MAX771ESA+ Maxim Integrated Products, MAX771ESA+ Datasheet
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MAX771ESA+
Specifications of MAX771ESA+
Related parts for MAX771ESA+
MAX771ESA+ Summary of contents
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... EXT MAX771 ON/OFF SHDN CS REF V+ FB AGND GND ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. Low I , Step-Up DC-DC Controllers Q ____________________________Features 90% Efficiency for 10mA to 1A Load Currents Up to 15W Output Power 110µ ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q ABSOLUTE MAXIMUM RATINGS Supply Voltages V+ to GND.............................................................-0.3V to 17V V+ to SGND.............................................................-0. SGND........................................................-0.3V to (V+ + 0.3V) EXT, CS, REF, LBO, LBI, SHDN, FB.............-0.3V to (V+ ...
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Adjustable, High-Efficiency, ELECTRICAL CHARACTERISTICS (continued) ( 0mA LOAD A MIN PARAMETERS SYMBOL REF Load Regulation REF Line Regulation FB Trip-Point Voltage V FB Input Current I SHDN Input High ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted.) A MAX770 EFFICIENCY vs. OUTPUT CURRENT (BOOTSTRAPPED) 100 3. ...
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Adjustable, High-Efficiency, ____________________________Typical Operating Characteristics (continued +25°C, unless otherwise noted.) A REFERENCE OUTPUT RESISTANCE vs. TEMPERATURE 250 200 150 100 50 0 -60 -40 - TEMPERATURE ( C) MAXIMUM SWITCH ON-TIME vs. TEMPERATURE 16.5 ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q ____________________________Typical Operating Characteristics (continued) (Circuit of Figure 2a +25°C, unless otherwise noted.) A MAX770 HEAVY-LOAD SWITCHNG WAVEFORMS V OUT 0 I LIM I LIM ...
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Adjustable, High-Efficiency, ____________________________Typical Operating Characteristics (continued) (Circuit of Figure 2a +25°C, unless otherwise noted.) A ______________________________________________________________Pin Description PIN MAX770 NAME MAX771 MAX773 MAX772 1 — EXT Gate drive for external N-channel power transistor Power-supply input. Also ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q _________________________________________________Pin Description (continued) PIN MAX770 NAME MAX771 MAX773 MAX772 Low-level gate/base drive for external power transistor. Connect to the gate of an external — 12 EXTL N-channel MOSFET or ...
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Adjustable, High-Efficiency, LBO V15 V12 V+ MAX773 ONLY LBI N 1.5V REF REFERENCE COMPARATOR ONE-SHOT Q TRIG F ONE-SHOT TRIG Q Figure 1. Block Diagram Floating the shunt-regulator ground (SGND) disables the shunt regulator. To ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers 0 REF C3 L1 0.1 F MAX770 SHDN EXT MTP3055EL 8 6 AGND ...
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Adjustable, High-Efficiency V12 14 V15 SGND R4 8 63.4k REF MAX773 (1 LBO 0 LBI 13 EXTH EXTL SHDN 10k ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers 24V TO 28V 250 H R SHUNT 0 SGND N EXTH 13 Si9420DY 4 LBO 12 ...
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Adjustable, High-Efficiency, drive outputs (EXTH and EXTL) that operate 180° out of phase (Figures 3a and 3b). In Figure 3b, the resistor in series with EXTH limits the base current, and EXTL (which is connected directly to the ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q Table 1. Bootstrapped vs. Non-Bootstrapped Operation PARAMETER Gate Drive FET On Resistance Gate-Drive Capacitive Losses No-Load Supply Current Possible Input Voltage Range Normally Recommended Input Voltage Range Fixed Output ...
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Adjustable, High-Efficiency, 3 OUT 3 40m SENSE 2 50m SENSE 2.0 R SENSE 1.5 1.0 R SENSE 0.5 R SENSE INPUT VOLTAGE (V) Figure ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q MAX770 MAX771 MAX772 EXT CS Figure 8a. Use an N-Channel MOSFET with the MAX770/MAX771/MAX772 MAX773 EXTH EXTL CS Figure 8b. Using an N-Channel MOSFET with the MAX773 The standard ...
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Adjustable, High-Efficiency, The two most significant losses contributing to the 2 N-FET’s power dissipation are I R losses and switching losses. Select a transistor with low minimize these losses. RSS Determine the maximum required gate-drive ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q Smaller capacitors are acceptable for light loads or in applications that can tolerate higher output ripple. Since the output filter capacitor’s ESR affects efficien- cy, use low-ESR capacitors for ...
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Adjustable, High-Efficiency, Starting Up under Load The Typical Operating Characteristics show the Start- Up Voltage vs. Load Current graph for bootstrapped- mode operation. This graph depends on the type of power switch used. The MAX770–MAX773 are not designed ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controllers Q ___Ordering Information (continued) PART TEMP. RANGE MAX771CPA 0°C to +70°C MAX771CSA 0°C to +70°C MAX771C/D 0°C to +70°C MAX771EPA -40°C to +85°C MAX771ESA -40°C to +85°C MAX771MJA -55°C to ...