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MAX8734A датащи(PDF) 2 Page - Maxim Integrated Products |
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MAX8734A датащи(HTML) 2 Page - Maxim Integrated Products |
2 / 33 page High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = VCC, V SHDN = 5V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. V+, SHDN to GND ..................................................-0.3V to +25V BST_ to GND ..........................................................-0.3V to +30V LX_ to BST_ ..............................................................-6V to +0.3V CS_ to GND (MAX8732A/MAX8733A only) .................-2V to +6V VCC, LDO5, LDO3, OUT3, OUT5, ON3, ON5, REF, FB3, FB5, SKIP, PRO, PGOOD to GND ...............-0.3V to +6V DH3 to LX3 ..............................................-0.3V to (VBST3 + 0.3V) DH5 to LX5 ..............................................-0.3V to (VBST5 + 0.3V) ILIM3, ILIM5 to GND...................................-0.3V to (VCC + 0.3V) DL3, DL5 to GND....................................-0.3V to (VLDO5 + 0.3V) TON to GND (MAX8734A only) ................................-0.3V to +6V LDO3, LDO5, REF Short Circuit to GND ....................Momentary LDO3 Current (internal regulator) Continuous................+100mA LDO3 Current (switched over to OUT3) Continuous ......+200mA LDO5 Current (internal regulator) Continuous................+100mA LDO5 Current (switched over to OUT5) Continuous ......+200mA Continuous Power Dissipation (TA = +70°C) 28-Pin QSOP (derate 10.8mW/°C above +70°C).........860mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C PARAMETER CONDITIONS MIN TYP MAX UNITS MAIN SMPS CONTROLLERS LDO5 in regulation 6 24 V+ Input Voltage Range V+ = LDO5, VOUT5 < 4.43V 4.5 5.5 V 3.3V Output Voltage in Fixed Mode V+ = 6V to 24V, FB3 = GND, V SKIP = 5V 3.285 3.330 3.375 V V+ = 6V to 24V, FB5 = GND, V SKIP = 5V, MAX8732A/MAX8734A (TON = VCC) 5V Output Voltage in Fixed Mode V+ = 7V to 24V, FB5 = GND, V SKIP = 5V, MAX8733A/MAX8734A (TON = GND) 4.975 5.050 5.125 V Output Voltage in Adjustable Mode V+ = 6V to 24V, either SMPS 1.975 2.00 2.025 V Output Voltage Adjust Range Either SMPS 2.0 5.5 V FB3, FB5 Adjustable-Mode Threshold Voltage Dual-Mode comparator 0.1 0.2 V Either SMPS, V SKIP = 5V, 0 to 5A -0.1 Either SMPS, SKIP = GND, 0 to 5A -1.5 DC Load Regulation Either SMPS, V SKIP = 2V, 0 to 5A -1.7 % Line Regulation Either SMPS, 6V < V+ < 24V 0.005 %/V Current-Limit Threshold (Positive, Default) ILIM_ = VCC, GND - CS_ (MAX8732A/MAX8733A), GND - LX_ (MAX8734A) 93 100 107 mV VILIM_ = 0.5V 40 50 60 VILIM_ = 1V 93 100 107 Current-Limit Threshold (Positive, Adjustable) GND - CS_ (MAX8732A/MAX8733A), GND - LX_ (MAX8734A) VILIM_ = 2V 185 200 215 mV Zero-Current Threshold SKIP = GND, ILIM_ = VCC, GND - CS_ (MAX8732A/MAX8733A), GND - LX_ (MAX8734A) 3mV Current-Limit Threshold (Negative, Default) SKIP = ILIM_ = VCC, GND - CS_ (MAX8732A/MAX8733A), GND - LX_ (MAX8734A) -120 mV Soft-Start Ramp Time Zero to full limit 1.7 ms |
Аналогичный номер детали - MAX8734A |
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Аналогичное описание - MAX8734A |
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