MAX1634

NOT RECOMMENDED FOR NEW DESIGNS

Multi Output, Low-Noise Power Supply Controllers for Notebook Computers

Notebook Power Controllers Offer the Highest Performance and the Smallest Size through the Highest Level of Integration

Data Sheet (Rev. 4)
Part Models
3
1ku List Price
price unavailable
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Part Details

  • 96% Efficiency
  • +4.2V to +30V Input Range
  • 2.5V to 5.5V Dual Adjustable Outputs
  • Selectable 3.3V and 5V Fixed or Adjustable Outputs (Dual Mode™)
  • 12V Linear Regulator
  • Adjustable Secondary Feedback (MAX1631/MAX1634)
  • 5V/50mA Linear Regulator Output
  • Precision 2.5V Reference Output
  • Programmable Power-Up Sequencing
  • Power-Good (active-low RESET) Output
  • Output Overvoltage Protection (MAX1630/MAX1631/MAX1632)
  • Output Undervoltage Shutdown (MAX1630/MAX1631/MAX1632)
  • 200kHz/300kHz Low-Noise, Fixed-Frequency Operation
  • Low-Dropout, 99% Duty-Factor Operation
  • 2.5mW Typical Quiescent Power (+12V input, both SMPSs on)
  • 4µA Typical Shutdown Current
  • 28-Pin SSOP Package
MAX1634
Multi Output, Low-Noise Power Supply Controllers for Notebook Computers
MAX1630/MAX1631/MAX1632/MAX1633/MAX1634/MAX1635 Functional Diagram MAX1630/MAX1631/MAX1632/MAX1633/MAX1634/MAX1635 Block Diagram MAX1631/MAX1634 Pin Configuration
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Fan Speed & TEC Controllers 2
MAX786
PRODUCTION Dual-Output Power Supply Controller for Notebook Computers
MAX782
Triple-Output Power Supply Controller for Notebook Computers
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Evaluation Kits

MAX1631EVKIT

Evaluation Kit for the MAX1630, MAX1631, MAX1632

Buy Now View Details

Features and Benefits

  • Battery Range:
    • 5.2V to 20V (MAX1630)
    • 5.2V to 28V (MAX1631)
    • 6.5V to 28V (MAX1632)
  • Outputs:
    • 3.3V at 3A
    • 12V at 120mA
    • 5V at 3A
    • 5V at 30mA Keep-Alive
  • 1:4 Transformer (MAX1630)
    1:2.2 Transformer (MAX1632)
  • Adjustable 2.5V to 5.5V Outputs (optional resistor divider)
  • Precision 2.5V Reference Output
  • Oscillator Sync Input
  • Low-Noise Mode Control Input (active-low SKIP)
  • Power-Good Monitor (active-low RESET output)
  • Fully Assembled and Tested

Product Details

The MAX1630/MAX1631/MAX1632 evaluation kits (EV kits) each consist of one of three preassembled and tested evaluation boards (EV boards) that embody the standard application circuits. The MAX1630 and MAX1632 EV boards provide the triple-output 3.3V/5V/12V circuit, and the MAX1631 EV board provides the dual-output 3.3V/5V circuit.

All three use the same PC board but have different components to accommodate different input voltage ranges. The main differences between the MAX1630 and MAX1632 EV boards are in the turns ratio (1:4 or 1:2.2) and in the location of the transformer connection (3.3V side or 5V side). Connecting the transformer to the 3.3V side allows lower input voltage. Connecting the transformer to the 5V side provides slightly better efficiency and lower stress voltages.

These circuits are configured to deliver up to 3A of output current on each of the main PWM outputs with greater than 90% efficiency. The MAX1630/MAX1631/MAX1632 EV kits can also be used to evaluate other output voltages.

