MAX798ESE-T Maxim Integrated Products, MAX798ESE-T Datasheet
MAX798ESE-T
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MAX798ESE-T Summary of contents
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... Max Total Load-Regulation Error 0.06%/V Max Line-Regulation Error 5V Linear-Regulator Output Precision 2.505V Reference Output Automatic Bootstrap Circuit 150kHz/300kHz Fixed-Frequency PWM Operation Programmable Soft-Start 1.2mA Typical Quiescent Current (V = 12V 1µA Typical Shutdown Current ______________Ordering Information PART MAX798ESE __________Typical Operating Circuit INPUT 4.5V TO 30V BST PGND ...
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... REF Short Circuit to GND ...........................................Continuous VL Output Current ...............................................................50mA Continuous Power Dissipation (T SO (derate 8.70mW/°C above +70°C) ........................696mW Operating Temperature Range MAX798ESE....................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300° 0°C to +85°C, unless otherwise noted.) ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power ELECTRICAL CHARACTERISTICS (continued) (V+ = +15V, GND = PGND = 0V PARAMETER SYNC = REF Oscillator Frequency SYNC = SYNC High Pulse Width SYNC ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power ELECTRICAL CHARACTERISTICS (V+ = +15V, GND = PGND = 0V REF PARAMETER STEP-DOWN CONTROLLER Input Supply Range Nominal Adjustable Output External resistor divider Voltage Range Feedback Voltage ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power ______________________________________________________________Pin Description PIN NAME 1 SS Soft-Start Timing Capacitor Connection. Ramp time to full current limit is approximately 1ms/nF. Disables pulse-skipping mode when high. Connect to GND for normal use. Don’t ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power V , 4.5V TO 30V 2 SKIP 0.33 F REF ON SHDN OFF MAX798 0. SYNC Q1 SILICONIX Si4410DY or IRF7413 C1, ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power The MAX798 contains the following seven major circuit blocks, which are shown in Figure 2. PWM Controller Blocks: Multi-Input PWM Comparator Current-Sense Circuit PWM Logic Block Gate-Driver Outputs BATTERY VOLTAGE 4.5V ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power These internal IC blocks aren’t powered directly from the battery. Instead, a +5V linear regulator steps down the battery voltage to supply both the IC internal rail (VL pin) as well ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power 1.6V SLOPE COMP 30mV SKIP SHDN –100mV Figure 3. PWM Controller Detailed Block Diagram _______________________________________________________________________________________ MAIN PWM COMPARATOR VL CURRENT LIMIT 24R 2.5V 1R SYNCHRONOUS RECTIFIER CONTROL ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power 5V ±10% V BATT 0.1µ MAX798 DH DL Figure 4. Powering VL from a Separate +5V Supply 10 ______________________________________________________________________________________ DH MAX798 DL CSH CSL FB GND V OUT (V ...
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High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power ___________________Chip Information TRANSISTOR COUNT: 1008 ________________________________________________________Package Information ______________________________________________________________________________________ 0.101mm 0.004in Narrow SO SMALL-OUTLINE H PACKAGE (0.150 in.) INCHES MILLIMETERS DIM MIN MAX MIN ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product 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 © 1996 Maxim Integrated Products ...