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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MP2918GL датащи(PDF) 3 Page - Monolithic Power Systems |
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MP2918GL датащи(HTML) 3 Page - Monolithic Power Systems |
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3 / 30 page  MP2918 —4V TO 40V SYNCHRONOUS STEP-DOWN CONTROLLER MP2918 Rev. 1.02 www.MonolithicPower.com 3 5/31/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. PACKAGE REFERENCE TOP VIEW TOP VIEW SYNCO MP2918 3 SENSE+ IN EN/SYNC COMP VCC2 FREQ BG BST TG SENSE- 4 5 6 7 8 18 17 16 15 14 13 PGND FB SS 2 19 20 1 SW SGND VCC1 CCM/AAM 9 10 ILIM PG 12 11 SYNCO VCC1 VCC2 COMP FB SS SGND BG PGND SW SENSE+ SENSE- MP2918 1 2 3 4 5 6 16 15 14 13 12 11 TSSOP-20 EP QFN-20 (3mmx4mm) ABSOLUTE MAXIMUM RATINGS (1) Input supply voltage (VIN)............................. 65V BST supply voltage (VBST)................. VIN + 6.5V SW ..................................................-0.3V to 65V EN/SYNC ..................................................... 55V BST - SW .................................................... 6.5V Supply voltage (VCC1) ............................... 6.5V External supply voltage (VCC2)................... 15V SENSE +/- ................................................... 28V Differential sense (SENSE+ to SENSE-) ............ .....................................................-0.7V to +0.7V TG ...............................VSW - 0.3V to VBST + 0.3V BG ................................... -0.3V to VCC1 + 0.3V All other pins ................................-0.3V to +6.5V Continuous power dissipation (TA = +25°C) (2) TSSOP-20 EP............................................ 3.1W QFN-20 (3mmx4mm) ................................. 2.6W Junction temperature ................................150 C Lead temperature .....................................260 C Storage temperature ................ -65 C to +175C Recommended Operating Conditions (3) Supply voltage (VIN)… ........................ 4V to 40V Output voltage (VOUT)................................. ≤25V Supply voltage for VCC2 ….............. 4.7V to 12V Operating junction temp. (TJ)….-40°C to +125°C Thermal Resistance (4) θJA θJC TSSOP-20 EP ........................ 40 ....... 8.... C/W QFN-20 (3mmx4mm).............. 48 ...... 10... C/W NOTES: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature TJ (MAX), the junction-to- ambient thermal resistance θ JA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by PD (MAX) = (TJ (MAX)-TA)/θJA. Exceeding the maximum allowable power dissipation produces an excessive die temperature, causing the regulator to go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) Measured on JESD51-7, 4-layer PCB. |
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