MAX742 evaluation kit) built tested surface-mount printed circuit asse
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MAX742 Evaluation
MAX742 evaluation kit) built tested surface-mount printed circuit assembly intended quick prototyping testing purposes. This generates dual regulated ±12V ±15V output from regulated input supply. Power conversion efficiency ranges 90%, depending output loading. Applications include low-noise power supplies precision analog subsystems distributed power.
±12V ±15V Dual Tracking Outputs Output Power: ±12V 625mA ±15V 500mA 13mA Quiescent Supply Current 100kHz 200kHz Fixed-Frequency Operation Surface-Mount Construction
Evaluates: MAX742
_Component List
DESIGNATION C11-C16 DESCRIPTION 220µF, low-ESR tantalum capacitors TPSE227M010R0100 120µF, low-ESR tantalum capacitors Sprague 595D127X0020R2B 0.01µF ceramic capacitors 0.1µF ceramic capacitors 1µF, tantalum capacitors Sprague 595D105X0020T2B Matsuo 267M 1602 22µF, tantalum capacitor Sprague 595D225X0025B2B Matsuo 267E 2502 10µF, tantalum capacitor Sprague 595D106X0010A2B 1N5821 equivalent (SMT) Schottky diodes, Nihon NSQ03A03 Motorola MBRS340T3 Dual Schottky diode (SOT-23) Central Semiconductor CMPSH-3S 47µH inductors, Coiltronics CTX0312384-1 (500mA output) CoilCraft D03316-473 (alternate ±250mA output) 100, resistor 0.082, resistors, Dale WSL-2512R082F LR2512-01-R082-F Dual N-channel MOSFET (both sections parallel), Motorola MMDF3N02HD Siliconix Si9936HD Dual P-channel MOSFET (both sections parallel), Motorola MMDF2P03HD Maxim MAX742CWP 3-pin headers Shunts MAX742 board MAX742 data sheet
_Ordering Information
PART MAX742EVKIT-SO TEMP. RANGE +70°C BOARD TYPE Surface Mount
_Component Suppliers
SUPPLIER CoilCraft Coiltronics Dale Matsuo Motorola Murata-Erie Siliconix Sprague PHONE (207) 282-5111 (708) 639-6400 (407) 241-7876 (402) 563-6582 (704) 264-8861 (714) 969-2491 (602) 244-3576 (404) 436-1300 (408) 988-8000 (603) 224-1961 (207) 283-1941 (708) 639-1469 (407) 241-9339 (402) 563-6418 (704) 264-8866 (714) 960-6492 (602) 244-4015 (404) 684-1591 (408) 970-3950 (603) 224-1430
JU1, None None None
Maxim Integrated Products
Call toll free 1-800-998-8800 free samples literature.
MAX742 Evaluation Evaluates: MAX742
_Quick Start
MAX742 fully assembled tested surface-mount board. Follow these steps verify board operation. turn power supply until connections completed. Connect 4.5V 6.0V supply marked VIN. ground connects pad. Connect voltmeter load any) VOUT pad. Place shunt across pins 200kHz operation across pins ±15V outputs. Turn power verify that output voltage ±15V. ±12V outputs, remove shunt from pins place across pins
_Detailed Description
Jumper Selection
3-pin header selects frequency operation. Table lists jumper-selectable options. 3-pin header selects output voltages. Table lists jumper-selectable options.
Table Jumper Functions
SHUNT LOCATION 100/200 Connected Connected FREQUENCY 100kHz 200kHz
Table Jumper Functions
SHUNT LOCATION 12/15 Connected Connected OUTPUT VOLTAGE ±12V ±15V
4.5V
220µF
47µH
NSQ03A03 MMDF3N02 120µF 120µF 120µF
0.1µF 0.01µF 10µF 2.2µF 0.01µF
AGND 100/200 12/15 VREF CCFB-
CSH+ CSL+
MAX742
EXT+ PUMP PDRV EXTV+ CSHCSL-
CMPSH_3S 220µF 0.1µF
MMDF2P03 47µH NSQ03A03 120µF 120µF 120µF
Figure MAX742 Schematic
MAX742 Evaluation Evaluates: MAX742
Figure MAX742 Component Placement Guide- Component Side
Figure MAX742 Component Placement Guide- Solder Side
Figure MAX742 Board Layout-Component Side
Figure MAX742 Board Layout-Solder Side
1994 Maxim Integrated Products
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 (408) 737-7600
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
Evaluates: MAX742
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MAX742 Evaluation
MAX742
product
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Product Data Sheets Evaluation Manuals Free Literature Request Cards
Call toll free 1-800-998-8800 free samples literature.
Germany (Maxim GmbH)
(0734)
(408) 737-7194
1994 EVALUATION DATA BOOK
1994 Releases Data Book 1994 Battery Management DC-DC Converter Circuit Collection 1994 Applications Product Highlights Book 1993 Releases Data Book, Vol. 1993 Applications Product Highlights Book 1992 Releases Data Book, Vol. 1992 Applications Product Highlights Book
Other Data Books Available from Maxim:
1994 EVALUATION DATA BOOK FAXBACK OFFER
Accelerate your time market with Maxim's evaluation kits kits) that simplify design-in prototyping. your convenience, 1994 Evaluation Data Book includes manuals corresponding data sheets covering products easy-to-use book. receive your free data book, simply this response card your nearest Maxim office, call toll-free 1-800-998-8800 only) prompt fulfillment. look forward serving you.
Printed
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