Evaluates: MAX8792 19-0688 Rev 1 1/10 MAX8792 Evaluation Kit General Description Features The MAX8792 evaluation kit (EV kit) demonstrates the 7V to 24V Input Range standard 10A application circuit of the MAX8792. This Dynamically Selectable 1.5V/1.05V Output Voltage DC-DC converter steps down high-voltage batteries to generate low-voltage core or chipset/RAM bias Dynamically Adjustable Output Voltage supplies in notebook computers. (0 to V Range) IN The MAX8792 EV kit provides a dynamically adjustable 10A Output Current 1.5V/1.05V output voltage from a 7V to 24V battery- 93% Efficiency (V = 7V, V = 1.5V at 3A) input range. It delivers up to 10A output current while IN OUT achieving greater than 90% efficiency. Programmed by 300kHz Switching Frequency a single resistor, the EV kit operates at 300kHz switch- Power-Good Output Indicator (PGOOD) ing frequency and has superior line- and load-transient response. Low-Profile, Surface-Mount Components The EV kit is a fully assembled and tested PCB. It also Fully Assembled and Tested allows the evaluation of other dynamically adjustable output voltages by varying the external reference input, which can be realized by changing resistors R1, R2, and R3. Ordering Information PART TYPE MAX8792EVKIT+ EV Kit +Denotes lead(Pb)-free and RoHS compliant. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 330F, 2.0V, 6m polymer 1F 10%, 6.3V X5R ceramic capacitors (D case) capacitors (0402) C1, C2 2 Panasonic EEFSX0D331XR TDK C1005X5R0J105K C10, C11 2 (6m ESR, 1.9mm height) KEMET C0402C105K9PAC NEC/TOKIN PSGD0E337M7 1000pF 10%, 50V ceramic (7m ESR, 2.8mm height) capacitor (0402) 10F 20%, 6.3V X5R ceramic C3 1 KEMET C0402C102K5RAC capacitor (0805) C12 1 TDK C1005X7R1H102K TDK C2012X5R0J106M KEMET C0805C106K9PAC 10F 20%, 25V X5R ceramic 2A, 30V S chottky di ode ( S M A) capacitors (1210) C4, C5 2 D1 1 N i hon EC 21QS03L TDK C3225X7R1E106M C entral S emi conductor C M S H 2-40M Taiyo Yuden TMK325BJ106MM Green surface-mount LED (0805) C6 0 Not installed, capacitor D2 1 Lite-ON LTST-C170GKT 0.1F 10%, 25V X7R ceramic Digi-Key 160-1179-1-ND capacitor (0603) C7 1 EN, GATE, TDK C1608X7R1E104K Test points PGOOD, REFIN, 5 Murata GRM188R71E104K Keystone 5000 SKIP C8, C9, C13 0 Not installed, capacitors (0603) JU1 1 3-pin header JU2 1 2-pin header JU3 1 4-pin header Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX8792 Evaluation Kit Component List (continued) Component Suppliers DESIGNATION QTY DESCRIPTION SUPPLIER PHONE WEBSITE 1.0H, 3.25m , 16A power Central L1 1 inductor Semiconductor 631-435-1110 www.centralsemi.com Wrth 744 355 2100 Corp. 30V n-channel MOSFET Diodes 805-446-4800 www.diodes.com (PowerPAK 8-pin SO) Incorporated N1 1 Fairchild FDMS8690 Fairchild Vishay/Siliconix SI7634DP 888-522-5372 www.fairchildsemi.com Semiconductor 30V n-channel MOSFET KEMET Corp. 864-963-6300 www.kemet.com (PowerPAK 8-pin SO) N2 1 Murata Electronics www.murata- Fairchild FDS8670 770-436-1300 North America, Inc. northamerica.com Vishay/Siliconix SI7336ADP NEC TOKIN 408-324-1790 www.nec-tokin.com n-channel logic-level MOSFET America, Inc. (SOT23) Nihon Inter N3 1 Fairchild 2N7002 (Top Mark: 702) 847-843-7500 www.niec.co.jp Electronics Corp. Diodes Inc. ZVN3306F (Top Mark: MC) Panasonic Corp. 800-344-2112 www.panasonic.com N4 0 Not installed SANYO Electric 619-661-6835 www.sanyo.com R1, R11 2 49.9k 1% resistors (0603) Co., Ltd. Note: Indicate that you are using the MAX8792 when contacting R2 1 54.9k 1% resistor (0603) these component suppliers. R3 1 97.6k 1% resistor (0603) R4 1 1k 5% resistor (0603) Quick Start R5 0 Not installed, resistor (0402) Recommended Equipment R6 1 200k 1% resistor (0603) 7V to 24V power supply, battery, or notebook AC Not installed, resistors adapter R7, R13 0 (short PC trace) (0603) DC bias power supply, 5V at 100mA R8, R10 0 Not installed, resistors (0603) Dummy load capable of sinking 10A R9 1 0 5% resistor (0603) Digital multimeter (DMM) R12 1 100k 1% resistor (0603) 100MHz dual-trace oscilloscope R14 1 100k 5% resistor (0603) PWM controller (14 TDFN-EP*) U1 1 Maxim MAX8792ETD+ 3 Shunts 1 PCB: MAX8792 EVALUATION KIT+ *EP = Exposed pad. PowerPAK is a registered trademark of Vishay Siliconix. 22 Evaluates: MAX8792