MAX17020ETJ+ Maxim Integrated Products, MAX17020ETJ+ Datasheet
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MAX17020ETJ+
Specifications of MAX17020ETJ+
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MAX17020ETJ+ Summary of contents
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... Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. TOP VIEW Applications PGOOD2 OUT2 ILIM2 REFIN2 A "+" SIGN FIRST-PIN INDICATOR DENOTES A LEAD-FREE PACKAGE. Quick-PWM is a trademark of Maxim Integrated Products, Inc. Features Ordering Information TEMP RANGE PIN-PACKAGE -40°C to +85°C 32 TQFN Pin Configuration 24 23 ...
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... OUT1 Output Voltage Accuracy (Note 1) OUT1 Voltage Adjust Range FB1 Dual-Mode™ Threshold Voltage Levels FB1 Input Bias Current Dual Mode is a trademark of Maxim Integrated Products, Inc. 2 _______________________________________________________________________________________ BST1 to LX1..............................................................-0.3V to +6V DH2 to LX2 ..............................................-0. BST2 to LX2..............................................................-0.3V to +6V LDO, RTC, REF Short Circuit to GND.........................Momentary RTC Current Continuous ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V (Note 3) PARAMETER ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V (Note 3) PARAMETER ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V (Note 3) PARAMETER ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V (Note 3) PARAMETER ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator ELECTRICAL CHARACTERISTICS (Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V PARAMETER SYMBOL INPUT SUPPLIES ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V PARAMETER SYMBOL LINEAR ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V PARAMETER SYMBOL OUT2 ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator (Circuit of Figure 12V OUTPUT EFFICIENCY vs. LOAD CURRENT 100 12V 70 65 20V 60 ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator (Circuit of Figure 12V STANDBY AND SHUTDOWN INPUT SUPPLY CURRENT vs. INPUT VOLTAGE 1 STANDBY (ONLDO = 0.1 SHUTDOWN ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator (Circuit of Figure 12V LDO LOAD TRANSIENT MAX17020 toc16 4μs/div A. LDO OUTPUT, B. LOAD CURRENT, 100mV/div ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator (Circuit of Figure 12V 3.3V SMPS LOAD TRANSIENT 6.5A 0.5A 3.3V 0A 40μs/div A. LOAD CURRENT, 5A/div B. 3.3V SMPS OUTPUT, 100mV/div ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator PIN NAME External Reference Input for the Linear Regulator. LDOREFIN sets the LDO regulation voltage ( for a 0. LDOREFIN range. Connect LDOREFIN to GND for a ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator PIN NAME 26 DH2 High-Side Gate-Driver Output for SMPS2. DH2 swings from LX2 to BST2. 27 ON2 Enable Input for SMPS2. Drive ON2 high to enable SMPS2. Drive ON2 low to ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator NOTE: PLACE C22 BETWEEN IN AND PGND AS CLOSE AS POSSIBLE TO THE MAX17020 OUTPUT C OUT1 0.1μF 12V TO 15V CHARGE PUMP C8 R4 0.1μF ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator IN TON SKIP 3.3V LINEAR REGULATOR RTC SECFB ILIM1 OUT1 V DD BST1 DH1 LX1 V DD DL1 PGND FB SELECT (PRESET vs. ADJ) FB1 ON1 PGOOD1 PAD Figure 2. Functional ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator Table 1. Component Selection for Standard Applications COMPONENT Input Voltage 24V IN Input Capacitor (4x) 10μF, 25V (C ) Taiyo Yuden TMK432BJ106KM IN SMPS 1 Output Capacitor ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator Detailed Description The MAX17020 step-down controller is ideal for high- voltage, low-power supplies for notebook computers. Maxim’s Quick-PWM pulse-width modulator in the MAX17020 is specifically designed for handling fast load steps ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator Free-Running Constant-On-Time PWM Controller with Input Feed-Forward The Quick-PWM control architecture is a pseudo-fixed- frequency, constant on-time, current-mode regulator with voltage feed-forward. This architecture relies on the output filter capacitor’s ESR ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator AGND LX NEG CURRENT VCC CURRENT LIMIT ILIM FB REFIN GND SKIP THREE-LEVEL DECODE Figure 3. Functional Diagram—Quick-PWM Core ______________________________________________________________________________________ INTEGRATOR REF GND AGND LIMIT VALLEY ZERO CROSSING GND ULTRASONIC THRESHOLD ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator Modes of Operation Forced-PWM Mode ( The low-noise forced-PWM mode (SKIP = V ables the zero-crossing comparator, which controls the low-side ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator Dynamic Output Voltage—OUT2 Only The MAX17020 regulates OUT2 to the voltage set at REFIN2, so the MAX17020 supports applications that require dynamic output-voltage changes between two set points by adjusting the ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator When V drops below the UVLO threshold (falling CC edge), the controller stops switching, and DH and DL are pulled low and a 10Ω switch discharges the outputs. When the 2V ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator logic-level PGOOD_ output voltage, connect an external pullup resistor between PGOOD_ and V pullup resistor works well in most applications. Overvoltage Protection (OVP) When the output voltage rises 16% above the ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator lower than this grant no further size-reduction bene- fit. The optimum operating point is usually found between 20% and 50% ripple current. When pulse skipping (SKIP low and light loads), the ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator multiplied by the output capacitor’s ESR. Therefore, the maximum ESR required to meet ripple specifications is: V RIPPLE ≤ R ESR I LOAD MAX ( ) The actual capacitance value required ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator significantly higher, consider increasing the size of N Conversely, if the losses at V IN(MAX) higher, consider reducing the size of N not vary over a wide range, maximum efficiency is ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator Also, keep in mind that transient response performance of buck regulators operated too close to dropout is poor, and bulk output capacitance must often be added (see the V equation in ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator NOTE: PLACE C22 BETWEEN IN AND PGND AS CLOSE AS POSSIBLE TO THE MAX17020. L1 1.2V OUTPUT C OUT1 49.9kΩ 5V SYSTEM SUPPLY C1 1.0μF POWER GROUND ANALOG ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator PCB Layout Guidelines Careful PCB layout is critical to achieving low switching losses and clean, stable operation. The switching power stage requires particular attention. If possible, mount all the power components ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator NOTE: PLACE C22 BETWEEN IN AND PGND AS CLOSE AS POSSIBLE TO THE MAX17020. L1 1.5V OUTPUT C OUT1 R1 11.3kΩ R2 10kΩ 5V SYSTEM SUPPLY R10 47Ω C2 1.0μF 3.3V ...
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Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator Chip Information PROCESS: BiCMOS ______________________________________________________________________________________ Package Information For the latest package outline information www.maxim-ic.com/packages. PACKAGE TYPE PACKAGE CODE 32 TQFN T3255-3 DOCUMENT NO. 21-0140 33 ...
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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. 34 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products ...