PAM2310BECADJR Diodes Incorporated

A Product Line of Diodes Incorporated PAM2310 2A LOW NOISE STEP-DOWN DC-DC CONVERTER Description Pin Assignments The PAM2310 is a 2A step-down DC-DC converter. At heavy load, the constant-frequency PWM control performs excellent stability and transient response. No external compensation components are required The PAM2310 supports a range of input voltages from 2.7V to 5.5V, allowing the use of a single Li+/Li -polymer cell, multiple Alkaline/ NiMH cell,and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage. The PAM2310 employs internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 1A. Other key features include over-temperature and short circuit protection, and under-voltage lockout to prevent deep battery discharge. The PAM2310 delivers 2A maximum output current while consuming only 42A of no-load quiescent current. Ultra-low R integrated DS(ON) MOSFETs and 100% duty cycle operation make the PAM2310 an ideal choice for high output voltage, high current applications which Applications require a low dropout threshold. 5V or 3.3V Point of Load Conversion The PAM2310 is available in SOP-8 package. Telecom/Networking Equipment Set Top Boxes Features Storage Equipment Output Current: Up to 2A Video Cards Output Voltage: 0.6V to VIN DDR Power Supply Input Voltage: 2.7V to 5.5V Peak Efficiency up to 95% 42A (typ) No Load Quiescent Current Shutdown Current: <1A 100% Duty Cycle Operation 1.5MHz Switching Frequency Internal Soft Start No external Compensation Required Current Limit Protection Thermal Shutdown SOP-8 Package Typical Applications Circuit R1 = 0.6x 1 + V O R2 1 of 11 September 2012 PAM2310 Diodes Incorporated www.diodes.com Document number: DSxxxxx Rev. 1 - 0 A Product Line of Diodes Incorporated PAM2310 Pin Descriptions Pin Package Name Function Name NC 1 No Connected Bias supply. Chip main power supply pin VIN 2 The drains of the internalmain and synchronous power MOSFET. SW 3 GND GND 4 FB 5 Feedback voltage to internal error amplifier, the threshold voltage is 0.6V. NC 6 No Connected Enable control input. Force this pin voltage above 1.5V, enables the chip, EN 7 and below 0.3V shuts down the device. NC 8 No Connected Functional Block Diagram Absolute Maximum Ratings ( T = +25C, unless otherwise specified.) A These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground. Parameter Rating Unit 6 V Input Voltage V IN SW Pin Voltage V -0.3 to (V +0.3) IN FB Pin Voltage V -0.3 to (V +0.3) IN EN Pin Voltage -0.3 to 6.0 V Maximum Junction Temperature 150 C Storage Temperature Range -65 to 150 C Soldering Temperature 300, 5sec C 2 of 11 September 2012 PAM2310 Diodes Incorporated www.diodes.com Document number: DSxxxxx Rev. 1 - 0