MAX15023ETG+ Maxim Integrated Products, MAX15023ETG+ Datasheet
MAX15023ETG+
Specifications of MAX15023ETG+
Related parts for MAX15023ETG+
MAX15023ETG+ Summary of contents
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... Accurate Voltage Reference o Internal Boost Diodes o Adaptive Synchronous Rectification Eliminates External Freewheeling Schottky Diodes o Hiccup-Mode Short-Circuit Protection and Thermal Shutdown o Power-Good Outputs and Analog Enable Inputs for Power Sequencing PART MAX15023ETG+ MAX15023ETG/V+ + Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. TOP VIEW SGND ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller ABSOLUTE MAXIMUM RATINGS IN to SGND.............................................................-0.3V to +30V BST_ to V ............................................................-0.3V to +30V CC LX_ to SGND .............................................................-1V to +30V EN_ to SGND............................................................-0.3V to +6V PGOOD_ to SGND .................................................-0.3V to ...
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Wide 4.5V to 28V Input, Dual-Output ELECTRICAL CHARACTERISTICS (continued 12V 33kΩ 4.7µ VCC (Note 3) PARAMETER SYMBOL FB_ to COMP_ Transconductance Amplifier Open-Loop Gain Amplifier Unity-Gain Bandwidth COMP_ Swing (High) COMP_ ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller ELECTRICAL CHARACTERISTICS (continued 12V 33kΩ 4.7µ VCC (Note 3) PARAMETER SYMBOL CURRENT LIMIT/HICCUP Cycle-by-Cycle, Low-Side, Source Peak Current-Limit Threshold Adjustment Range LIM_ ...
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Wide 4.5V to 28V Input, Dual-Output (Supply = IN = 12V, unless otherwise noted. See Typical Application Circuit of Figure 6.) EFFICIENCY vs. LOAD CURRENT 3.3V 90 OUT1 1.2V OUT1 70 65 ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller (Supply = IN = 12V, unless otherwise noted. See Typical Application Circuit of Figure 6 CURRENT IN VCC vs. SWITCHING FREQUENCY 210 ...
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Wide 4.5V to 28V Input, Dual-Output (Supply = IN = 12V, unless otherwise noted. See Typical Application Circuit of Figure 6.) LINE-TRANSIENT RESPONSE MAX15023 toc17 2ms/div STARTUP AND DISABLE FROM EN MAX15023 toc19 I = 500mA OUT2 2ms/div STARTUP AND ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller (Supply = IN = 12V, unless otherwise noted. See Typical Application Circuit of Figure 6.) STARTUP INTO PREBIASED OUTPUT (1V PREBIASED) MAX15023 toc23 0V 2ms/div DH_ AND DL_ DISOVERLAP MAX15023 toc25 ...
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Wide 4.5V to 28V Input, Dual-Output PIN NAME Feedback Input for Regulator 1. Connect FB1 to a resistive divider between Output 1 and SGND to adjust 1 FB1 the output voltage between 0.6V and (0.85 x input voltage (V)). See ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller PIN NAME Low-Side Gate-Driver Supply Return (Regulator 2). Connect to the source of the low-side MOSFET of 13 PGND2 Regulator 2. Low-Side Gate-Driver Output for Regulator 2. DL2 swings from V ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller ______________________________________________________________________________________ Functional Diagram 11 ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller Detailed Description The MAX15023 dual, synchronous, step-down con- troller operates from a 5.5V to 28V or 5V ±10% input voltage range and generates two independent output voltages. As long as the ...
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Wide 4.5V to 28V Input, Dual-Output The internal oscillator frequency is divided down to obtain separated clock signals for each regulator. The phase difference of the two clock signals is 180°, so that the high-side MOSFETs turn on out-of-phase. The ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller the error amplifier. The duration of the soft-start ramp is 2048 switching cycles and the resolution is 1/64 of the steady-state regulation voltage. This allows a smooth increase of the output ...
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Wide 4.5V to 28V Input, Dual-Output Each PGOOD_ goes high (high impedance) when the corresponding regulator output increases above 92.5% of its nominal regulated voltage. Each PGOOD_ goes low when the corresponding regulator output voltage drops typically below 89.5% of ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller In case of a nonideal short circuit applied at the output, the output voltage equals the output impedance times the limited inductor current during this phase. After reaching the maximum allowable ...
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Wide 4.5V to 28V Input, Dual-Output Setting the Output Voltage Set the MAX15023 output voltage on each channel by connecting a resistive divider from the output to FB_ to SGND (Figure 3). Select R (FB_ to SGND resistor) less 2 ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller Setting the Cycle-by-Cycle, Low-Side, Source Peak Current Limit The minimum current-limit threshold must be high enough to support the maximum expected load current with the worst-case low-side MOSFET on-resistance value since ...
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Wide 4.5V to 28V Input, Dual-Output The output voltage ripple as a consequence of the ESR and the output capacitance is: ∆ = ∆ × ESR ESR L ∆ ∆ × × 8 ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller It is recommended to have a phase margin around +50° to +60° to maintain a robust loop stability and well-behaved transient response electrolytic or large-ESR tantalum output capacitor is ...
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Wide 4.5V to 28V Input, Dual-Output Type III Compensation Network If the output capacitor used is a low-ESR tantalum or ceramic type, the ESR-induced zero frequency is usual- ly above the targeted zero crossover frequency (f this case, Type III ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller 4) Place the second zero ( 0 whichever is lower and calculate R lowing equation − 1 π × × ...
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Wide 4.5V to 28V Input, Dual-Output To estimate the temperature rise of the die, use the fol- lowing equation: x θ where θ is the junction-to-ambient thermal resistance JA of the package, ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller V OUT1 12.1kΩ 12.1kΩ 22pF EN1 200kΩ 47kΩ PGOOD2 EN2 200kΩ 47kΩ PGOOD1 V IN 10µF 10µF 25V 25V Q1 FDS8880 C BST1 0.22µF V 0.8µH OUT1 ...
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Wide 4.5V to 28V Input, Dual-Output V IN 4. EN1 R PU1 EN2 PGOOD1 IN1 OUT1 C Q2 OUT1 Figure 7. Application Diagram (Operation with V ______________________________________________________________________________________ Synchronous ...
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Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller EN1 R PU1 EN2 PGOOD1 C IN1 OUT1 C Q2 OUT1 Figure 8. Application Diagram (Operation with Auxiliary 5V Supply and ...
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Wide 4.5V to 28V Input, Dual-Output Chip Information PROCESS: BiCMOS ______________________________________________________________________________________ Synchronous Buck Controller For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS ...
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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. 28 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2011 Maxim Integrated Products ...