Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Converter, Boost SOIC 8

FEATURES

Switch Collector

Switch Emitter

Timing Capacitor

GND

Driver Collector

Comparator Inverting Input

D (SOIC) PACKAGE

(TOP VIEW)

DESCRIPTION/ORDERING INFORMATION

MC33063A-Q1

www.ti.com

................................................................................................................................................ SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008

1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATOR

• Qualified for Automotive Applications

• 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 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 is characterized for operation from – 40 ° C to 125 ° C.

ORDERING INFORMATION

(1)

PACKAGE

(2)

ORDERABLE PART NUMBER TOP-SIDE MARKING

– 40 ° C to 125 ° C SOIC – D Reel of 2500 MC33063AQDRQ1 33063AQ

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com .

(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging .

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 (16 pages)

PAGE 1
MC33063A-Q1 www.ti.com ................................................................................................................................................ SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATOR FEATURES 1 • • • • • • • • Qualified for Automotive Applications 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...
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MC33063A-Q1 SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 ................................................................................................................................................ www.ti.com FUNCTIONAL BLOCK DIAGRAM Drive Collector 8 1 Switch Collector 2 Switch Emitter 3 Timing Capacitor Q2 S Q Q1 R 100 Ω Ipk Sense 7 Ipk Oscillator CT 6 VCC 1.
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MC33063A-Q1 www.ti.com ................................................................................................................................................
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MC33063A-Q1 SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 ................................................................................................................................................ www.ti.com TYPICAL CHARACTERISTICS 100 1.8 VCC = 5 V Pin 7 = VCC Pin 5 = GND TA = 25°C VCE(SAT), Output Switch Saturation Voltage (V) tON-OFF, Output Switch On-Off Time (µs) 1000 tON tOFF 10 1 0.01 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1 0 0.0 0.
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MC33063A-Q1 www.ti.com ................................................................................................................................................ SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 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.
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MC33063A-Q1 SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 ................................................................................................................................................ www.ti.com R* 8 1 7 1 7 2 VOUT 2 RSC RSC 6 VIN 8 VOUT VIN 6 * R " 0 for constant Vin a) EXTERNAL npn SWITCH A.
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MC33063A-Q1 www.ti.com ................................................................................................................................................ SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 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 1.25-V Reference Regulator L 220 µH CT 470 pF 4 5 1.0 µH R2 R1 1.2 kΩ VOUT 5 V/500 mA 3.8 kΩ CO 470 µF + VOUT + 1.25 (1 ) R2) R1 100 µF + Optional Filter Figure 8.
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MC33063A-Q1 SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 ................................................................................................................................................ www.ti.com 8 1 1 8 7 VOUT RSC VIN 7 2 VOUT 2 RSC 6 VIN a) EXTERNAL npn SWITCH 6 b) EXTERNAL pnp SATURATED SWITCH Figure 9. External Current-Boost Connections for IC Peak Greater Than 1.
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MC33063A-Q1 www.ti.com ................................................................................................................................................ SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 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.
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MC33063A-Q1 SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008 ................................................................................................................................................ www.ti.com 8 1 1 8 7 2 7 VOUT 2 VOUT VIN 6 VIN a) EXTERNAL npn SWITCH 6 b) EXTERNAL pnp SATURATED SWITCH Figure 11. External Current-Boost Connections for IC Peak Greater Than 1.
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MC33063A-Q1 www.ti.com ................................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 PACKAGING INFORMATION Orderable Device Status (1) MC33063AQDRQ1 ACTIVE Package Type Package Pins Package Drawing Qty SOIC D 8 2500 Eco Plan Lead/Ball Finish (2) Green (RoHS & no Sb/Br) MSL Peak Temp Op Temp (°C) Top-Side Markings (3) CU NIPDAU Level-1-260C-UNLIM (4) -40 to 125 33063AQ (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE OPTION ADDENDUM www.ti.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.