MC33063A-Q1

ACTIVE

1.5-A peak boost/buck/inverting switching regulator, AEC-Q100 qualified

Product details

Vin (min) (V) 3 Vin (max) (V) 40 Operating temperature range (°C) -40 to 125 Topology Boost, Buck, Flyback, Forward, SEPIC Rating Automotive Vout (min) (V) 1.25 Vout (max) (V) 40 Features Nonsynchronous rectification Iq (typ) (µA) 4000 Duty cycle (max) (%) 90 TI functional safety category Functional Safety-Capable
Vin (min) (V) 3 Vin (max) (V) 40 Operating temperature range (°C) -40 to 125 Topology Boost, Buck, Flyback, Forward, SEPIC Rating Automotive Vout (min) (V) 1.25 Vout (max) (V) 40 Features Nonsynchronous rectification Iq (typ) (µA) 4000 Duty cycle (max) (%) 90 TI functional safety category Functional Safety-Capable
SOIC (D) 8 29.4 mm² 4.9 x 6
  • AEC-Q100 Qualified With the:
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Wide Input Voltage Range: 3 V to 40 V
  • High Output Switch Current: Up to 1.5 A
  • Adjustable Output Voltage
  • Oscillator Frequency: Up to 100 kHz
  • Precision Internal Reference: 2%
  • Short-Circuit Current Limiting
  • Low Standby Current
  • AEC-Q100 Qualified With the:
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Wide Input Voltage Range: 3 V to 40 V
  • High Output Switch Current: Up to 1.5 A
  • Adjustable Output Voltage
  • Oscillator Frequency: Up to 100 kHz
  • Precision Internal Reference: 2%
  • Short-Circuit Current Limiting
  • Low Standby Current

The MC33063A-Q1 device is an easy-to-use IC containing all the primary circuitry needed for building simple DC-DC converters. The device primarily consists of an internal temperature-compensated reference, a comparator, an oscillator, a PWM controller with active current limiting, a driver, and a high-current output switch. Thus, the device requires minimal external components to build converters in the boost, buck, and inverting topologies.

The MC33063A-Q1 device is characterized for operation from –40°C to 125°C.

The MC33063A-Q1 device is an easy-to-use IC containing all the primary circuitry needed for building simple DC-DC converters. The device primarily consists of an internal temperature-compensated reference, a comparator, an oscillator, a PWM controller with active current limiting, a driver, and a high-current output switch. Thus, the device requires minimal external components to build converters in the boost, buck, and inverting topologies.

The MC33063A-Q1 device is characterized for operation from –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet MC33063A-Q1 1.5-A Peak Boost, Buck, Inverting Switching Regulator datasheet (Rev. C) PDF | HTML 30 Dec 2014
Functional safety information MC33063A-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 17 Jul 2023
Application note Adding shutdown feature to MC33063A, MC34063A switching regulators 05 Feb 2013
Application note Application of the MC34063 Switching Regulator (Rev. B) 06 Nov 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

MC33063A(-Q1) Unencrypted PSpice Transient Model

SLLM444.ZIP (2 KB) - PSpice Model
Simulation model

MC33063A-Q1 TINA-TI Transient Reference Design

SLLM380.TSC (1917 KB) - TINA-TI Reference Design
Simulation model

MC33063A-Q1 TINA-TI Transient Spice Model

SLLM381.ZIP (11 KB) - TINA-TI Spice Model
Reference designs

TIDA-01168 — Bidirectional DC/DC Converter Reference Design for 12-V/48-V Automotive Systems

The TIDA-01168 reference design is a four-phase, bidirectional DC-DC converter development platform for 12-V/48-V automotive systems. The system uses two LM5170-Q1 current controllers and a TMS320F28027F microcontroller (MCU) for the power stage control. LM5170-Q1 subsystems use average current (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian

Ordering & quality

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  • Ongoing reliability monitoring
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