PAM2316AGCADJ Diodes Incorporated

A Product Line of Diodes Incorporated PAM2316 2.5MHz, FAST TRANSIENT 2A STEP-DOWN CONVERTER Description Pin Assignments The PAM2316 is a 2A step-down sync converter. The 2.5MHz switching frequency enables the use of small external components. The ultra-small 2mm x 2mm footprint and high efficiency make the PAM2316 an ideal choice for portable applications. The PAM2316 delivers A maximum output current while consuming only 55A no load quiescent current. Low R integrated DS(ON) MOSFETs and 100 duty cycle operation make the PAM2316 the ideal choice for high output voltage, high current applications which require a low dropout threshold. The PAM2316 provides excellent transient response and output accuracy across the operating range. The PAM2316 maintains high efficiency throughout the load range. The PAM2316 automatically optimizes efficiency during light load mode (PSM) and maintains constant frequency and low output ripple Applications during PWM mode. Cellular Phone Over-temperature and short circuit protection safeguard the PAM2316 Digital Cameras and system components from damage. Hard Disk Drives MP3 Players The PAM2316 is available in a Pb-free, ultrasmall, low profile, 8-pin PDAs and Handheld Computers 2mmx2mm TDFN package. The product is rated over a temperature Portable Media Players range of -40C to +85C. USB Devices Wireless Network Cards Features 2A Maximum Output Current Tiny 1.0H Chip Inductor Excellent Transient Response Input Voltage: 2.7V to 5.5V Ultra-small, Low Profile 8-pin 2mmx2mm TDFN Package Fixed or Adjustable Output Voltage - Adjustable Output Voltage: 1.0V to 3.3V High Efficiency with 2.5MHz Switching Frequency 55A No Load Quiescent Current 100% Duty Cycle Low-Dropout Operation Internal Soft Start Over-Temperature and Current Limit Protection <1A Shutdown Current -40C to +85C Temperature Range Pb-Free/Halogen Free Package RoHS/REACH Compliant 1 of 11 November 2012 PAM2316 Diodes Incorporated www.diodes.com Document number: DSxxxxx Rev. 1 - 1 A Product Line of Diodes Incorporated PAM2316 Typical Applications Circuit V = 0.6* (1+R1/R2) OUT Pin Descriptions Pin Pin Function Number Name Main power ground return pin. Connect to the output and input capacitor return. 1 PGND Input power supply tied to the source of the high side P-channel MOSFET. 2 PVIN 3 VIN Power supply supplies power for the internal circuitry. 4 FB Feedback input pin. Feedback voltage to internal error amplifier, the threshold voltage is 0.6V. 5 AGND Analog ground. This pin is internally connected to the analog ground of the control circuitry. Enable pin. A logic low disables the converter and it consumes less than 1 A of current.When connected high, it 6 EN resumes normal operation. Switching node. Connect the inductor to this pin. It is internally connected to the drain of both high and low side 7, 8 SW MOSFETs. Functional Block Diagram 2 of 11 November 2012 PAM2316 Diodes Incorporated www.diodes.com Document number: DSxxxxx Rev. 1 - 1