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LTM4656 数据表(PDF) 8 Page - Analog Devices |
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LTM4656 数据表(HTML) 8 Page - Analog Devices |
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8 / 28 page  LTM4656/LTM4656-1 8 Rev. 0 For more information www.analog.com BLOCK DIAGRAM VIN SENSE1 UV SHDN TMR FLT VIN MIN 13V 50mV/25mV 1.275V 2µA ITMR 0.01µF 47Ω 100k R RSENSE 0.004Ω 20k 100k IA CHARGE PUMP SLEW CNTL CONTROL LOGIC IN-LINE PROTECTION BLOCK SHDN UV 0.5V 1.375V VCC 1.275V FLT GATEOFF FLT 4.3V GATECNTL RETRY RETRY GND (SENSE1 – BVIN)/RSENSE = INPUT I +– 4656 BD VFB SW RUN BVIN SS PGOOD COMP VBIAS INTVCC FREQ MODE_PLLIN VOUT VFB TEMP+ TEMP– GND BVIN MOUT MBOOST 5.1V ZENER 75k 0.1µF 4.7µH 0.1µF 4.7µF 221k 22pF 0.1µF 470pF 22µF 100µF* 150µF 35V 10µF 35V ×3 0.1µF 10k 60.4k 11.5k POWER CONTROL UVLO EXAMPLE: ~9V TURN ON > THAN 1.275V = ON RUN MOUT DRIVE MBOOST DRIVE COMP NETW* SS PGOOD VBIAS GND CURRENT SENSE INTVCC FREQ VFB 16V ×2 16V 50V 50V MODE_PLLIN ENABLE VCC COMP PGOOD *BVIN NEEDS ≥100 F INPUT CAPACITOR TO SERVICE CURRENT DURING SHORT FOR PROPER CURRENT LIMIT TIMEOUT. VFB VOUT VIN NTSA545 *LTM4656-1 Optional External Compensation |
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