MAX750A-MAX758A MAXIM [Maxim Integrated Products], MAX750A-MAX758A Datasheet
MAX750A-MAX758A
Related parts for MAX750A-MAX758A
MAX750A-MAX758A Summary of contents
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... The MAX750A/MAX758A are adjustable-output, CMOS, step-down, DC-DC switching regulators. MAX758A accepts inputs from 4V to 16V and delivers 750mA, while the MAX750A accepts inputs from 4V to 11V and delivers 450mA. Typical efficiencies are 85% to 90%. Typical quiescent current is 1.7mA, or only 6µA in shutdown mode. The output does not exhibit any ripple at subharmonics of the switching frequency over its specified range ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (Circuit of Figure for the MAX750A 12V for the MAX758A unless otherwise noted ...
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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 LX On Resistance I = 500mA LX LX Leakage Current Reference Voltage T = +25°C A Reference Drift Oscillator Frequency Compensation Pin Impedance Note 1: Output voltage tolerance over temperature is ± ...
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... V+ = 10.2V 200 6.6V 100 100 150 200 250 300 OUTPUT CURRENT (mA) NO-LOAD SUPPLY CURRENT vs. TEMPERATURE 2.0 (NOTES 4, 5) 2.5 MAX750A 9.0V 2.0 MAX758A 12.0V 1.5 1.0 0.5 0 -60 -40 - 100 120 140 TEMPERATURE (°C) OSCILLATOR FREQUENCY vs. TEMPERATURE 200 190 180 170 ...
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... SWITCHING WAVEFORMS DISCONTINUOUS CONDUCTION 12V A 0V 200mA B 0mA SWITCH VOLTAGE (LX PIN), 5V/div +12V B: INDUCTOR CURRENT, 100mA/div C: OUTPUT VOLTAGE RIPPLE, 50mV/div C OUT = 390 12V, I OUT = 20mA MAX758A MAX750A SUPPLY VOLTAGE (V) MAX758A 12V A 0V 100mA B 0mA s/div ...
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... A MAX750A LINE-TRANSIENT RESPONSE 100ms/div A: V OUT , 50mV/div, AC-COUPLED B: V+, 5V/div, 6.0V TO 11.0V I OUT = 300mA MAX750A LOAD-TRANSIENT RESPONSE 50ms/div A: V OUT , 50mV/div, AC-COUPLED B: I OUT , 200mA/div, 20mA TO 300mA Note 3: Commercial temperature range external component values in Table 2. Note 4: Wide temperature range external component values in Table 2. ...
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... Input voltages range from 4V to 11V for the MAX750A, and from 4V to 16V for the MAX758A. The current-mode PWM architecture provides cycle-by- cycle current limiting, improved load transient response characteristics, and simpler outer-loop design ...
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... The control logic holds the output power FET off until the supply voltage rises above approximately 3.75V, at which time a soft-start cycle begins. The MAX750A/MAX758A are shut down by keeping SHDN at ground. In shutdown mode, the output power FET is held off and the output drops to 0V. The internal reference also turns off, which causes the soft-start capacitor to discharge. The 6µ ...
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... Operating Characteristics indicate stability of the oscil- lator frequency over temperature and supply voltage. __________Applications Information Figure 3 shows the MAX750A/MAX758A configured for a standard 5V step-down application. Table 2 lists the com- ponents for the desired operating temperature range. These circuits are useful in systems that require high cur- rent at high efficiency and are powered by an unregulated supply, such as a battery or wall-plug AC-DC transformer ...
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... None 6 0 None 9 0 None 11 0 None 9 150 None 9 150 None 9 150 MAX750A CIRCUIT CONDITIONS R1 (kΩ) V+ (V) I (mA) OUT 510 7 0 510 12 0 510 16 0 510 12 300 510 12 750 None 7 0 None 12 0 None ...
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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. * SEE TABLE 2 FOR EXTERNAL COMPONENT SUPPLIERS. Figure 3. Standard Step-Down Circuit and GND pins as possible. Also, place the output capacitor as close to the inductor and the GND pin as possible ...
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... MAX750AE/M, MAX758AE/M WIDE TEMPERATURE RANGE CAPACITORS INDUCTORS L1 = 33µ 68µF, 16V C4 = 100µF, 6.3V Sumida (708) 956-0666 CD54-33ON (MAX750AC) Matsuo (714) 969-2491 CD105-33ON 267 series (MAX758AE/M) Sprague (603) 224-1961 Coiltronics (305) 781-8900 595D/293D series CTX50 series C3 = 150µF, 16V C4 = 150µF, 16V 33µ ...
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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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... Wide SO ___________________________________________________________Chip Topographies MAX750A SHDN V+ REF LX (2.946mm) SS 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. ...
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Information 0.127mm 0.004in ______________________________________________________________________________________ Adjustable, Step-Down, Current-Mode PWM Regulators 45˚ INCHES ...
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Adjustable, Step-Down, Current-Mode PWM Regulators ___________________________________________Package Information (continued 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 ...