Data Sheet

ManualsBrandsUnbranded ManualsActive ComponentsPMIC - DC/DC voltage regulator MC33063ADR Converter, Boost SOIC 8

Switch Collector

Switch Emitter

Timing Capacitor

GND

Driver Collector

Comparator Inverting Input

D (SOIC) OR P (PDIP) PACKAGE

(TOP VIEW)

DRJ (QFN) PACKAGE

(TOP VIEW)

Comparator Inverting Input

Switch Collector

Switch Emitter

Timing Capacitor

GND

Driver Collector

†

The exposed thermal pad is electrically bonded internally to pin 4 (GND) .

†

MC33063A

MC34063A

www.ti.com

SLLS636M –DECEMBER 2004– REVISED JANUARY 2011

1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING

REGULATORS

Check for Samples: MC33063A, MC34063A

FEATURES

• Wide Input Voltage Range: 3 V to 40 V • Precision Internal Reference: 2%

• High Output Switch Current: Up to 1.5 A • Short-Circuit Current Limiting

• Adjustable Output Voltage • Low Standby Current

• Oscillator Frequency Up to 100 kHz

DESCRIPTION/ORDERING INFORMATION

The MC33063A and MC34063A are easy-to-use ICs containing all the primary circuitry needed for building

simple dc-dc converters. These devices primarily consist 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 devices require minimal external components to build converters in the boost, buck, and inverting

topologies.

The MC33063A is characterized for operation from –40°C to 85°C, while the MC34063A is characterized for

operation from 0°C to 70°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (23 pages)

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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com 1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORS Check for Samples: MC33063A, MC34063A FEATURES 1 • • • • • • • Wide Input Voltage Range: 3 V to 40 V High Output Switch Current: Up to 1.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com Output Switch (1) PARAMETER TEST CONDITIONS VCE(sat) Saturation voltage – Darlington connection ISW = 1 A, pins 1 and 8 connected VCE(sat) Saturation voltage – non-Darlington connection (2) ISW = 1 A, RPIN8 = 82 Ω to VCC, forced β ∼ 20 hFE DC current gain ISW = 1 A, VCE = 5 V IC(off) Collector off-state current VCE = 40 V (1) (2) TA MIN TYP MAX Full range 1 1.3 V Full range 0.45 0.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com TYPICAL CHARACTERISTICS 1000 1.8 100 Pin 7 = VCC Pin 5 = GND TA = 25°C VCE(SAT), Output Switch Saturation Voltage (V) On-Off Time (µs) t ON-OFF, Output Switch VCC = 5 V t ON 10 t OFF 1 0.01 0.1 1 CT, Oscillator Timing Capacitor (nF) 10 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1 0 0.0 0.4 0.6 380 Darlington Connection 340 1.0 Force Beta = 20 0.8 0.6 VCC = 5 V Pin 7 = VCC Pin 2, 3, 5 = GND TA = 25°C 0.2 0.0 0 0 0.0 0.2 1 0.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) 170 µH L 1 8 180 Ω S Q Q2 1N5819 Q1 R 2 7 Ipk RSC 0.22 Ω VIN 12 V 6 + 3 CT VCC + _ Comparator 100 µF 1.25-V Reference Regulator CT 1500 pF 4 5 1.0 µH R2 R1 2.2 kΩ 47 kΩ CO 330 µF VOUT + 1.25 (1 ) R2) R1 VOUT 28 V/175 mA + 100 µF + Optional Filter Figure 6. Step-Up Converter TEST CONDITIONS RESULTS Line regulation VIN = 8 V to 16 V, IO = 175 mA 30 mV ± 0.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com R* 8 1 7 VOUT 2 RSC 6 VIN 6 *R a) EXTERNAL npn SWITCH A. 1 7 2 RSC VIN 8 VOUT 0 for constant V in b) EXTERNAL npn SATURATED SWITCH (see Note A) If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (≤300 mA) and high driver currents (≥30 mA), it may take up to 2 μs to come out of saturation.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com 1 8 S Q Q2 Q1 R 2 7 VIN 25 V Oscillator 6 + 1N5819 Ipk RSC 0.33 Ω CT 3 VCC + _ Comparator 100 µF L 220 µH CT 470 pF 1.25-V Reference Regulator 4 5 1.0 µH R2 VOUT 5 V/500 mA 3.8 kΩ R1 1.2 kΩ CO 470 µF + VOUT + 1.25 (1 ) R2) R1 + 100 µF Optional Filter Figure 8. Step-Down Converter TEST CONDITIONS RESULTS Line regulation VIN = 15 V to 25 V, IO = 500 mA 12 mV ± 0.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com 1 8 S Q Q2 Q1 R 2 7 Oscillator 6 VIN 4.5 V to 6.0 V + L 88 µH Ipk RSC 0.24 Ω CT 3 VCC + _ Comparator 100 µF 1.25-V Reference Regulator 1N5819 + 1500 pF 4 5 1.0 µH R1 R2 8.2 kΩ VOUT −12 V/100 mA 953 Ω CO 1000 µF VOUT + *1.25 (1 ) R2) R1 100 µF + + Optional Filter Figure 10. Voltage-Inverting Converter TEST CONDITIONS RESULTS Line regulation VIN = 4.5 V to 6 V, IO = 100 mA 3 mV ± 0.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.
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MC33063A MC34063A SLLS636M – DECEMBER 2004 – REVISED JANUARY 2011 www.ti.com REVISION HISTORY Changes from Revision L (December 2009) to Revision M Page • Changed pnp to npn for figure 7b, text typo. ........................................................................................................................ 7 • Changed figure 11b schematic. ............................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device MC33063ADR Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 MC33063ADRJR SON DRJ 8 1000 330.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 MC34063ADR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) MC33063ADR SOIC D 8 2500 340.5 338.1 20.6 MC33063ADRJR SON DRJ 8 1000 367.0 367.0 35.0 MC34063ADR SOIC D 8 2500 340.5 338.1 20.6 MC34063ADRJR SON DRJ 8 1000 210.0 185.0 35.
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