• Device Type: PWM DC-DC Buck Regulator Controller
• Package Type: PDIP-8 (CPA suffix)

General Features

• High-efficiency step-down (buck) switching regulator
• Adjustable output voltage
• Low quiescent current
• Internal oscillator
• Current-mode PWM control
• Designed for battery-powered and portable equipment
• Requires external power MOSFET, diode, inductor, and output capacitor

Electrical Characteristics

• Input Voltage Range:
  • 4 V to 16 V
• Reference Voltage:
  • 1.5 V ±2%
• Quiescent Supply Current:
  • Typically 110 µA
• Shutdown Current:
  • Typically <10 µA

Oscillator

• Internal oscillator
• Switching Frequency:
  • 300 kHz typical

Output Regulation

• Adjustable output voltage
• Output voltage set using external resistor divider
• Suitable for:
  • 3.3 V
  • 5 V
  • Adjustable outputs

Efficiency

• Up to 90% typical
• Optimized for battery-powered applications
• Low power dissipation

Protection Features

• Current limiting
• Undervoltage lockout (UVLO)
• Soft-start characteristics
• Shutdown control input
• Thermal protection (application dependent)

Control Features

• PWM current-mode control
• Fast transient response
• Excellent line regulation
• Excellent load regulation

Package Information

• Package Type: PDIP
• Pin Count: 8 Pins
• Mounting Style: Through-Hole

Operating Temperature

• MAX763ACPA:
  • 0°C to +70°C

Typical Applications

• Portable instruments
• Battery-powered equipment
• Embedded systems
• Industrial controls
• Telecommunications equipment
• Handheld devices
• Point-of-sale terminals
• Distributed power systems

Key Features

• High-efficiency buck regulator controller
• 4 V to 16 V input range
• 300 kHz switching frequency
• 110 µA quiescent current
• <10 µA shutdown current
• Adjustable output voltage
• Up to 90% efficiency
• 8-pin DIP package