MAX1533AETJ+ Maxim Integrated Products, MAX1533AETJ+ Datasheet
MAX1533AETJ+
Specifications of MAX1533AETJ+
Related parts for MAX1533AETJ+
MAX1533AETJ+ Summary of contents
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... Ordering Information PART TEMP RANGE PIN-PACKAGE MAX1533AETJ -40°C to +85°C 32 Thin QFN 5mm x 5mm MAX1533AETJ+ -40°C to +85°C 32 Thin QFN 5mm x 5mm MAX1537AETX -40°C to +85°C 36 Thin QFN 6mm x 6mm MAX1537AETX+ -40°C to +85°C 36 Thin QFN 6mm x 6mm + Denotes lead-free package. ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers ABSOLUTE MAXIMUM RATINGS IN, SHDN, INA, LDOA to GND ...............................-0.3V to +30V GND to PGND .......................................................-0.3V to +0.3V LDO5, LDO3 GND .......................................-0.3V to +6V CC ILIM3, ILIM5, PGDLY to ...
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... Soft-Start Ramp Time INTERNAL FIXED LINEAR REGULATORS LDO5 Output Voltage LDO5 Undervoltage-Lockout Fault Threshold LDO5 Bootstrap Switch Threshold LDO5 Bootstrap Switch Resistance Idle Mode is a trademark of Maxim Integrated Products, Inc. _______________________________________________________________________________________ = 5V, FSEL = REF, SKIP = GND CONDITIONS Either SMPS, duty cycle = 10% to 90% FSEL = GND f ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 12V, both SMPS enabled load 0°C to +85°C, unless otherwise noted. ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 12V, both SMPS enabled load 0°C to +85°C, unless otherwise noted. ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 12V, both SMPS enabled load 0°C to +85°C, unless otherwise noted. ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 12V, both SMPS enabled load -40°C to +85°C, unless otherwise noted.) ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 12V, both SMPS enabled load -40°C to +85°C, unless otherwise noted.) ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers (MAX1537A circuit of Figure 12V, LDO5 = V IN PWM5 EFFICIENCY vs. LOAD CURRENT (V = 5.0V) OUT5 100 ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers (MAX1537A circuit of Figure 12V, LDO5 = V IN IDLE-MODE CURRENT vs. INPUT VOLTAGE 3.5 DUTY CYCLE 3.0 LIMITED 2.5 2.0 1.5 1.0 0.5 5V OUTPUT 0 0 ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers (MAX1537A circuit of Figure 12V, LDO5 = V IN DELAYED STARTUP WAVEFORM (LIGHT LOAD) MAX1533/37 toc16 3. 3. 2ms/div A. ON5, 5V/div B. ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers (MAX1537A circuit of Figure 12V, LDO5 = V IN 3.3V OUTPUT LOAD TRANSIENT (PULSE SKIPPING) MAX1533/37 toc22 12V 0 40μs/div ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers PIN NAME MAX1533A MAX1537A — 1 ADJA 1 2 ON5 2 3 ON3 — 4 ONA 3 5 FSEL 4 6 ILIM3 5 7 ILIM5 6 8 REF 7 9 GND ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers PIN NAME MAX1533A MAX1537A 10 12 PGOOD UVP DH3 13 15 BST3 14 16 LX3 OVP CSH3 17 19 CSL3 18 20 FB3 ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers PIN NAME MAX1533A MAX1537A 25 27 CSL5 26 28 CSH5 LX5 29 31 BST5 30 32 DH5 SKIP 31 33 SHDN 32 34 — 35 INA ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers Table 1. Component Selection for Standard Applications COMPONENT Input Voltage (2) 10µF, 25V C , Input Capacitor IN_ Taiyo Yuden TMK432BJ106KM 150µF, 6.3V, 40mΩ, low-ESR capacitor C , Output Capacitor OUT5 ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers 5V LDO OUTPUT C1 10μ 5.8μ CS1 10mΩ 3.3V PWM OUTPUT C OUT1 220μF 40mΩ C REF 0.22μ 100kΩ 60.4kΩ R5 60.4kΩ ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers SMPS to LDO Bootstrap Switchover When the 5V main output voltage is above the LDO5 bootstrap-switchover threshold, an internal 0.75Ω (typ) p-channel MOSFET shorts CSL5 to LDO5 while simulta- neously shutting ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers LDO3 SHDN OSC FSEL SKIP ILIM3 CSH3 CSL3 BST3 DH3 LX3 LDO5 DL3 PGND FB3 (FIGURE 5) ON3 OVP UVP PGDLY PGOOD Figure 2. MAX1533A/MAX1537A Functional Diagram ______________________________________________________________________________________ 5V LINEAR 3.3V ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers Table 3. Operating Modes INPUTS* MODE SHDN Shutdown Mode LOW Standby Mode HIGH Normal Operation HIGH 3.3V SMPS Active HIGH 5V SMPS Active HIGH Normal Operation (Delayed 5V SMPS HIGH Startup) ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers CSH CSL 0 