MAX15021EVKIT+ Maxim Integrated, MAX15021EVKIT+ Datasheet
MAX15021EVKIT+
Specifications of MAX15021EVKIT+
Related parts for MAX15021EVKIT+
MAX15021EVKIT+ Summary of contents
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Dual, 4A/2A, 4MHz, Step-Down DC-DC Regulator with Tracking/Sequencing Capability General Description The MAX15021 is a dual-output, pulse-width-modulated (PWM), step-down DC-DC regulator with tracking (coin- cident and ratiometric) and sequencing options. The device operates from 2.5V to 5.5V and each output ...
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... A J MIN TYP MAX = V = DVDD1 2.5 2.1 2.2 0.12 3.5 20 4096 64 -1 0.593 0.599 0.605 0.3 V AVIN 100 UNITS 5 µA Clock Cycles Steps +1 µ 0 MHz 90 mΩ 50 mΩ 180 mΩ 100 mΩ Maxim Integrated ...
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... Minimum Controllable Off-Time PWM Ramp Amplitude PWM Ramp Valley THERMAL SHUTDOWN Thermal Shutdown Temperature Thermal Shutdown Hysteresis Note 3: Specifications are 100% production tested at T temperature are guaranteed by design. Note 4: When operating with V AVIN Maxim Integrated = 25kΩ, and T SGND_ PGND_ T SYMBOL CONDITIONS ...
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... V PVIN2 1.5035 1.5030 PVIN1 1.5025 f = 2MHz SW 1.5020 2.0 2.5 3.0 0 0.25 0.50 LOAD CURRENT (A) SWITCHING FREQUENCY vs. TEMPERATURE 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -40 -25 - TEMPERATURE (°C) = +25°C, unless 3.3V VIN2 V = 1.5V OUT2 f = 2MHz SW EN1 = 0V 1000 3000 = 2MHz SW 0.75 1.00 1.25 1. 2MHz SW 95 110 125 Maxim Integrated ...
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... V (NOM) = 2.2V UVLO 0.970 -40 -25 - TEMPERATURE (°C) COINCIDENT TRACKING SOFT-START 1ms/div Maxim Integrated Typical Operating Characteristics (continued 5V 3.3V, V PVIN2 OUT1 OUT2 95 110 125 95 110 125 MAX15021 toc13 V AVIN 5V/div 0V V ...
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... CHANNEL 2 LOAD STEP RESPONSE MAX15021 toc18 EN1 = 0V 20μs/div PVIN1 = PVIN2 5V/div 0V V LX1 5V/div 0V V LX2 5V/div 0V = +25°C, unless A V PVIN1 5V/div 0V V OUT1 3.3V, AC-COUPLED 100mV/div I OUT1 2A/div 0A V PVIN2 5V/div 0V V OUT2 1.5V, AC-COUPLED 100mV/div I OUT2 1A/div 0A Maxim Integrated ...
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... Oscillator Timing Resistor Connection. Connect a 4.2kΩ to 33kΩ resistor from RT to SGND to program 28 RT the switching frequency from 500kHz to 4MHz. Exposed Pad. Connect large copper plane at SGND potential to improve thermal dissipation. Do — EP not use as the main SGND connection. Maxim Integrated MAX15021 Pin Description FUNCTION 7 ...
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... SHIFT CLK Functional Diagrams SGND MAX15021 PWM CONTROLLER 1 SEQ1 SHDN ON1 SEQ1 SEQ2 OVL1 OVL CONFIG OVL2 CLK1 CLK2 RES OVERLOAD MANAGEMENT AVIN BREAK BEFORE- MAKE D0 EN1 1.225V 1.1V DVDD1 PVIN1 HIGH-SIDE CURRENT SENSE LX1 LOW-SIDE CURRENT SENSE PGND1 Maxim Integrated ...
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... ON2 1.225V 1.1V V REF CLK2 DOWN2 V REF DIGITAL V R2 SOFT-START AND SOFT-STOP EN2 FB2 COMP2 CLK2 RAMP Maxim Integrated Functional Diagrams (continued) SHDN ON1 ON2 SEQ1 EN CONFIG SEQ2 SEQ1 E/A OVL2 ILIM2 CPWM LEVEL CLK SHIFT MAX15021 MAX15021 PWM CONTROLLER 2 SEQ1 SEQ2 OVL1 ...
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... SOFT-START a) COINCIDENT TRACKING OUTPUTS SOFT-START b) RATIOMETRIC TRACKING OUTPUTS AVIN SOFT-START c) SEQUENCED OUTPUTS Figure 1. Graphical Representation of Coincident Tracking, Ratiometric Tracking, and Sequencing Oscillator ): SW × f [kHz 067 [ μ × 4[MHz] Tracking/Sequencing V OUT1 V OUT2 SOFT-STOP V OUT1 V OUT2 SOFT-STOP V OUT1 V OUT2 SOFT-STOP Maxim Integrated ...
