standard surface mount equipment.