EV1517DR-00A MPS | Alldatasheet

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3A, 25V, 1.1MHz Step-Up Converter EVALUATION BOARD EV1517DR-00A Rev. 1.0 www.MonolithicPower.com 1 6/8/2005 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. The Future of Analog IC Technology TM TM GENERAL DESCRIPTION The EV1517DR-00A is the evaluation board for the MP1517, a 3A, fixed frequency step-up converter ideal for medium-to-high current step-up applications. The high 1.1MHz switching frequency allows for smaller external components producing a compact solution for size constrained cameras, PDAs and cell phones. The low 0.7V feedback voltage offers higher efficiency in white LED driver applications including cell phone camera flash. The MP1517 regulates the output voltage up to 25V with efficiencies greater than 90%. Soft-start, cycle-by-cycle current limiting, and input under voltage lockout prevent overstressing or damage to sensitive external circuitry at startup and output short-circuit conditions. Current-mode regulation and external compensation components allow the MP1517 control loop to be optimized over a wide variety of input voltage, output voltage, and load current conditions. The MP1517 is available in the thermally enhanced QFN16 (4mm x 4mm) package. ELECTRICAL SPECIFICATIONS Parameter Symbol Value Units Input Voltage V IN 5 V Output Voltage V OUT 12 V Output Current I OUT 1 A

FEATURES

  • 4A Peak Current Limit
  • Low 700mV Feedback Threshold
  • Internal 150m Ω Power Switch
  • Input Range of 2.6V to 25V
  • Over 90% Efficiency
  • Zero Current Shutdown Mode
  • Under Voltage Lockout Protection
  • Open Load Protection
  • Soft-Start Operation
  • Thermal Shutdown
  • Tiny 4mm x 4mm 16-Pin QFN Package

APPLICATIONS

  • Boost and SEPIC Regulators
  • Handheld Computers
  • Cell Phone Camera Flash, PDAs
  • Digital Still and Video Cameras “MPS” and “The Future of Analog IC Technology”, are Trademarks of Monolithic Power Systems, Inc. EV1517DR-00A EVALUATION BOARD Dimensions (2.0”X x 2.0”Y x 0.4”Z) Board Number MPS IC Number EV1517DR-00A MP1517DR 100 EFFICIENCY (%) LOAD CURRENT (mA) MP1517-EC01 Efficiency vs Load Current 1 10 100 1000 VIN = 5V VOUT = 12V VOUT = 18V

EV1517DR-00A – 3A, 25V, 1.1MHz STEP-UP CONVERTER EVALUATION BOARD EV1517DR-00A Rev. 1.0 www.MonolithicPower.com 2 6/8/2005 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. TM EVALUATION BOARD SCHEMATIC 10nF 1nF NS VIN GND EN GND 10nF VOUT GND EV1517_S01 12V B320A-13 20V/3A MP1517 IN FB COMP SW SW 10 1211135 SGND SGND PGND PGND EN SS BP OLS EV1517DR-00A BILL OF MATERIALS Qty Ref Value Description Package Manufacturer Manufacturer P/N 1 C1 10µF Ceramic Cap, 6.3V, X5R 1210 TDK C3225X5R1A106K

2 C2A, C2B 10µF Ceramic Cap, 16V, X7R 1210 TDK C3225X7R1C106M

1 C3 1nF Ceramic Cap, 50V, X7R 0805 TDK C2012X7R1H102K

2 C4, C5 10nF Ceramic Cap, 50V, X7R 0805 TDK C2012X7R1H103K

1 C6 Do Not Stuff

1 D1 Schottky Diode, 20V, 3A, SMA Diodes Inc B320A-13

1 L1 4.7µH 5.6A Sumida CDRH8D43-4R7NC

1 R1 162k Ω Metal Film Res, 1% 0805 Panasonic ERJ-6ENF1623V

1 R2 10k Ω Metal Film Res, 1% 0805 Panasonic ERJ-6ENF1002V

1 R3 20k Ω Metal Film Res, 5% 0805 Panasonic ERJ-6GEYJ203V

1 R4 100k Ω Metal Film Res, 5% 0805 Panasonic ERJ-6GEYJ104V

1 U1 DC-DC Converter MPS MP1517DR

EV1517DR-00A – 3A, 25V, 1.1MHz STEP-UP CONVERTER EVALUATION BOARD EV1517DR-00A Rev. 1.0 www.MonolithicPower.com 4 6/8/2005 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. TM TYPICAL PERFORMANCE CHARACTERISTICS 91.8 91.7 91.6 91.5 91.4 91.3 91.2 91.1 DUTY CYCLE (%) TEMPERATURE (°C) MP1517-TPC03 Maximum Duty Cycle vs Temperature 1.15 1.10 1.05 1.00 FREQUENCY (MHz) -50 0 50 100 150 TEMPERATURE (°C) MP1517-TPC02 Frequency vs Temperature 715 710 705 700 695 690 685 FEEDBACK VOLTAGE (mV) -50 0 50 100 150 TEMPERATURE (°C) MP1517-TPC01 Feedback Voltage vs Temperature -50 0 50 100 150 100 EFFICIENCY (%) LOAD CURRENT (mA) MP1517-EC01 Efficiency vs Load Current 1 10 100 1000 10000 VIN = 12V VOUT = 18V VOUT = 22V 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 CURRENT LIMIT (A) TEMPERATURE (°C) MP1517-TPC06 Current Limit vs Temperature 2.43 2.42 2.41 2.40 2.39 2.38 2.37 2.36 BP VOLTAGE (V) TEMPERATURE (°C) MP1517-TPC05 BP Voltage vs Temperature 940 920 900 880 860 840 820 -50 0 50 100 150 TEMPERATURE (°C) MP1517-TPC04 Operating Supply Current vs Temperature -50 0 50 100 150 -50 0 50 100 150

EV1517DR-00A – 3A, 25V, 1.1MHz STEP-UP CONVERTER EVALUATION BOARD NOTICE: The information in this document is subject to change wi thout notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights ar e not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV1517DR-00A Rev. 1.0 www.MonolithicPower.com 5 6/8/2005 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. TM QUICK START GUIDE The output voltage of this board is set to 12V. The board layout accommodates most commonly used inductors and output capacitors. 1. Preset Power Supply to 2.6V ≤ VIN ≤ 6V. 2. Turn Power Supply off. 3. Connect Power Supply terminals to: Positive (+): VIN, EN Negative (–): GND 4. Connect Load to: Positive (+): VOUT Negative (–): GND 5. Turn Power Supply on after making connections. 6. The MP1517 is enabled on the evaluation board once V IN is applied. To disable the MP1517, disconnect EN from VIN. 7. The output voltage V OUT can be changed by varying R1. Calculate the new value using the formula: 2R1V V1R FB OUT ⎛ −= Where VFB = 0.7V and R2 = 10kΩ For example, for VOUT = 15V Ω=Ω×⎟ V151R Therefore use a 205kΩ standard 1% value resistor.