LM34914EVAL National Semiconductor, LM34914EVAL Datasheet
LM34914EVAL
Specifications of LM34914EVAL
Related parts for LM34914EVAL
LM34914EVAL Summary of contents
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... LM34914 Evaluation Board Introduction The LM34914EVAL evaluation board provides the design en- gineer with a fully functional buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 5V output over an input range 40V. The circuit delivers load currents to 1A, with current limit set ≊ ...
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Board Connection/Start-up The input connections are made to the J1 connector. The load is connected to the J2 (OUT) and J3 (GND) terminals. Ensure the wires are adequately sized for the intended load current. Before start-up a voltmeter should be ...
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FIGURE 3. Intermediate Ripple Configuration Using C12 and chosen to generate 25-30 mVp the minimum ripple current is 85 mAp-p at minimum V couples that ripple to the FB pin without the attenuation of the ...
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... TDK C2012X7R2A104M TDK C2012X7R2A332M TDK C2012X7R2A103M Unpopulated Unpopulated Zetex ZLLS2000 TDK SLF12575T-101M1R9, or Cooper Bussmann DR125-101 CRCW08054991F CRCW08054991F Unpopulated CRCW08051503F CRCW08059092F National Semiconductor LM34914SD 4 30000309 Package Value 1210 4.7 µF, 50V 1206 0805 0.1 µF, 16V 0805 0.022 µF, 16V 0805 0.1 µF, 100V 0805 0.022 µ ...
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Circuit Performance 30000310 FIGURE 6. Efficiency vs Load Current 30000311 FIGURE 7. Efficiency vs Input Voltage 5 www.national.com ...
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FIGURE 8. Output Voltage Ripple FIGURE 9. Switching Frequency vs. Load Current FIGURE 10. Current Limit vs Input Voltage 6 30000312 30000313 30000314 ...
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PC Board Layout Board Silkscreen Board Top Layer Board Bottom Layer (Viewed from Top) 7 30000326 30000327 30000328 www.national.com ...
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