9-456; Rev 0; 0/04 MAX58 Evaluation Kit General Description The MAX58 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a step-up switching regulator, a positive charge pump postregulated by a high-voltage linear regulator, a negative charge pump postregulated by a high-voltage negative linear regulator, and five high-current operational amplifiers. The step-up switching circuit is configured for a +V output () and provides up to 650mA from a +4.5V to +5.5V DC supply voltage. The positive linear regulator is configured for a +5V output (VPOS) using two charge-pump stages providing up to 0mA. The negative linear regulator is configured for a -8V output (VNEG) using a single chargepump stage providing up to 5mA. The DC input source or the step-up switching regulator output provides power for the positive charge-pump input. The DC input source or the power ground provides power for the negative charge-pump input. The MAX58 EV kit demonstrates low-quiescent current and high efficiency for maximum battery life. Operation at.mhz allows the use of tiny surfacemount components. Features +4.5V to +5.5V Input Range Output Voltages +V Output at 650mA () +5V Output at 0mA (VPOS) -8V Output at 5mA (VNEG) Adjustable Output Voltages (External Resistors).MHz Switching Frequency Five High-Performance Operational Amplifiers Low-Profile Surface-Mount Components Fully Assembled and Tested Ordering Information PART TEMP RANGE IC PACKAGE MAX58EVKIT 0 C to +70 C TQFN 5mm x 5mm Component List Evaluates: MAX58 C 00µF ±0%, 6V aluminum electrolytic capacitor Sanyo 6MV00UAX C 0pF ±0%, 50V C0G ceramic capacitor (060) TDK C608C0GHK C, C C4, C5, C6 C7, C8, C9, C4, C6, C7, C4 C9 0µF ±0%, 6.V X5R ceramic capacitors (06) TDK C6X5R0J06M-0.85 4.7µF ±0%, 6V X5R ceramic capacitors (0) TDK C5X5RC475M-.5 ±0%, 50V X7R ceramic capacitors (060) TDK C608X7RH04K C, C9, C0, C, C0 C5 C8 0 Not installed (060) 0.µF ±0%, 0V X7R ceramic capacitor (060) Taiyo Yuden LMK07BJ4KA 0.47µF ±0%, 6V X7R ceramic capacitor (0805) TDK C0X7RC474K-0.60 C 0 Not installed (0) C0 C, C, C 0.47µF ±0%, 5V X5R ceramic capacitor (06) TDK C6X5RE474KT-0.90 0.µF, 50V X7R ceramic capacitors (0805) Taiyo Yuden UMKBJ4MG TDK C0X7RH4M C C 0.0µF ±0%, 5V X7R ceramic capacitor (060) Murata GRM88R7EK TDK C608X7REK 0pF ±5%, 50V COG ceramic capacitor (060) Murata GRM885CH00J TDK C608COGH00J Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at -888-69-464, or visit Maxim s website at www.maxim-ic.com.
MAX58 Evaluation Kit Evaluates: MAX58 D D, D, D4 A 0V Schottky diode (M-flat) Toshiba CMS0.A, 0V Schottky diode Nihon EC0QS0L 00mA, 00V, dual, ultra-fast diodes (SOT) Central Semiconductor CMPD600S (top mark ULS) D5 0 Not installed (SOT) 00mA, 00V, dual, ultra-fast diode (SOT) Central Semiconductor CMPD600S (top mark ULS) JU4 -pin header L Q.µH, A inductor Sumida CDRH6D8-R 00mA, 40V pnp bipolar transistor (SOT) Central Semiconductor CMPT906 (top mark CA) Fairchild MMBT906 (top mark A) Component List Q 00mA, 40V npn bipolar transistor (SOT) Central Semiconductor CMPT904 (top mark CA) Fairchild MMBT904 (top mark A) R 95.kΩ ±% resistor (060) R, R4 0.kΩ ±% resistors (060) R 9kΩ ±% resistor (060) R5, R6 6.8kΩ ±5% resistors (060) R7 kω ±% resistor (060) R8 40.kΩ ±% resistor (060) R9 80kΩ ±5% resistor (060) R0 R0 ±5% resistors (060) R 0Ω ±5% resistor (060) R R6 5 U Not installed (short PC trace) (060) MAX58ETJ (-pin TQFN 5mm x 5mm) Component Suppliers SUPPLIER PHONE FAX WEBSITE Central Semiconductor 56-45-0 56-45-84 www.centralsemi.com Fairchild 408-8-000 408-8-0 www.fairchildsemi.com Murata 770-46-00 770-46-00 www.murata.com Nihon 66-867-555 66-867-698 www.niec.co.jp Sanyo 69-66-6 69-66-055 www.sanyovideo.com Sumida 708-956-0666 708-956-070 www.sumida.com Taiyo Yuden 800-48-496 847-95-0899 www.t-yuden.com TDK 847-90-47 847-90-448 www.component.tdk.com Toshiba 949-455-000 949-859-96 www.toshiba.com/taec Note: Indicate that you are using the MAX58 when contacting these component suppliers. Quick Start The MAX58 EV kit is fully assembled and tested. Follow these steps to verify board operation. Do not turn on the power supply until all connections are completed. Recommended Equipment 4.5V to 5.5V, A DC power supply Digital multimeters (DMMs) ) Turn on the power supply and verify that the stepup regulator output () is +V. ) Verify that the positive linear-regulator output (VPOS) is +5V. ) Verify that the negative linear-regulator output (VNEG) is -8V.
