MAX761CSA Maxim Integrated Products, MAX761CSA Datasheet
MAX761CSA
Specifications of MAX761CSA
Available stocks
Related parts for MAX761CSA
MAX761CSA Summary of contents
Page 1
... Max Shutdown Supply Current 2V to 16.5V Input Voltage Range 12V (MAX761), 15V (MAX762) or Adjustable Output Current-Limited PFM Control Scheme 300kHz Switching Frequency Internal, 1A, N-Channel Power FET LBI/LBO Low-Battery Comparator ______________Ordering Information PART MAX761CPA MAX761CSA MAX761C/D MAX761EPA MAX761ESA MAX761MJA MAX762CPA MAX762CSA MAX762C/D MAX762EPA MAX762ESA MAX762MJA * Contact factory for dice specifications ...
Page 2
Adjustable, High-Efficiency, Low I , Step-Up DC-DC Converters Q ABSOLUTE MAXIMUM RATINGS Supply Voltage V+ to GND .......................................-0.3V to 17V REF, LBO, LBI, SHDN, FB ............................-0.3V to (V+ + 0.3V) LX..............................................................................-0.3V to 17V LX Peak Current ....................................................................1.5A LBO ...
Page 3
Adjustable, High-Efficiency, Low I ELECTRICAL CHARACTERISTICS (continued) ( 0mA 0.1µ LOAD REF A PARAMETER SYMBOL Reference Load Regulation Reference Line Regulation LX Leakage Current FB Leakage Current I FB ...
Page 4
Adjustable, High-Efficiency, Low I , Step-Up DC-DC Converters Q __________________________________________Typical Operating Characteristics (Circuit of Figure +25°C, unless otherwise noted.) A EFFICIENCY vs. OUTPUT CURRENT BOOTSTRAPPED 100 V = 10V ...
Page 5
Adjustable, High-Efficiency, Low I ____________________________Typical Operating Characteristics (continued) (Circuit of Figure +25°C, unless otherwise noted LEAKAGE vs. TEMPERATURE 1000 V+ = 15V 100 16. ...
Page 6
Adjustable, High-Efficiency, Low I , Step-Up DC-DC Converters Q _____________________________Typical Operating Characteristics (continued) (Circuit of Figure +25°C, unless otherwise noted.) A LOAD–TRANSIENT RESPONSE 5µs/div (0mA to 200mA) LOAD ...
Page 7
Adjustable, High-Efficiency, Low I LBO LBI LBI REF Q ONE-SHOT TRIG ONE-SHOT CURRENT CONTROL CIRCUITRY Figure 1. Simple Block Diagram ________________Detailed Description Operating Principle The MAX761/MAX762 BiCMOS step-up switch-mode power supplies provide fixed outputs of ...
Page 8
Adjustable, High-Efficiency, Low I , Step-Up DC-DC Converters 18µH 1N5817 +5V C1 33µ REF C3 MAX761 0.1µ SHDN LBI LBO ...
Page 9
Adjustable, High-Efficiency, Low I Figure 4a. CCM, Heavy Load Current Waveform (500mA/div) used in a bootstrapped circuit (Figure 5), undervoltage lockout prevents start-up at low input voltages; but once started, operation can continue down to a lower voltage ...
Page 10
Adjustable, High-Efficiency, Low I , Step-Up DC-DC Converters 1N5817 18µ MAX761 REF MAX762 C3 2 LBI SHDN GND C1 = 33µ ...
Page 11
Adjustable, High-Efficiency, Low I Reference Capacitor Bypass REF with a 0.1µF capacitor. REF can source up to 100µA. Setting the Low-Battery Detector Voltage To set the low-battery detector’s falling trip voltage (V ), select R3 between 10kΩ and ...
Page 12
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1993 Maxim Integrated Products LX 0.142" ...