Applications

  • Desktop CPU Local DC-DC Converters
  • Notebook and Subnotebook Computers
  • PDAs and Mobile Communicators

MAX1632EVKIT

Evaluation Kit for the MAX1630, MAX1631, MAX1632

Buy Now View Details

Features and Benefits

  • Battery Range:
    • 5.2V to 20V (MAX1630)
    • 5.2V to 28V (MAX1631)
    • 6.5V to 28V (MAX1632)
  • Outputs:
    • 3.3V at 3A
    • 12V at 120mA
    • 5V at 3A
    • 5V at 30mA Keep-Alive
  • 1:4 Transformer (MAX1630)
    1:2.2 Transformer (MAX1632)
  • Adjustable 2.5V to 5.5V Outputs (optional resistor divider)
  • Precision 2.5V Reference Output
  • Oscillator Sync Input
  • Low-Noise Mode Control Input (active-low SKIP)
  • Power-Good Monitor (active-low RESET output)
  • Fully Assembled and Tested

Product Details

The MAX1630/MAX1631/MAX1632 evaluation kits (EV kits) each consist of one of three preassembled and tested evaluation boards (EV boards) that embody the standard application circuits. The MAX1630 and MAX1632 EV boards provide the triple-output 3.3V/5V/12V circuit, and the MAX1631 EV board provides the dual-output 3.3V/5V circuit.

All three use the same PC board but have different components to accommodate different input voltage ranges. The main differences between the MAX1630 and MAX1632 EV boards are in the turns ratio (1:4 or 1:2.2) and in the location of the transformer connection (3.3V side or 5V side). Connecting the transformer to the 3.3V side allows lower input voltage. Connecting the transformer to the 5V side provides slightly better efficiency and lower stress voltages.

These circuits are configured to deliver up to 3A of output current on each of the main PWM outputs with greater than 90% efficiency. The MAX1630/MAX1631/MAX1632 EV kits can also be used to evaluate other output voltages.

Applications

  • Desktop CPU Local DC-DC Converters
  • Notebook and Subnotebook Computers
  • PDAs and Mobile Communicators

MAX1630EVKIT

Evaluation Kit for the MAX1630, MAX1631, MAX1632

Buy Now View Details

Features and Benefits

  • Battery Range:
    • 5.2V to 20V (MAX1630)
    • 5.2V to 28V (MAX1631)
    • 6.5V to 28V (MAX1632)
  • Outputs:
    • 3.3V at 3A
    • 12V at 120mA
    • 5V at 3A
    • 5V at 30mA Keep-Alive
  • 1:4 Transformer (MAX1630)
    1:2.2 Transformer (MAX1632)
  • Adjustable 2.5V to 5.5V Outputs (optional resistor divider)
  • Precision 2.5V Reference Output
  • Oscillator Sync Input
  • Low-Noise Mode Control Input (active-low SKIP)
  • Power-Good Monitor (active-low RESET output)
  • Fully Assembled and Tested

Product Details

The MAX1630/MAX1631/MAX1632 evaluation kits (EV kits) each consist of one of three preassembled and tested evaluation boards (EV boards) that embody the standard application circuits. The MAX1630 and MAX1632 EV boards provide the triple-output 3.3V/5V/12V circuit, and the MAX1631 EV board provides the dual-output 3.3V/5V circuit.

All three use the same PC board but have different components to accommodate different input voltage ranges. The main differences between the MAX1630 and MAX1632 EV boards are in the turns ratio (1:4 or 1:2.2) and in the location of the transformer connection (3.3V side or 5V side). Connecting the transformer to the 3.3V side allows lower input voltage. Connecting the transformer to the 5V side provides slightly better efficiency and lower stress voltages.

These circuits are configured to deliver up to 3A of output current on each of the main PWM outputs with greater than 90% efficiency. The MAX1630/MAX1631/MAX1632 EV kits can also be used to evaluate other output voltages.

Applications

  • Desktop CPU Local DC-DC Converters
  • Notebook and Subnotebook Computers
  • PDAs and Mobile Communicators
MAX1631EVKIT
Evaluation Kit for the MAX1630, MAX1631, MAX1632
MAX1632EVKIT
Evaluation Kit for the MAX1630, MAX1631, MAX1632
MAX1630EVKIT
Evaluation Kit for the MAX1630, MAX1631, MAX1632

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