Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsPMICsPMIC - DC/DC voltage regulator Converter, Boost DIP 8

This is information on a product in full production.

April 2013 DocID5257 Rev 11 1/23

MC34063AB, MC34063AC,

MC34063EB, MC34063EC

DC-DC converter control circuits

Datasheet - production data

Features

 Output switch current in excess of 1.5 A

 2 % reference accuracy

 Low quiescent current: 2.5 mA (typ.)

 Operating from 3 V to 40 V

 Frequency operation to 100 kHz

 Active current limiting

Description

The MC34063A/E series is a monolithic control

circuit which delivers the main functions for DC-

DC voltage converting.

The device contains an internal temperature

compensated reference, comparator, duty cycle

controlled oscillator with an active current limit

circuit, driver and high current output switch.

Output voltage is adjustable through two external

resistors with a 2% reference accuracy.

Employing a minimum number of external

components, the MC34063A/E device series is

designed for step-down, step-up and voltage-

inverting applications.

SO-8

DIP-8

Table 1. Device summary

Order codes

DIP-8 SO-8

MC34063ABN MC34063ABD-TR

MC34063ACN MC34063ACD-TR

MC34063EBN MC34063EBD-TR

MC34063ECN MC34063ECD-TR

www.st.com

Summary of content (23 pages)

