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ISL68227IRAZ Datasheet(PDF) 13 Page - Renesas Technology Corp |
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ISL68227IRAZ Datasheet(HTML) 13 Page - Renesas Technology Corp |
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13 / 100 page  ISL68227 2. Specifications FN9333 Rev.1.00 Page 13 of 99 Oct.1.20 2.4 Electrical Specifications Recommended operating conditions, VCC = 3.3V, unless otherwise specified. Boldface limits apply across the operating ambient temperature range -40°C to +85°C. Parameter Test Conditions Min (Note 7)Typ Max (Note 7)Unit VCC Supply Current Nominal Supply Current VCC = 3.3VDC; ENx = VIH, all rails and phases operating, fSW = 600kHz 61 mA Shutdown Supply Current VCC = 3.3VDC; EN0 = 0V, no switching 8 mA VCCS LDO Supply Output Voltage 1.22 V Maximum Current Capability Excluding internal load 20 mA Power-On Reset (POR) VCC Brownout Threshold 2.95 V VCCS Rising POR Threshold 1V VCCS Falling POR Threshold 0.9 V Enable Input High Level 2.0 V Enable Input Low Level 0.8 V Configurations Stored in Memory Number of Configuration Write Slots 28 Number of Unique Configurations Stored 16 POR to Initialization POR to Initialization Complete Time 15 ms Output Voltage Characteristics System Accuracy Note 6, closed loop VOUT set-point = 1.00V to 3.05V -0.5 0.5 % Note 6, closed loop VOUT set-point = 0.8V to 0.999V -5 5 mV Note 6, closed loop VOUT set-point = 0.25V to 0.799V -8 +8 mV Voltage Sense Amplifier Open Sense Current Only at VSEN open detection during initialization period 220 µA Input Impedance (VSEN - RGND) 140 kΩ Maximum Common-Mode Input VCC - 0.2 V Differential Input Range (VSEN - RGND) 3.05 V Output Current-Sense and Overcurrent Protection Current Sense Accuracy SPS configuration -1 1 % Average Overcurrent Threshold Resolution 0.1 A Cycle-by-Cycle Current Limiting Threshold Resolution 0.4 A Digital Droop Droop Resolution 0.01 mV/A Oscillators Accuracy of Switching Frequency Setting ±2 % Switching Frequency Range 0.2 2.0 MHz |
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