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AAT1231 データシート(PDF) 4 Page - Advanced Analogic Technologies |
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AAT1231 データシート(HTML) 4 Page - Advanced Analogic Technologies |
4 / 27 page Electrical Characteristics1 TA = -40°C to +85°C unless otherwise noted. Typical values are at 25°C, VIN = 3.6V. Symbol Description Conditions Min Typ Max Units Power Supply PVIN, VIN Input Voltage Range 2.7 5.5 V VOUT(MAX) Maximum Output Voltage 24 V IQ Operating Current SEL = GND, FB = 0.1V 40 70 µA ISHDN Shutdown Current EN/SET = GND 1.0 µA IOUT Maximum Continuous Output 2.7V < VIN < 5.5V, VOUT = 24V 50 mA Current2 ΔVLINEREG(FB)/ Line Regulation VIN = 2.7V to 5.5V, VFB = 0.6V 0.7 %/V ΔVIN RDS(ON) L Low Side Switch On Resistance 80 m Ω RDS(ON) IN Input Disconnect Switch 180 m Ω On Resistance TSS Soft-Start Time From Enable to Output Regulation; 300 µs VFB = 300mV VOVP Over-Voltage Protection Threshold VOUT Rising 1.1 1.2 1.3 V Over-Voltage Hysteresis VOUT Falling 100 mV ILIMIT N-Channel Current Limit 2.5 A TSD TJ Thermal Shutdown Threshold 140 °C THYS TJ Thermal Shutdown Hysteresis 15 °C SEL, EN/SET VSEL(L) SEL Threshold Low 0.4 V VSEL(H) SEL Threshold High 1.4 V VEN/SET(L) Enable Threshold Low 0.4 V VEN/SET(H) Enable Threshold High 1.4 V TEN/SET (LO) EN/SET Low Time VEN/SET < 0.6V 0.3 75 µs TEN/SET(HI) EN/SET High Time VEN/SET > 1.4V 75 µs TOFF EN/SET Off Timeout VEN/SET < 0.6V 500 µs TLAT EN/SET Latch Timeout VEN/SET > 1.4V 500 µs IEN/SET EN/SET Input Leakage VEN/SET = 5V VIN = 5V -1 1 µA AAT1231 VIN = 2.7V to 5.5V, SEL = GND, 0.09 0.1 0.11 FB FB Pin Regulation EN/SET = HIGH V VIN = 2.7V to 5.5V, SEL = HIGH, 0.564 0.6 0.636 EN/SET = DATA16 AAT1231-1 VIN = 2.7V to 5.5V, SEL = GND, 0.09 0.1 0.11 FB FB Pin Regulation EN/SET = DATA16 V VIN = 2.7V to 5.5V, SEL = HIGH, 0.564 0.6 0.636 EN/SET = HIGH AAT1231/1231-1 Step-Up DC/DC Converters for White LED Backlight Applications 4 1231.2007.01.1.2 1. Specification over the -40°C to +85°C operating temperature range is assured by design, characterization, and correlation with statis- tical process controls. 2. Maximum continuous output current increases with reduced output voltage, but may vary depending on operating efficiency and ther- mal limitations. |
同様の部品番号 - AAT1231 |
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同様の説明 - AAT1231 |
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