MP8049SDU-LF-P

MP2113 1.5A Synchronous Step-Down Converter with Dynamic Voltage Control EC R NE O EF W M ER D ME E N TO SI D ED G M N P2 S FO 15 R 2 The Future of Analog IC Technology FEATURES DESCRIPTION • The MP2113 is a fully integrated, internally compensated 1.5MHz fixed frequency PWM step-down converter with dynamic output voltage control. User can select two operation modes, forced PWM and asynchronous mode. Force PWM is ideal for high load operation while asynchronous mode improves efficiency at light load condition. Each mode has independent output level that can be set by the user to optimize the power efficiency. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery, with an input range from 2.7V to 6V. The MP2113 can provide 1.5A of load current in forced PWM mode and 50mA in asynchronous mode. Both output voltage can be regulated to as low as 0.6V. • • • • • • • • • • • • • • • MP2113 integrates the high side switch, a synchronous rectifier for forced PWM mode and a Schottky diode for asynchronous mode operation. With peak current mode control and internal compensation, the MP2113 is stable with ceramic capacitors and small inductors. Fault condition protection includes cycle-bycycle current limiting and thermal shutdown. the small APPLICATIONS • • • • • 8-pin DVD+/-RW Drives Smart Phones PDAs Digital Cameras Portable Instruments “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION Efficiency vs. Load Current MP2113 VIN 2.7-6V R4 500K 95 PGOOD IN VOUT SW 1.8V/1.5A CIN 4.7uF R1 301K CTRL FB R3 200K EN DRN GND Vin=3V 90 L1 2.2uH R2 604K COUT 22uF EFFICIENCY(%) N O T R MP2113 is available in 2mmx3mm QFN package. User Selectable Operation Mode: Forced PWM and Asynchronous Mode User Programmable Output Level for Each Operation Mode Dynamic Output Voltage Control Up to 1.5A Output Current for Forced PWM Mode, 50mA for Asynchronous Mode Internal Power MOSFET Switches and Schottky diode Stable with Low ESR Output Ceramic Capacitors Up to 95% Efficiency 1µA Shutdown Current. 1.5MHz Switching Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Short circuit protection Power-Good Output 2.7-6V Input Operation Range Output Adjustable from 0.6V to VIN Available in 8-pin 2x3mm QFN Package Vin=5V 85 80 Vin=6V 75 70 65 60 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 LOAD CURRENT(A) MP2113 Rev. 1.0 4/4/2011 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 1 MP2113 – 1.5A, SYNCHRONOUS STEP-DOWN CONVERTER WITH DYNAMIC VOLTAGE CONTROL ABSOLUTE MAXIMUM RATINGS (1) PACKAGE REFERENCE EC R NE O EF W M ER D ME E N TO SI D ED G M N P2 S FO 15 R 2 IN to GND .................................. –0.3V to + 6.5V SW to GND .......................... –0.3V to VIN + 0.3V PGOOD, EN, CTRL to GND ....... –0.3V to +6.5V FB, DRN to GND ........................ –0.3V to +6.5V Operating Temperature ............. –40°C to +85°C Junction Temperature ............................... 150°C Lead Temperature .................................... 260°C Storage Temperature ............. –65°C to +150°C TOP VIEW FB 1 8 DRN PGOOD 2 7 EN GND 3 6 CTRL SW 4 5 IN Recommended Operating Conditions (2) Supply Voltage VIN ............................. 2.7V to 6V Operating Temperature ............. –40°C to +85°C EXPOSED PAD ON BACKSIDE, CONNECT TO GND Thermal Resistance (3) θJA θJC QFN8 (2mm x 3mm) ............... 50 ...... 12... °C/W Part Number* Temperature Package QFN8 (2mm x 3mm) Top Marking –40°C to +85°C MP2113DS MP2113DD * Notes: 1) Exceeding these ratings may damage the device. 2) The device is not guaranteed to function outside of its operating conditions. 3) Measured on JESD51-7, 4-layer PCB. For Tape & Reel, add suffix –Z (eg. MP2113DD–Z) For RoHS compliant packaging, add suffix –LF (eg. MP2113DD–LF–Z) ELECTRICAL CHARACTERISTICS (4) VIN = VEN = 3.6V, TA = +25°C, unless otherwise noted. Parameters Condition R Supply Current N O T Shutdown Current Thermal Shutdown Trip Threshold PGOOD Upper Trip Threshold PGOOD Lower Trip Threshold PGOOD Output Lower Voltage PGOOD Deglitch Timer EN Trip High Threshold EN Trip Low Threshold EN Input Control CTRL Trip Threshold CTRL Input Current DRN output resistance MP2113 Rev. 1.0 4/4/2011 Min Typ VEN_ = VIN, VCTRL_=VIN (forced PWM Mode) VEN_ = VIN, VCTRL_=0 (asynchronous Mode) VEN =0V, VIN=6V Hysteresis=20°C FB wrt the nominal value FB wrt the nominal value ISINK=1mA Transient Deglitch Max 500 650 55 85 0.1 145 12 -10 1 µA 0.3 200 1.5 VEN=0V VEN=6V Rising edge, VIN-0.8V Falling edge GND VEN=0V to 6V CTRL=VIN CTRL=0 Units 0.1 6 0.5 1.0 1.8 -1 10 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 0.1 0.4 1 100 µA °C % % V µs V V µA µA V V µA Ω MΩ 2 MP2113 – 1.5A, SYNCHRONOUS STEP-DOWN CONVERTER WITH DYNAMIC VOLTAGE CONTROL ELECTRICAL CHARACTERISTICS (continued) (4) EC R NE O EF W M ER D ME E N TO SI D ED G M N P2 S FO 15 R 2 VIN = VEN = 3.6V, TA = +25°C, unless otherwise noted. Parameters Condition IN Undervoltage Lockout Threshold IN Undervoltage Lockout Hysteresis Rising Edge Regulated FB Voltage Regulated FB Voltage Hysteresis FB Input Bias Current SW PFET On Resistance SW NFET On Resistance SW Schottky Diode Forward Voltage SW PFET Leakage Current SW NFET Leakage Current SW PFET Peak Current Limit Oscillator Frequency Note: TA=+25°C -40°C≤ TA≤ +85°C CTRL = 0 (Async Mode) VFB=0.7V ISW=100mA ISW=-100mA ISW= -50mA VEN=0V; VIN=6V; VSW =0V VEN=0V; VIN=6V; VSW =6V Duty Cycle=100%, Current Pulse Width