MAX1536

PRODUCTION

3.6A, 1.4MHz, Low-Voltage, Internal-Switch Step-Down Regulator with Dynamic Output Voltage Control

3.6A, 1.4MHz, Low-Voltage, Internal Switch Step-Down Regulator with Dynamic Output-Voltage Control

Part Models
2
1ku List Price
Starting From $7.94
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Part Details

  • Dynamically Selectable Output Voltage from +0.7V to VIN
  • Internal PMOS/NMOS Switches
    • 54mΩ/47mΩ On-Resistance at VIN = +4.5V
    • 63mΩ/53mΩ On-Resistance at VIN = +3.0V
  • +3.0V to +5.5V Input Voltage Range
  • 1.4MHz Maximum Switching Frequency
  • 2V ±0.75% Reference Output
  • Constant-Off-Time PWM Operation
  • Selectable Idle Mode/PWM Operation at Light Loads
  • 100% Duty Factor in Dropout
  • Digital Soft-Start Inrush Current Limiting
  • <1µA Typical Shutdown Supply Current
  • <750µA Quiescent Supply Current
  • Thermal Shutdown
  • 1% VOUT Accuracy Over Line and Load
  • External Reference Input
  • Power-Good Window Comparator
  • Selectable Power-Good Blanking Time During Output-Voltage Transition
MAX1536
3.6A, 1.4MHz, Low-Voltage, Internal-Switch Step-Down Regulator with Dynamic Output Voltage Control
MAX1536 Functional Diagram MAX1536 Pin Configuration
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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
External Power Switch Buck Controllers 1
MAX1714 PRODUCTION High-Speed Step-Down Controller for Notebook Computers
Internal Power Switch Buck Regulators 5
MAX1830 PRODUCTION 3A, 1MHz, Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches
MAX1843 PRODUCTION 2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in TQFN Package
MAX1842 PRODUCTION 1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches
MAX1809 PRODUCTION 3A, 1MHz, DDR Memory Termination Supply
MAX1644 PRODUCTION 2A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches
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Evaluation Kits

MAX1536EVKIT

Evaluation Kit for the MAX1536

Features and Benefits

  • 3.0V to 5.5V Input Voltage Range
  • Dynamically Selectable 1.5V/1.8V Output Voltage
  • Adjustable Output Voltage from 0.7V to VIN
  • Up to 3.6A Output Current
  • Up to 1.4MHz Switching Frequency
  • <0.2µA (typ) IC Shutdown Supply Current
  • No External Schottky Diode Required
  • Power-Good Output
  • Surface-Mount Construction
  • Fully Assembled and Tested

Product Details

The MAX1536 evaluation kit (EV kit) provides dynamically adjustable 1.5V/1.8V output voltages from a 3.0V to 5.5V input voltage source. It delivers up to 3.6A output current with up to 93% efficiency.

The MAX1536 EV kit includes the MAX1536 step-down switching regulator with an internal synchronous rectifier to increase efficiency and reduce the number of external components. The resistor-programmable fixedoff- time, current-mode architecture allows an optimum response to load-and-line transients. This EV kit, as configured, operates at approximately 570kHz and is optimized for 3.3V input and 1.8V output.

The EV kit is a fully assembled and tested circuit board. It also allows the evaluation of other output voltages in the 0.7V to VIN range.

Applications

  • Active Termination Buses (MAX1993)
  • Chipset/Graphics Cores
  • DDR Memory Termination (MAX1993)
  • Notebook Computers with Dual-Supply Voltages

MAX1536EVKIT
Evaluation Kit for the MAX1536

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