PAGE 1
MC34063AB, MC34063AC, MC34063EB, MC34063EC DC-DC converter control circuits Datasheet - production data Description The MC34063A/E series is a monolithic control circuit which delivers the main functions for DCDC voltage converting. DIP-8 The device contains an internal temperature compensated reference, comparator, duty cycle controlled oscillator with an active current limit circuit, driver and high current output switch.
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Contents MC34063AB, MC34063AC, MC34063EB, MC34063EC Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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MC34063AB, MC34063AC, MC34063EB, MC34063EC 1 Diagram Diagram Figure 1.
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Pin configuration 2 MC34063AB, MC34063AC, MC34063EB, MC34063EC Pin configuration Figure 2. Pin connections Table 2.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC 3 Maximum ratings Maximum ratings Table 3. Absolute maximum ratings Symbol VCC Power supply voltage VIR Comparator input voltage range Value Unit 50 V -0.3 to 40 V VSWC Switch collector voltage 40 V VSWE Switch emitter voltage (VSWC = 40V) 40 V VCE Switch collector to emitter voltage 40 V VDC Driver collector voltage 40 V IDC Driver collector current 100 mA ISW Switch current 1.
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Electrical characteristics 4 MC34063AB, MC34063AC, MC34063EB, MC34063EC Electrical characteristics Refer to the test circuits, VCC = 5 V, TA = TLOW to THIGH, unless otherwise specified. (a) Table 5. Oscillator Symbol Parameter Test conditions Min. Typ. Max.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Electrical characteristics Table 8. Total device Symbol ICC VSTART-UP Parameter Supply current Start-up voltage (1) Test conditions Typ. Max. for MC34063A 2.5 4 for MC34063E 1.5 4 for MC34063A TA = 25°C CT = 1 µF, PIN 5 = 0 for MC34063E 2.1 VCC = 5 to 40 V CT = 1 nF PIN 7 = VCC VPIN5 >VTH PIN 2 = GND Remaining pins open Min. Unit mA V 1.5 1. Start-up voltage is the minimum power supply voltage at which the internal oscillator begins to work.
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Typical performance characteristics 5 MC34063AB, MC34063AC, MC34063EB, MC34063EC Typical performance characteristics Figure 3. Emitter follower configuration output saturation voltage vs. emitter current Figure 4. Output switch ON-OFF time vs. oscillator timing capacitor Figure 5. Common emitter configuration output switch saturation voltage vs. collector current Figure 6. Darlington configuration collector emitter saturation voltage (VCEsat) vs.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Typical performance characteristics Figure 7. Power collector emitter saturation voltage (VCEsat) vs. temperature Figure 8. Current limit sense voltage (VIPK) vs. temperature Figure 9. Reference voltage vs. temperature Figure 10. Bias current vs. temperature Figure 11. Supply current vs. temperature Figure 12. Supply current vs.
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Typical application circuit 6 MC34063AB, MC34063AC, MC34063EB, MC34063EC Typical application circuit Figure 13. Step-up converter Figure 14. Printed evaluation board PIN 1 = VOUT PIN 2 = GND PIN 3 = GND PIN 4 = VIN Table 9. Test condition (VOUT = 28 V) Test Conditions Value (Typ.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Typical application circuit Figure 15. Step-down converter Figure 16. Printed evaluation board PIN 1 = VOUT PIN 2 = GND PIN 3 = GND PIN 4 = VIN Table 10. Test condition (VOUT = 5 V) Test Conditions Value (typ.) Unit Line regulation VIN = 15 to 25 V, IO = 500 mA 5 mV Load regulation VIN = 25 V, IO = 50 to 500 mA 30 mV Output ripple VIN = 25 V, IO = 500 mA 100 mV Efficiency VIN = 25 V, IO = 500 mA 80 % ISC VIN = 25 V, RLOAD = 0.1  1.
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Typical application circuit MC34063AB, MC34063AC, MC34063EB, MC34063EC Figure 17. Voltage inverting converter Figure 18. Printed evaluation board PIN 1 = VOUT PIN 2 = GND PIN 3 = GND PIN 4 = VIN Table 11. Test condition (VOUT = 12 V) Test Conditions Value (typ.) Unit Line regulation VIN = 4.5 to 6 V, IO = 100 mA 15 mV Load regulation VIN = 5 V, IO = 10 to 100 mA 20 mV Output ripple VIN = 5 V, IO = 100 mA 230 mV Efficiency VIN = 5 V, IO = 100 mA 58 % ISC VIN = 5 V, RLOAD = 0.1  0.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Typical application circuit Table 12.
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Typical application circuit MC34063AB, MC34063AC, MC34063EB, MC34063EC Figure 19. Step-up with external NPN switch Figure 20.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Typical application circuit Figure 21. Step-down with external PNP switch Figure 22.
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Typical application circuit MC34063AB, MC34063AC, MC34063EB, MC34063EC Figure 23. Voltage inverting with external PNP saturated switch Figure 24.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Typical application circuit Figure 25.
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Package mechanical data 7 MC34063AB, MC34063AC, MC34063EB, MC34063EC Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Package mechanical data Plastic DIP-8 mechanical data mm. inch. Dim. Min. A Typ. Max. Min. 3.3 Typ. Max. 0.130 a1 0.7 B 1.39 1.65 0.055 0.065 B1 0.91 1.04 0.036 0.041 b b1 0.028 0.5 0.38 0.020 0.5 D 0.015 0.020 9.8 0.386 E 8.8 0.346 e 2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 F 7.1 0.280 I 4.8 0.189 L Z 3.3 0.44 0.130 1.6 0.017 0.
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Package mechanical data MC34063AB, MC34063AC, MC34063EB, MC34063EC SO-8 mechanical data Dim. mm. Min. Typ. inch. Max. Min. Typ. Max. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ddd 8° (max.) 0.1 0.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Package mechanical data Tape & reel SO-8 mechanical data mm. inch. Dim. Min. A Typ. Max. Min. 330 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Typ. 0.504 22.4 0.519 0.882 Ao 8.1 8.5 0.319 0.335 Bo 5.5 5.9 0.216 0.232 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.
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Revision history 8 MC34063AB, MC34063AC, MC34063EB, MC34063EC Revision history Table 13. Document revision history 22/23 Date Revision Changes 20-Nov-2007 10 Added Table 1. 24-Apr-2013 11 Removed note Table 1 on page 1.
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MC34063AB, MC34063AC, MC34063EB, MC34063EC Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.