mc33567 ON Semiconductor, mc33567 Datasheet
mc33567
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mc33567 Summary of contents
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... MC33567 Dual Linear Controller for High Current Voltage Regulation The MC33567 Dual Linear Power Supply Controller is designed to facilitate power management for motherboard applications where reliable regulation of high current supply planes is required. It provides the Drive, Sense and Control signals to interface two external, N−channel MOSFETs for regulating two different supply planes ...
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... SHDN2 TTL high level turns on regulation for gate 2. (Internal pull− SENSE2 Sense 2 line. Sense load voltage and provides feedback to regulator. Gate 2 drive. Saturates external FET in bypass mode (MC33567−1 only). 7 DRV2 Is internally clamped to ground in power down mode Supply voltage for operation and gate drive output − typically 12 V. ...
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... Drive Output Off Time in hiccup mode (V sense = 0 V) OUTPUT REGULATION Regulator Output Voltage ( 3 5 1.3 A) MC33567−1 Output 1 Output 2 MC33567−2 Output 1 Output 2 MC33567−3 Output 1 Output 2 Output Voltage Regulation ( 5 1.3 A) MC33567 Symbol Min − − UVLO 7.0 UVLO Vhys 0.2 V drv − ...
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... MOSFETs. Each controller operates independently and regulates the output voltage to a predetermined level (1.2 V, 1.515 V 1.818 V, 2 2.525 V). In addition, regulator 2 of the MC33567−1 incorporates bypass mode on which the external FET is fully enhanced. Shutdown: The regulated outputs of the MC33567 can be disabled with the use of the SHDN pin ...
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... Driver pole frequency Input and reverse transfer capacitance when device is off using Regulator output resistance (50 W for the MC33567 Secondary pole for open loop Error amplifier gain bandwidth Error amp second pole (set not specified) ...
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... ON Semiconductor application note AND8037/D. MC33567 Adjustable Output Voltage: The MC33567 will regulate V out to its preset voltage level, referenced at the sense pin. However, other V out levels can be obtained scaling the sense voltage. This is done using a + 10.87 MHz resistive network between the load and the sense pin as shown in Figure 6 ...
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... Q1, Q2 MC33567 DRV1 DRV2 SENSE1 7 2 MC33567 C3 SENSE2 SHDN1 3 6 SHDN2 4 5 Figure 7. Application Block Diagram Part/Description 100 F Electrolytic Capacitor MC33567 MTD3055VL http://onsemi.com 7 Q2 LOAD2 SHDN2 C4 SHDN1 100 F LOAD1 Vendor Notes Various ON Semiconductor ON Semiconductor N−Channel MOSFET AGP Card ...
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... MC33567 TYPICAL CHARACTERISTICS 200 PHASE MARGIN PHASE = kHz 100 GAIN LOAD = 200 mF R ESR = 50 mW −100 10 100 1,000 10,000 f, FREQUENCY (Hz) Figure 8. Gain−Phase Plot for Output Capacitor with 50 mW ESR 1.840 Gate Drive 2 Open 1.835 1.830 1.3 A 1.825 1 ...
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... Figure 14. Regulator 1 (Suffix 3) Output Voltage vs. Ambient Temperature 8.0 7.6 Regulator 1 7.2 Regulator 2 6.8 6.4 6.0 5.6 − TEMPERATURE ( C) Figure 16. Gate Drive Sink Current vs. Ambient Temperature MC33567 1.9 1.7 1.5 1.3 1.1 0.9 0 − Figure 13. Short Circuit/Undervoltage Detect Threshold (Suffix 3) vs. Ambient Temperature 1.200 Gate Drive 2 Open 1.215 1.210 1 ...
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... 10.65 10.60 Series 1 10.55 10.50 10.45 10.40 10.35 10.30 − TEMPERATURE ( C) Figure 20. Regulator 2 Maximum Gate Voltage vs. Ambient Temperature 1.06 1.04 1.02 1.00 0.98 0.96 0.94 0.92 0.90 −10 Figure 22. Drive Output On Time in Hiccup Mode MC33567 520 510 500 490 480 470 460 450 440 − Figure 19. UVLO Hysteresis Voltage 50.0 49.5 49.0 48.5 48.0 47.5 47.0 46.5 46.0 45.5 45 ...
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... Device MC33567D−1 MC33567D−1R2 MC33567D−1R2G MC33567D−2 MC33567D−2R2 MC33567D−3 MC33567D−3R2 †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *While on bypass mode. MC33567 ...
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... D 0.33 0.51 0.013 0.020 G 1.27 BSC 0.050 BSC H 0.10 0.25 0.004 0.010 J 0.19 0.25 0.007 0.010 J K 0.40 1.27 0.016 0.050 0.25 0.50 0.010 0.020 S 5.80 6.20 0.228 0.244 mm inches ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. MC33567 ...