MC33063ADR Step-Up/Step-Down Controller, SOIC-8, Industrial-Grade, for Power Management Circuits, Reliable Performance, Ready to Ship
Category:
Integrated Circuits ICs
Payment Method:
T/T
Specifications
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Introduction
1. Product Overview
MC33063ADR is a high-performance monolithic DC-DC switching regulator controller developed for power conversion systems. It integrates key functional modules such as an error amplifier, oscillator, pulse-width modulation (PWM) comparator, and current-sensing circuit into a single chip, enabling efficient step-down (buck), step-up (boost), and voltage-inverting conversion. With its wide input voltage range and flexible configuration capability, it is ideal for electronic systems requiring stable power supplies with strict demands on efficiency, cost, and reliability, and is widely used in industrial, automotive, and consumer electronics fields.
2. Core Electrical Parameters
- Supply Voltage Range: 3.0V~40V, supporting a wide range of input power sources from low-voltage batteries to industrial power supplies;
- Switching Frequency: Typical value of 100kHz, adjustable up to 1000kHz via external components, adapting to different filter design requirements;
- Output Current Capability: Up to 1.5A output current (with appropriate external power components), meeting medium-power supply needs;
- Reference Voltage: 2.5V ±2% (at 25℃), providing high-precision voltage regulation reference;
- Operating Temperature Range: -40℃~85℃ (industrial-grade standard), ensuring stable operation in extreme environmental conditions;
- Quiescent Current: Typical value of 8mA (no load), low-power design reduces standby energy consumption;
- Package Type: SOIC-8 (Small Outline Integrated Circuit package), compact size with 1.27mm pin pitch, facilitating PCB miniaturization and mass production.
3. Core Functional Features
- Integrated Functional Modules: Incorporates error amplifier, oscillator, PWM comparator, and current sensor, reducing the number of external components by over 40% compared to discrete solutions and simplifying system design;
- Flexible Conversion Modes: Supports buck, boost, and inverting voltage conversion configurations, eliminating the need for multiple controller chips in multi-mode power systems;
- Programmable Performance: Switching frequency and output voltage can be adjusted via external resistors and capacitors, offering high design flexibility for diverse application requirements;
- Comprehensive Protection Mechanisms: Equipped with built-in overcurrent protection, short-circuit protection, and thermal shutdown functions, effectively preventing chip damage caused by abnormal working conditions and improving system reliability;
- Wide Input Adaptability: 3.0V~40V input voltage range compatible with lead-acid batteries, lithium batteries, and industrial 24V power supplies, suitable for multi-scenario power supply systems.
4. Typical Application Scenarios
- Industrial Control Field: Motor drive power supplies, PLC (Programmable Logic Controller) power modules, industrial sensor power units, and DC power backup systems;
- Automotive Electronics Field: In-vehicle auxiliary power supplies (for navigation and entertainment systems), automotive sensor power circuits, and on-board charger auxiliary modules;
- Consumer Electronics Field: Portable device charging circuits, battery-powered equipment power management, and LED driving power supplies;
- Communication Equipment Field: Low-power radio transceiver power supplies, network terminal power modules, and communication router backup power units.
