LTM4668A ELECTRICAL CHARACTERISTICSThe l denotes the specifications which apply over the specified internaloperating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, per the typical application. SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VPGOOD PGOOD Trip Level VFB With Respect to Set Output VFB Ramping Negative –11 –7.5 % VFB Ramping Positive 7.5 11 % RPGOOD PGOOD Resistance 275 Ω VINTVCC Internal VCC Voltage VIN = 6V to 17V 4.7 5 5.3 V UVLO Undervoltage Lockout VIN Ramping Up 2.3 2.5 2.7 V UVLO(HYS) UVLO Hysteresis 250 mV fOSC Oscillator Frequency 2.25 MHz SYNC SYNC Capture Range 1500 3000 kHz Note 1: Stresses beyond those listed under Absolute Maximum Ratings with statistical process controls. The LTM4668AI is guaranteed to meet may cause permanent damage to the device. Exposure to any Absolute specifications over the full –40°C to 125°C internal operating temperature Maximum Rating condition for extended periods may affect device range. Note that the maximum ambient temperature consistent with reliability and lifetime. these specifications is determined by specific operating conditions in Note 2: The LTM4668A is tested under pulsed load conditions such conjunction with board layout, the rated package thermal resistance and that T other environmental factors. J ≈ TA. The LTM4668AE is guaranteed to meet performance specifications over the 0°C to 125°C internal operating temperature Note 3: 100% tested at wafer level range. Specifications over the full –40°C to 125°C internal operating Note 4: See output current derating curves for different VIN, VOUT and TA. temperature range are assured by design, characterization and correlation Note 5: Guaranteed by design. Rev. A 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Package Photo Design Resources Related Parts
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