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Rating |
Catalog |
Topology |
Buck, Step-Down Converter, Synchronous Buck |
Iout (max) (A) |
1.6 |
Vin (max) (V) |
5.5 |
Vin (min) (V) |
2.5 |
Vout (max) (V) |
1.5 |
Vout (min) (V) |
1.5 |
Features |
Enable, Output discharge, Spread Spectrum |
EMI features |
Frequency Dithering, Integrated capacitors, Spread Spectrum |
Operating temperature range (°C) |
-40 to 85 |
Switch current limit (typ) (A) |
2.1 |
Type |
Converter (Integrated Switch), DC/DC converter, Module |
Duty cycle (max) (%) |
60 |
Control mode |
Voltage mode |
Switching frequency (min) (kHz) |
5500 |
Switching frequency (max) (kHz) |
5500 |
USIP (SIP)-9-See data sheet
The TPS8268x device is a complete DC/DC step-down power supply optimized for small solution size. Included in the package are the switching regulator, inductor and input/output capacitors. Integration of all passive components enables a tiny solution size of only 6.7mm2.
The TPS8268x is based on a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications in which high load currents in a very small solution size and height are required. The TPS8268x is optimized for high efficiency and low output voltage ripple and supports up to 1600-mA load current. With an input voltage range of 2.5-V to 5.5-V, the device supports applications powered by Li-Ion batteries as well as 5-V and 3.3-V rails.
The TPS8268x operates at a 5.5-MHz switching frequency with spread spectrum capability. For noise-sensitive applications, this provides a lower noise regulated output, as well as low noise at the input. The device supports a fixed output voltage, requiring no external feedback network.
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 with the same size.
The TPS8268x is packaged in a compact (2.3mm × 2.9mm) and low profile BGA package suitable for automated assembly by standard surface mount equipment.