MAX58 Evaluation Kit Table. Jumper JU Functions SHUNT LOCATION - - (default) POSITIVE CHARGE-PUMP INPUT VOLTAGE st stage of a two-stage charge pump powered by st stage of a -stage charge pump powered by Detailed Description The MAX58 EV kit contains a step-up switching regulator and two linear regulators. It operates from a +4.5V to +5.5V DC power supply. The switching frequency is.mhz. As configured, the step-up switching regulator generates a +V output and can provide up to 650mA. VPOS uses two charge-pump stages to generate approximately +5V and can provide up to 0mA. VNEG uses one charge-pump stage to generate approximately -8V and can provide up to 5mA. The EV kit includes five high-current operational amplifiers. Jumper Selection Positive Charge Pump (JU) The positive charge pump can be powered by or. Jumper JU selects the voltage source for the positive charge pump. Table lists the jumper options. The default configuration for the positive charge pump of the MAX58 EV kit is a two-stage charge pump powered by as indicated in Tables and. Negative Charge Pump (JU) The negative charge pump can be connected to or. Jumper JU selects the voltage source for the negative charge pump. Table lists the jumper options. The default configuration for the negative charge pump of the MAX58 EV kit is a one-stage charge pump connected to. Table. Jumper JU Functions SHUNT LOCATION - (default) NEGATIVE CHARGE-PUMP INPUT VOLTAGE Charge pump connected to - Charge pump connected to another charge pump -4 Charge pump connected to Output Voltage Selection Step-Up Switching-Regulator Output Voltage () The MAX58 EV kit s step-up switching-regulator output is set to +V by feedback resistors R and R. To generate output voltages other than +V (+4.7V to +V MAIN ), select different external voltage-divider resistors (R and R). The output capacitors (C4, C5, and C6) are rated at +6V. To set the output voltage greater than +5V, use higher-voltage rated capacitors. Refer to the Output Voltage Selection section in the MAX58 data sheet for instructions on selecting the feedback resistors. Positive Linear-Regulator Output Voltage (VPOS) The MAX58 EV kit s positive linear-regulator output is set to +5V by feedback resistors R and R4. To generate output voltages other than +5V (+.5V to +8V), select different external voltage-divider resistors (R and R4). Refer to the Output Voltage Selection section in the MAX58 data sheet for instructions on selecting the resistors. Negative Linear-Regulator Output Voltage (VNEG) The MAX58 EV kit s negative linear-regulator output is set to -8V by feedback resistors R7 and R8. To generate output voltages other than -8V (0 to -V), select different external voltage-divider resistors (R7 and R8). Refer to the Output Voltage Selection section in the MAX58 data sheet for instructions on selecting the resistors. Evaluates: MAX58
Evaluates: MAX58 MAX58 Evaluation Kit 4 4.75V C 00µF 6V C 0µF 6.V C 0µF 6.V C4 4.7µF 6V C5 4.7µF 6V C7 C0 0.47µF 5V C 0.µF C 0.µF 50V SRC R 9kΩ % R4 0.kΩ % C9 C0 C8 C6 4.7µF 6V C V/650mA R 95.kΩ % R 0.kΩ % R5 6.8kΩ D VPOS 5V/0mA Q VP JU D C 0pF R 0Ω 4 6 4 8 7 9 0 4 Q D4 D5 JU JU 4 VN VN VNEG -8V/5mA IN FB AGND DRVP 5 FBP SRC COM DRN 9 NEG5 0 OUT5 8 POSS 6 NEG4 7 OUT4 5 POS4 OUT POS 9 NEG 8 OUT 0 POS 6 NEG 5 OUT 7 POS D COMP DRVN FBN REF DEL CTL SUP BGND C4 C R6 6.8kΩ C7 C8 0.47µF 6V R7 kω % R8 40.kΩ % C5 0.µF 0V C 0.0µF C4 R0 C0 C 0pF C6 0.0µF C9 R9 80kΩ L.µH CTL R6 JU4 C 0.µF 50V C5 C6 R R R TP4 DRN OUT5 OUT4 COM R TP OUT OUT R4 TP R R4 C7 R5 R6 OUT R5 TP C8 R7 R8 C9 R9 R0 MAX58 U C Figure. MAX58 EV Kit Schematic
MAX58 Evaluation Kit Figure. MAX58 EV Kit Component Placement Guide Component Side Figure. MAX58 EV Kit PC Board Layout Component Side Evaluates: MAX58 Figure 4. MAX58 EV Kit PC Board Layout Internal Layer GND Plane Figure 5. MAX58 EV Kit PC Board Layout Internal Layer Signal/GND Plane 5
MAX58 Evaluation Kit Evaluates: MAX58 Figure 6. MAX58 EV Kit PC Board Layout Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 Maxim Integrated Products, 0 San Gabriel Drive, Sunnyvale, CA 94086 408-77-7600 004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.