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LMZ23608TZE Datasheet(PDF) 5 Page - Texas Instruments |
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LMZ23608TZE Datasheet(HTML) 5 Page - Texas Instruments |
5 / 36 page LMZ23608 www.ti.com SNVS708G – MARCH 2011 – REVISED AUGUST 2015 6.5 Electrical Characteristics Limits are for TJ = 25°C unless otherwise specified. Minimum and Maximum limits are ensured through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: VIN = 12V, VOUT = 3.3V PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT SYSTEM PARAMETERS ENABLE CONTROL 1.274 VEN EN threshold VEN rising V over the junction temperature (TJ) range 1.096 1.452 of –40°C to +125°C IEN-HYS EN hysteresis source current VEN > 1.274 V 13 µA SOFT-START 50 ISS SS source current VSS = 0 V µA over the junction temperature (TJ) range 40 60 of –40°C to +125°C tSS Internal soft-start interval 1.6 ms CURRENT LIMIT ICL Current limit threshold DC average 10.5 A INTERNAL SWITCHING OSCILLATOR Free-running oscillator fosc Sync input connected to ground 314 359 404 kHz frequency fsync Synchronization range Vsync = 3.3 Vp-p 314 600 kHz Synchronization logic zero over the junction temperature (TJ) range VIL-sync Relative to AGND 0.4 V amplitude of –40°C to +125°C Synchronization logic one over the junction temperature (TJ) range VIH-sync Relative to AGND 1.8 V amplitude of –40°C to +125°C Synchronization duty cycle SyncDC 15% 50% 85% range REGULATION AND OVERVOLTAGE COMPARATOR 0.795 VSS >+ 0.8 V VFB In-regulation feedback voltage V over the junction temperature (TJ) range IO = 8 A 0.775 0.815 of –40°C to +125°C Feedback over-voltage VFB-OV 0.86 V protection threshold IFB Feedback input bias current 5 nA Non-switching quiescent IQ SYNC = 3 V 3 mA current ISD Shutdown quiescent current VEN = 0 V 32 μA Dmax Maximum duty factor 85% THERMAL CHARACTERISTICS TSD Thermal shutdown Rising 165 °C TSD-HYST Thermal shutdown hysteresis Falling 15 °C PERFORMANCE PARAMETERS(3) ΔVO Output voltage ripple BW at 20 MHz 24 mVPP ΔVO/ΔVIN Line regulation VIN = 12V to 20 V, IOUT= 8 A ±0.2% ΔVO/ΔIOUT Load regulation VIN = 12 V, IOUT= 0.001 A to 8 A 1 mV/A η Peak efficiency VIN = 12 V, VOUT = 3.3 V, IOUT = 5 A 89.5% η Full load efficiency VIN = 12 V, VOUT = 3.3 V, IOUT = 8 A 88.5% (1) Minimum and Maximum limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL). (2) Typical numbers are at 25°C and represent the most likely parametric norm. (3) Refer to BOM in Table 1. Copyright © 2011–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMZ23608 |
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