MAX758AEWE Maxim Integrated Products, MAX758AEWE Datasheet
MAX758AEWE
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... MAX750A Pin Configurations continued on last page. ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. Adjustable, Step-Down, Current-Mode PWM Regulators ____________________________Features Up to 750mA Load Currents The 160kHz High-Frequency, Current-Mode PWM 85% to 96% Efficiencies 33µH or 100µH Pre-Selected Inductor Value, No Component Design Required 1 ...
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Adjustable, Step-Down, Current-Mode PWM Regulators ABSOLUTE MAXIMUM RATINGS Pin Voltages V+ (MAX750A).........................................................+12V, -0.3V V+ (MAX758A).........................................................+18V, -0.3V LX (MAX750A) ....................................(V+ - 12V) to (V+ + 0.3V) LX (MAX758A) ....................................(V+ - 21V) to (V+ + 0.3V) SS, CC, SHDN.............................................-0.3V to (V+ + ...
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ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure for the MAX750A 12V for the MAX758A unless otherwise noted.) A MIN MAX PARAMETER CONDITIONS V+ rising Undervoltage Lockout V+ falling ...
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Adjustable, Step-Down, Current-Mode PWM Regulators _____________________________Typical Operating Characteristics (continued) (Circuit of Figure 5V +25°C, unless otherwise noted.) OUT A MAX758A PEAK INDUCTOR CURRENT vs. OUTPUT CURRENT 1000 L1 = 100µ 300µF 800 600 ...
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Operating Characteristics (continued) (Circuit of Figure 5V +25°C, unless otherwise noted.) OUT A MAXIMUM OUTPUT CURRENT vs. SUPPLY VOLTAGE 1400 (NOTES 3, 6) 1200 1000 MAX750A 800 SUPPLY VOLTAGE ...
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Adjustable, Step-Down, Current-Mode PWM Regulators _____________________________Typical Operating Characteristics (continued) (Circuit of Figure 5V +25°C, unless otherwise noted.) OUT A MAX750A LINE-TRANSIENT RESPONSE 100ms/div A: V OUT , 50mV/div, AC-COUPLED B: V+, 5V/div, 6.0V TO 11.0V ...
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Description PIN 8-PIN 16-PIN NAME DIP/SO WIDE SO Shutdown—active low. Ground to power-down chip, tie to V+ for normal operation. SHDN 1 2 Output voltage falls to 0V when SHDN is low. Reference Voltage Output (+1.22V) supplies up to ...
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Adjustable, Step-Down, Current-Mode PWM Regulators SHDN BIAS GEN MAX750A MAX758A C5 330pF R2 ERROR AMP 1.23V 510K BANDGAP REF C6 1M 0.01µF ±35 0.1µF * SEE TABLE 3 FOR COMPONENT VALUES AND SUPPLIERS. Figure 1. ...
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FROM SHDN MAX750A MAX758A R1 510k SS CLAMP SS 1M ±35% C1 1.23V Figure 2. Block Diagram of Soft-Start Circuitry tors’ leakage currents rises sharply. The actual design limit for standby current is much less than the 100µA specified in ...
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Adjustable, Step-Down, Current-Mode PWM Regulators Table 1. Typical Soft-Start Times MAX750A CIRCUIT CONDITIONS R1 (kΩ) V+ (V) I (mA) OUT 510 6 0 510 9 0 510 11 0 510 9 150 510 9 300 510 9 150 510 9 ...
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MAX750A: 4.0V TO 11.0V MAX758A: 4.0V TO 16. SHDN LX MAX750A R1 MAX758A I.C. 510k GND REF 0.1µF 0.01µF PART MAX750A MAX758A NOTE: PIN NUMBERS REFER TO 8-PIN PACKAGES. * ...
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Adjustable, Step-Down, Current-Mode PWM Regulators Table 2. Component Values and Suppliers MAX750AC/MAX758AC ASSEMBLY COMMERCIAL TEMPERATURE RANGE METHOD INDUCTORS L1 = 33µH to 100µH Sumida (708) 956-0666 CD54-101KC (MAX750AC) Surface CD105-101KC Mount (MAX758AC) Coiltronics (305) 781-8900 CTX100 series L1 = 33µH ...
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Figure 4. DIP PC Layout, Through-Hole Component Placement Diagram (1x Scale) Figure 6. DIP PC Layout, Solder Side (1x Scale) ______________________________________________________________________________________ Adjustable, Step-Down, Current-Mode PWM Regulators Figure 5. DIP PC Layout, Component Side (1x Scale) Figure 7. DIP PC Layout, ...
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... GND CC 0.072" (1.828mm) TRANSISTOR COUNT: 274 (MAX750A) SUBSTRATE CONNECTED TO V+. 14 ______________________________________________________________________________________ __Ordering Information (continued) PART MAX758ACPA MAX758ACWE MAX758AC/D V+ MAX758AEPA V+ MAX758AEWE LX MAX758AMJA LX * Contact factory for dice specifications. LX **Contact factory for availability and processing to MIL-STD-883. GND GND I.C. SHDN REF 0.116" 0.116" (2.946mm) 286 (MAX758A) ...
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Information 0.127mm 0.004in ______________________________________________________________________________________ Adjustable, Step-Down, Current-Mode PWM Regulators 45˚ INCHES ...
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... 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. 16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1993 Maxim Integrated Products h x 45˚ ...