AS1337A-TD_EK_ST
AS1337A-TD_EK_ST Datasheet
AS1337
| Part | Datasheet |
|---|---|
AS1337A-TD_EK_ST |
AS1337A-TD_EK_ST (pdf) |
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| Application Note AN01- Demoboard AS1337 200mA, DC-DC Step-Up Converter with Buck Mode AN01- Demoboard Table of Contents AS1337 Demoboard jumper and device locations 4 AS1337 Demoboard 1V0 schematic 4 AS1337 Demoboard 1V0 layout 5 6 COPYRIGHT 6 7 DISCLAIMER 6 AS3610 AN01- Demoboard 1 Further Applications Visit our home-page: AS1337- AN01 - Demoboard AS1337 Demoboard Layout AS1337 Demoboard Schematic 3 General Description Figure 1 Board Description - Connectors Figure 2 Board Description Measurement Points Connector Description Label A B Name VIN GND VOUT POK Description Supply Voltage Ground Enable Input Output Voltage POK Measurement Point Description Label F G H I J K L Name VIN GND LX VOUT EN FB POK Supply Voltage Ground External Inductor Output Voltage Enable Input Feedback POK Enable Info Supply voltage ranging from 0.65V to 4.5V Set the digital input “high” for normal operation. For shutdown, set “low” Output voltage ranging from 2.5V to 5.0V high, when VOUT is within regulation Info Measurement Points ON The AS1337 is enabled OFF The AS1337 is disabled No Jumper Connect a valid enable signal via external connector “C”. AN01- Demoboard 4 Getting Started The AS1337 Demoboard is designed to work with the AS1337A “Battery connected in shutdown” version. With the resistor divider R1/R2 it is possible to adjust the VOUT. On this Demoboard the following resistor values are mounted R1 = 560k and R2 = 330k VOUT = 3.3V 5 HW- Overview AS1337 Demoboard jumper and device locations Listed below are the various connectors and jumpers. Ref. Function C1s Input Capacitor C2s Output Capacitor L1 Coil R1 Resistor VOUT R2 Resistor VOUT R3 RPOK U1 DC/DC Converter Value 10µF 22µF 4.7µH 560k 330k 100k ASSE Description 0805 / X5R / 6.3V 0805 / X5R / 6.3V / 1.82A / 6.8x6.0x2.4mm 0805/ ±1% 0805/ ±1% 0805/ ±1% TQFN 3x3mm 8-pin |
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