Part # MAX8560-MAX8562 datasheet

Part Manufacturer: Maxim


Part Description: MAX8560 DS

Part Details:

19-2954; Rev 2; 8/05 EVALUATION KIT AVAILABLE 4MHz, 500mA Synchronous Step-Down DC-DC Converters in Thin SOT and TDFN MAX8560/MAX8561/MAX8562 General Description Features The MAX8560/MAX8561/MAX8562 step-down DC-DC Up to 4MHz PWM Switching Frequency converters are optimized for applications that prioritizesmall size and high efficiency. They utilize a proprietary 500mA Guaranteed Output Current hysteretic-PWM control scheme that switches with fixed 40µA (typ) Quiescent Current frequency and is adjustable up to 4MHz, allowing cus-tomers to trade efficiency for smaller external compo- Adjustable Output Voltage from 0.6V to 2.5V nents. Output current is guaranteed up to 500mA, while Logic-Controlled Output Voltage (MAX8561) quiescent current is only 40µA (typ). Drives External Bypass FET (MAX8562) Internal synchronous rectification greatly improves effi-ciency and eliminates the external Schottky diode ±1.5% Initial Accuracy required in conventional step-down converters. Built-in Soft-Start Eliminates Inrush Current soft-start eliminates inrush current to reduce inputcapacitor requirements. The MAX8561 features logic- Fast Voltage-Positioning Transient Response controlled output voltage, while the MAX8562 drives an Internal Synchronous Rectifier external bypass FET. The MAX8560 is available in a 5-pin Thin SOT23 pack- 2.7V to 5.5V Input age. The MAX8561/MAX8562 are available in space- 0.1µA Logic-Controlled Shutdown saving 8-pin 3mm x 3mm Thin DFN packages. Thermal Shutdown Thin SOT23 or Space-Saving 3mm x 3mm x 0.8mm TDFN Packages Applications Ordering Information Microprocessor/DSP Core Supplies TOP PART TEMP RANGE PIN-PACKAGE MARK Cellular and Smart Phones MAX8560EZK-T -40°C to +85°C 5 Thin SOT23-5 ADRX CDMA/RF Power-Amplifier Supplies MAX8560EZK+T -40°C to +85°C 5 Thin SOT23-5 ADRX PDAs, DSC, and MP3 Players

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MAX8560-MAX8562.pdf Datasheet