LIMIT SKIP SOFT-START COUNTER ON OSC -1 MAX1537A ONLY 0.8V ONE-SHOT SECONDARY FEEDBACK Figure 3: PWM-Controller Functional Diagram ______________________________________________________________________________________ GND CURRENT DAC LIMIT ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers Frequency Selection (FSEL) The FSEL input selects the PWM-mode switching fre- quency. Table 4 shows the switching frequency based on FSEL connection. High-frequency (500kHz) operation optimizes the application for the smallest ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers I L IDLE ≥ t ON(SKIP OUT 0 TIME ON-TIME Figure 4. Pulse-Skipping/Discontinuous Crossover Point DC output accuracy specifications in the Electrical Characteristics table refer to the ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers When adjusting both output voltages, set the 3.3V SMPS lower than the 5V SMPS. LDO5 connects to the 5V output (CSL5) through an internal switch only when CSL5 is above the ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers C BYP LDO5 MAX1533A MAX1537A D BST (R )* BST BST C BST DH LX LDO5 GND (R )* OPTIONAL—THE RESISTOR LOWERS EMI BY DECREASING BST THE ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers high. This turns on the synchronous-rectifier MOSFETs with 100% duty, rapidly discharging the output capaci- tors and clamping both outputs to ground. However, immediately latching DL_ high typically causes slightly negative ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers Thermal Fault Protection The MAX1533A/MAX1537A feature a thermal fault-pro- tection circuit. When the junction temperature rises above +160°C, a thermal sensor activates the fault latch, pulls PGOOD low, and shuts down ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers • Maximum Load Current. There are two values to consider. The peak load current (I mines the instantaneous component stresses and fil- tering requirements and thus drives output-capacitor selection, inductor saturation ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers The transformer turns ratio (N) is determined by SEC FWD = OUT 5 RECT where V is the minimum required rectified sec- ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers 9a. This configuration constantly monitors the inductor current, allowing accurate current-limit protection. Alternatively, high-power applications that do not require highly accurate current-limit protection may reduce the overall power dissipation by connecting ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers energy while transitioning from full-load to no-load con- ditions without tripping the overvoltage fault protection. When using high-capacitance, low-ESR capacitors (see the Output-Capacitor Stability Considerations section), the filter capacitor’s ESR dominates ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers The 40/60 optimal interleaved architecture of the MAX1533A/MAX1537A allows the input voltage low as 8.3V before the duty cycles begin to overlap. This offers improved efficiency over a ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers where C is the reverse transfer capacitance of N RSS and I is the peak gate-drive source/sink current GATE (1A typ). Switching losses in the high-side MOSFET can become a heat ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers above the feedback-threshold voltage, the controller does not trigger an on-time pulse, effectively skipping a cycle. This allows the controller to maintain regulation above the maximum input voltage, but forces the ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers CONNECT THE EXPOSED PAD TO ANALOG GND VIA TO REF BYPASS CAPACITOR MAX1533A TOP LAYER SINGLE INDUCTOR n-CHANNEL MOSFETS INPUT HIGH-POWER LAYOUT Figure 11. PC Board Layout ______________________________________________________________________________________ CONNECT GND AND ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers Pin Configurations (continued) TOP VIEW ADJA 1 ON5 2 ON3 3 ONA 4 FSEL 5 MAX1537A ILIM3 6 ILIM5 7 REF 8 GND 9 THIN QFN 6mm x 6mm 36 ______________________________________________________________________________________ ...
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information 37 ...
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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. 38 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products ...