NEW DATABASE - 350 MILLION DATASHEETS FROM 8500 MANUFACTURERS
NEW DATABASE - 350 MILLION DATASHEETS FROM 8500 MANUFACTURERS
MAX1703 MBR0520L CDH74-4R7 DO3316-4R7 CDRH104 4746-JPS-007 MAX1703EVKIT - Datasheet Archive
_ _ MAX1703(EV)1.2V 5.0V DC13 95%1A x 5.0V x 1A x 1.2V5.5V x 95% EV x 0.1µA x 300kHz
19-1336; Rev 2; 11/98 _ _ MAX1703 MAX1703(EV)1.2V 5.0V DC13 95%1A x 5.0V x 1A x 1.2V5.5V x 95% EV x 0.1µA x 300kHz PWM x x _ DESIGNATION QTY _ DESCRIPTION C1, C2, C3 3 0.22µF, 25V ceramic capacitors C4 1 2 1 Not installed, optional user capacitor D1 1 0.5A, 20V Schottky diode Motorola MBR0520L MBR0520L 1 4.7µH, 3.2A power inductor Sumida CDH74-4R7 CDH74-4R7 Coilcraft DO3316-4R7 DO3316-4R7, Coiltronics UP2B-4R7 or Sumida CDRH104 CDRH104, 4746-JPS-007 4746-JPS-007 MAX1703EVKIT MAX1703EVKIT 0°C to +70°C PIN-PACKAGE 16 Narrow SO 220µF, 10V low-ESR tantalum capacitors AVX TPSE227M010R0100 TPSE227M010R0100 or Sprague 593D227X0010E 593D227X0010E C7 TEMP. RANGE 100µF, 10V low-ESR tantalum capacitor: AVX TPSD107M010R0100 TPSD107M010R0100 or Sprague 593D107X0010D 593D107X0010D C5, C6 PART _ SUPPLIER PHONE FAX J1, J2 2 2 3 0 1 2 2 1 4 1 1 (847) 956-0702 3.40" X 2.40" printed circuit board None (603) 224-1430 (847) 956-0666 Shunts None (603) 224-1961 MAX1703ESE MAX1703ESE None (602) 244-4015 Sprague 1M, 5% resistors U1 (602) 244-5303 100k, 5% resistors R10, R11 (561) 241-9339 Motorola 10, 5% resistor R8, R9 (847) 639-1469 (561) 241-7876 Not installed, user-selected resistor R3 (847) 639-6400 Coiltronics 100k 1% resistors R2, R4, R6 Coilcraft 2-pin jumpers R1, R7, R5 (803) 626-3123 3-pin jumpers J3, J4 (803) 946-0690 Sumida L1 AVX MAX1703 MAX1703 data sheet _ Maxim Integrated Products 1 http://www.maxim-ic.com Evaluates: MAX1703 MAX1703 MAX1703 MAX1703 Evaluates: MAX1703 MAX1703 MAX1703 MAX1703 _ _ MAX1703 MAX1703 EV MAX1703 MAX1703 MAX1703 MAX1703 3.2A 1) 5V2 2) 1 . 2 V 5 . 5 V V I N GND 3) VOUT 4) 5V 5) (ESR) AC ESR ESR _ PC4 1 25V ESR LXPOUTIC 5 2PGND (4) 1. JUMPER SHUNT POSITION PIN CONNECTION MAX1703 MAX1703 OPERATION 1&2 2&3 ON connected to VOUT The MAX1703 MAX1703 is disabled. ON is not controlled by the board. ON must be driven by a signal connected to the ON pad. 1&2 CLK/SEL pin connected to GND Low-power mode, the MAX1703 MAX1703 operates in the PFM mode. 2&3 CLK/SEL pin connected to VOUT High-power mode, the MAX1703 MAX1703 operates in the PWM mode. Open J2 The MAX1703 MAX1703 is enabled. Open J1 ON connected to GND CLK/SEL connected to CLK/SEL pad CLK/SEL pin can be driven by an external source to select the power mode or a 200kHz to 400kHz signal to control the switching frequency. FB pin connected to GND VOUT preset to 5V. FB pin connected to the resistor divider Output voltage determined by the R4-R5 resistor divider. Note: A resistor must be installed in R4 to set the output voltage before removing the shunt. VOUT connected to pull-up resistors This jumper is necessary for normal circuit operation. The pull-up resistors are disconnected The J4 shunt should only be removed when testing the MAX1703 MAX1703 shutdown current. Shorted J3 Open Shorted J4 Open 2 _ MAX1703 MAX1703 Evaluates: MAX1703 MAX1703 2. 5.0V JUMPER SHUNT POSITION PIN CONNECTION J1 1&2 ON pin connected to GND. The MAX1703 MAX1703 is enabled. J2 2&3 CLK/SEL pin connected to VOUT. High-power mode; the MAX1703 MAX1703 operates in the PWM mode. J3 Shorted FB pin connected to GND. VOUT is preset to 5V. J4 Shorted VOUT connected to the pull-up resistors. This shunt is necessary for normal circuit operation. MAX1703 MAX1703 OPERATION VIN 1.2V TO 5.3V C4 100mF 10V R2 OPEN 3 TO J4 LXP R1 100k 1% LXN 8 1 VOUT 14 POKIN R9 100k POK POUT POK U1 VOUT POUT MAX1703 MAX1703 D1 MBR0520L MBR0520L 11 OUT R10 1M J4 15 FB C2 0.22mF 10V R4 OPEN J3 2 C7 OPEN 16 TO R9 R3 Y 10W 4 3 2 C6 220mF 10V 13 C3 0.22mF J1 C5 220mF 10V REF C1 0.22mF ON L1 4.7mH ON R5 100k 1% R8 100k 1 AO AO 7 3 CLK/SEL J2 1 GND 9 2 R11 1M CLK/SEL AIN GND PGND PGND 5 10 12 AIN 6 R7 100k 1% R6 OPEN 1. MAX1703 MAX1703 EV _ 3 Evaluates: MAX1703 MAX1703 MAX1703 MAX1703 1.0" 1.0" 2. MAX1703 MAX1703 EV 3. MAX1703 MAX1703 EVPC () 1.0" 4. MAX1703 MAX1703 EVPC () 169 -00513-30-16 1 TEL. (03)3232-6141 FAX. (03)3232-6149 4 _Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1998 Maxim Integrated Products is a registered trademark of Maxim Integrated Products.