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... OUTPUT 2 IS THE MASTER AND OUTPUT 1 IS THE SLAVE. Figure 2. Ratiometric Tracking and Coincident Tracking Configurations Maxim Integrated when the other output is shorted to ground. When the slave is shorted and enters hiccup mode, the master will soft-stop. When the master is shorted and the part enters in hiccup mode, the slave will ratiometrically soft- stop ...
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... INITIATE HICCUP IN COUNT OF 4 TIMEOUT N CL CLR IN COUNT CLR CLR Startup into a Prebiased Output (Sequencing Mode) PWM Controllers Design Procedure Setting the Switching Frequency × f [kHz 067 [V] SW Ω μ × 4[MHz] ) should be derated SW Maxim Integrated N HT AVIN ...
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... × V [V] f [MHz] PVIN_ SW Maxim Integrated where V regulator output voltage, and f quency. Use typical values for V that efficiency is optimum for typical conditions. The switching frequency (f 500kHz and 4MHz (see the Oscillator section). The peak-to-peak inductor current (ΔI ): reflects the peak-to-peak output ripple, is largest at the maximum input voltage ...
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... STEP is the load step the rise time of the STEP STEP is the response time of the RESPONSE Compensation-Design Guidelines /V where the ramp voltage AVIN RAMP ) is a function of the V and results in a fixed AVIN ) and its equivalent series OUT μ μ Maxim Integrated ...
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... FREQUENCY (Hz) Figure 4a. Power Modulator Gain and Phase Response with Lossy Bulk Output Capacitor(s) (Aluminum) Maxim Integrated use aluminum electrolytic capacitors while for space- sensitive applications, use low-ESR tantalum or multilay ceramic chip (MLCC) capacitors at the output. The AVIN = = ...
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... Phase Response with Low Parasitic Capacitors (MLCCs) (again, Gain CO E/A ) (see Figure 4d MAX15021 fig04d 80 60 < -20 < G MOD -40 -60 f ESR -80 10 100 1k 10k 100k 1M FREQUENCY (Hz) + Gain = MOD and Gain MOD 270 203 135 MOD -68 -135 -203 -270 10M Maxim Integrated ...
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... Gain 4(V/V) ( MOD π × [kHz] CO where V is the 0.6V (typ) FB_ input-voltage set-point the value of the regulator inductor, ESR is the Maxim Integrated > ZERO,ESR , a Type II compensa- , and MID,ZERO . HIGH,POLE : LC Figure 5a. Type II Compensation Network GAIN × OUT OUT . See the Output- ...
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... π × << C then COMP_ F I 5TH ASYMPTOTE -1 (ω ω (rad/sec) 3RD POLE - ESR × × π × × Maxim Integrated ...
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... C CO OUT × π × × [kHz Maxim Integrated Solving for equal to one anoth For those situations where below one [kHz ceramic capacitor is used, then the capacitor ESR zero ...
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... Thin copper PCBs can compromise efficiency since high currents are involved in the application. Also thicker copper con- ducts heat more effectively, thereby reducing ther- mal impedance reference PCB layout included in the MAX15021 Evaluation Kit is also provided to further aid layout. Maxim Integrated ...
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... Dual, 4A/2A, 4MHz, Step-Down DC-DC Regulator with Tracking/Sequencing Capability PGND SGND R Figure 7. MAX15021 Double Buck with Tracking Maxim Integrated IN2 DD2 AVIN EN2 PVIN2 DVDD2 FB2 COMP2 PGND2 DVDD1 MAX15021 PGND1 RT SGND SEL COMP1 V AVIN MAX15021 Typical Operating Circuits ...
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... 1OUT2 2OUT2 C CF2 L 2 LX2 OUT2 C S2 PGND2 DD1 DVDD1 EN1 IN1 PVIN1 L 1 LX1 OUT1 C S1 PGND1 1OUT1 R I1 FB1 R 2OUT1 CF1 V OUT2 V AVIN V OUT1 Maxim Integrated ...
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... Dual, 4A/2A, 4MHz, Step-Down DC-DC Regulator with Tracking/Sequencing Capability Chip Information PROCESS: BiCMOS Maxim Integrated MAX15021 Package Information For the latest package outline information and land patterns (foot- prints www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. ...
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... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 24 © 2012 Maxim Integrated Products, Inc. DESCRIPTION Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc. Revision History PAGES CHANGED — ...