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FAN5056MV85 数据表(PDF) 4 Page - Fairchild Semiconductor |
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FAN5056MV85 数据表(HTML) 4 Page - Fairchild Semiconductor |
4 / 15 page FAN5056MV85 PRODUCT SPECIFICATION 4 REV. 1.0.6 6/26/01 Notes: 1. Steady State Voltage Regulation includes Initial Voltage Setpoint, Droop, Output Ripple and Output Temperature Drift and is measured at the converter’s VFB sense point. 2. As measured at the converter’s VFB sense point. For motherboard applications, the PCB layout should exhibit no more than 0.5m Ω trace resistance between the converter’s output capacitors and the CPU. Remote sensing should be used for optimal performance. 3. Using the VFB pin for remote sensing of the converter’s output at the load, and the appropriate droop, the converter will be in compliance with Intel’s VRM 8.5 specification. If Intel specifications on maximum plane resistance from the converter’s output capacitors to the CPU are met, the specifications at the capacitors will also be met. 4. PWRGD will be high only if BOTH the linears and the switcher conditions are met. PWRGD will be low if EITHER condition is met. Total Output Variation, Transient2 ILOAD = 0.8A to Imax, VVID = 1.425V • 1.335 1.515 V Short Circuit Detect Current • 45 50 60 µA Efficiency ILOAD = 18A, VVID = 1.425V 83 % Output Driver Rise & Fall Time See Figure 3 50 nsec Output Driver Deadtime See Figure 3 50 nsec Duty Cycle 0 100 % 5V UVLO • 3.76 4 4.24 V 12V UVLO • 7.65 8.5 9.35 V Adjustable Linear Regulator Output Voltage ILOAD ≤ 2A • 1.188 1.212 1.236 V Over Current Trip Level 80 %VO VCLK Linear Regulator Output Voltage ILOAD ≤ 2A • 2.375 2.5 2.625 V Over Current Trip Level 80 %VO VAGP Linear Regulator Output Voltage ILOAD ≤ 2A, TYPEDET = 0V • 1.425 1.5 1.575 V Output Voltage ILOAD ≤ 2A, TYPEDET = OPEN • 3.135 3.3 3.465 V Over Current Trip Level 80 %VO Common Functions Oscillator Frequency • 255 300 345 kHz PWRGD Threshold4 Switcher Logic HIGH [VVID + 85mV] Logic LOW [VVID–155mV] • • 88 80 112 120 % PWRGD Delay Switcher HIGH → LOW 6 µsec PWRGD Hysteresis Switcher 25 mV PWRGD Threshold4 Linear Regulators All Outputs • 80 %Vout Electrical Specifications (Continued) (VCCA = 5V, VCCP = 12V, VOUT = 1.425V, and TA = +25°C using circuits in Figure 1, unless otherwise noted.) The • denotes specifications which apply over the full operating temperature range. Parameter Conditions Min. Typ. Max. Units |
类似零件编号 - FAN5056MV85 |
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类似说明 - FAN5056MV85 |
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