Texas Instruments TPS561201

Description

The TPS561201 and TPS561208 are simple, easy-touse,1-A synchronous step-down converters in SOT23package.The devices are optimized to operate with minimumexternal component counts and also optimized toachieve low standby current.These switch mode power supply (SMPS) devicesemploy D-CAP2 mode control providing a fasttransient response and supporting both lowequivalent series resistance (ESR) output capacitorssuch as specialty polymer and ultra-low ESR ceramiccapacitors with no external compensationcomponents.The TPS561201 operates in pulse skip mode, whichmaintains high efficiency during light load operation.The TPS561201 and TPS561208 are available in a 6-pin 1.6 × 2.9 (mm) SOT (DDC) package andspecified from –40°C to 125°C of junctiontemperature.

Features

TPS561201 and TPS561208 1-A Converter Integrated 140-mΩ and 84-mΩ FETsD-CAP2™ Mode Control With Fast Transient ResponseInput Voltage Range: 4.5 V to 17 VOutput Voltage Range: 0.76 V to 7 VPulse-Skip Mode (TPS561201) or Continuous Current Mode (TPS561208)580-kHz Switching FrequencyLow Shutdown Current Less than 10 µA2% Feedback Voltage Accuracy (25°C)Startup from Pre-Biased Output VoltageCycle-by-Cycle Overcurrent LimitHiccup-Mode Overcurrent ProtectionNon-Latch UVP and TSD ProtectionsFixed Soft-Start: 1.0 msCreate a Custom Design Using the TPS56120x With the WEBENCH® Power Designer

Typical applications

• Surveillance
• High Definition Blu-ray™ Disc Players/ Digital Set-Top Box (STB)
• • Digital TV Power Supply
• Networking Home Terminal

More information

• Datasheet
• IC product information