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LT3758 Datasheet(PDF) 1 Page - Analog Devices |
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LT3758 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 28 page  LT8392 1 Rev. 0 For more information www.analog.com Document Feedback TYPICAL APPLICATION FEATURES DESCRIPTION 60V Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum The LT®8392 is a synchronous 4-switch buck-boost DC/ DC controller that regulates output voltage, input or out- put current from input voltage above, below, or equal to the output voltage. The proprietary peak-buck peak-boost current mode control scheme allows adjustable and syn- chronizable 150kHz to 650kHz fixed frequency operation, or internal ±15% triangle spread spectrum operation for low EMI. With 3V to 60V input voltage range, 1V to 60V output voltage capability, and seamless low noise tran- sitions between operation regions, the LT8392 is ideal for voltage regulator, battery and super-capacitor charger applications in automotive, industrial, telecom, and even battery-powered systems. The LT8392 provides input or output current monitor and power good flag. Fault protection function detects output short-circuit condition, during which the LT8392 retries, latches off, or keeps running. 98% Efficient 96W (12V 8A) Buck-Boost Voltage Regulator APPLICATIONS n 4-Switch Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT n Up to 98% Efficiency n Proprietary Peak-Buck Peak-Boost Current Mode n Wide VIN Range: 3V (Need EXTVCC ≥ 4.5V) to 60V n ±1.5% Output Voltage Accuracy: 1V ≤ VOUT ≤ 60V n ±4% Input or Output Current Accuracy with Monitor n Spread Spectrum Frequency Modulation for Low EMI n Integrated Bootstrap Diodes n Adjustable and Synchronizable: 150kHz to 650kHz n VOUT Disconnected from VIN During Shutdown n Available in 28-Lead TSSOP with Exposed Pad and 28-Lead QFN (4mm × 5mm) n Automotive, Industrial, Telecom Systems n High Frequency Battery-Powered System All registered trademarks and trademarks are the property of their respective owners. 100k 0.1µF 10µF ×4 1m 0.1µF 3µH 120µF ×4 130k 4.7µF 226k 27nF 12k 110k 10k 5m 22µF ×4 0.1µF 1µF 1µF 1µF 470µF 470µF EN/UVLO INTVCC PGOOD BG2 BST2 TG2 SYNC/SPRD FB VOUT EXTVCC ISP ISN VIN 6V TO 18V CONTINUOUS 3V TO 36V TRANSIENT 200kHz VOUT 12V 8A LSP LSN SW1 SW2 BST1 TG1 CTRL TRIM VREF BG1 VIN LT8392 ISMON GND TEST SS VC RT 100k 8392 TA01a 0.47µF 10k 10k Efficiency vs VIN IOUT = 8A INPUT VOLTAGE (V) 0 4 8 12 16 20 24 28 32 36 40 86 88 90 92 94 96 98 100 8392 TA01b |
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