Enpirion Power Datasheet EN5322QI 2A PowerSoC Synchronous Buck DC-DC Converter with Integrated Inductor General Description Ordering Information Part Number Temp Rating (C) Package The EN5322 is a high efficiency synchronous EN5322QI -40 to +85 24-pin QFN T&R buck converter with integrated inductor, PWM EVB-EN5322QI QFN Evaluation Board controller, MOSFETS, and compensation providing the smallest possible solution size. Features The 4 MHz operation allows for the use of tiny Revolutionary Integrated Inductor MLCC capacitors. It also enables a very wide 2 Total Solution Footprint as Small as 50 mm control loop bandwidth providing excellent transient performance and reduced output 4 mm x 6 mm x 1.1 mm QFN Package impedance. The internal compensation is 4 MHz Fixed Switching Frequency designed for unconditional stability across all High Efficiency, up to 95 % operating conditions. Low Ripple Voltage 8 mV Typical P-P Three VID output voltage select pins provide 2% Initial V Accuracy with VID Codes OUT seven pre-programmed output voltages along 2% Initial 0.6 V Feedback Voltage Accuracy with an option for external resistor divider. 2.4 V to 5.5 V Input Voltage Range Output voltage can be programmed on-the-fly to 2 A Continuous Output Current Capability provide fast, dynamic voltage scaling with smooth transitions between VID programmed Fast Transient Response output voltages. Low Dropout Operation: 100 % Duty Cycle Power OK Signal with 5 mA Sink Capability Applications Dynamic Voltage Scaling with VID Codes Point of Load Regulation for Low Power 17 A Typical Shutdown Current Processors, Network Processors, DSPs Under Voltage Lockout, Over Current, Short FPGAs and ASICs Circuit, and Thermal Protection Replacement of LDOs RoHS Compliant MSL 3 260 C Reflow Noise Sensitive Applications such as A/V and RF Computing, Computer Peripherals, Storage, Application Circuit Networking, and Instrumentation DSL, STB, DVR, DTV, and iPC ON ENABLE OFF V VSENSE OUT V IN PVIN VOUT C IN VS0 EN5322 VS1 C OUT POK 10 uF VS2 47 uF PGND PGND AVIN AGND 1 uF Figure 1. Typical Application Circuit 1 www.altera.com/enpirion EN5322QI Absolute Maximum Ratings CAUTION: Absolute maximum ratings are stress ratings only. Functional operation beyond recommended operating conditions is not implied. Stress beyond absolute maximum ratings may cause permanent damage to the device. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. Absolute Maximum Electrical Ratings MIN MAX Voltages on: PVIN, AVIN, VOUT -0.3 V 6.5 V Voltages on: VSENSE, VS0, VS1, VS2, ENABLE, POK -0.3 V V IN Voltage on: VFB -0.3 V 2.7 V ESD Rating (Human Body Model) 2 kV ESD Rating (Charge Device Model) 500 V Absolute Maximum Thermal Ratings Ambient Operating Range -40 C +85 C Storage Temperature Range -65 C +150 C Reflow Peak Body Temperature MSL3 (10 s) +260 C Thermal Characteristics SYMBOL PARAMETER MIN TYP MAX UNITS Thermal Shutdown T 155 C SD Thermal Shutdown Hysteresis TSDH 15 C Thermal Resistance: Junction to Case (0 LFM) 6 C/W JC Thermal Resistance: Junction to Ambient (0 LFM)* 36 C/W JA * Based on a 2 oz. copper board and proper thermal design in line with JEDEC EIJ-JESD51 standards Recommended Operating Conditions PARAMETER SYMBOL MIN MAX UNITS Input Voltage Range VIN 2.4 5.5 V Output Voltage Range V 0.6 V - V V OUT IN DROPOUT Output Current I 0 2 A LOAD Operating Junction Temperature TJ -45 +125 C Note: VDROPOUT is defined as (ILOAD x Dropout Resistance) including temperature effect. Electrical Characteristics VIN = 5 V and TA = 25 C, unless otherwise noted. SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Operating Input Voltage VIN 2.4 5.5 V Under Voltage Lockout VUVLO VIN going low to high 2.2 V UVLO Hysteresis 0.15 V Output Voltage with VID TA = 25 C VIN = 5V Codes (Note 1) ILOAD = 100 mA VS2 VS1 VS0 VOUT (V) 0 0 0 3.3 -2.0 +2.0 0 0 1 2.5 -2.0 +2.0 V OUT % 0 1 0 1.8 -2.0 +2.0 0 1 1 1.5 -2.0 +2.0 1 0 0 1.25 -2.0 +2.0 1 0 1 1.2 -2.0 +2.0 1 1 0 0.8 -2.0 +2.0 2 www.altera.com/enpirion