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MAX15022 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX15022 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 28 page Dual, 4A/2A, 4MHz, Step-Down DC-DC Regulator with Dual LDO Controllers _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VAVIN = VPVIN_ = VDVDD_ = 3.3V, VPGND_ = VSGND = 0V, RT = 25kΩ, and TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LDO CONTROLLERS FB3, FB4 Input Bias Current -250 +250 nA FB3, FB4 Voltage Set-point 5mA sink current, VB_ = 0.5V to 5.5V 0.585 0.600 0.615 V FB3, FB4 to B3, B4 Transconductance 2.5mA to 10mA sink current, VB_ = 0.5V to 5.5V 0.56 1.20 2.30 S B3, B4 Driver Sink Current VFB3, VFB4 = 0V, VB_ = 0.5V to 5.5V 20 mA LDO Soft-Start Duration 512 Clock Cycles LDO Reference Voltage Steps 64 Steps POWER MOSFETS Regulator 1 p-Channel MOSFET RDSON VDVDD1 = 5V 50 90 m Ω Regulator 1 n-Channel MOSFET RDSON VDVDD1 = 5V 30 50 m Ω Regulator 1 Gate Charge VDVDD1 = 5V 8 nC Maximum LX1 RMS Current 4A Regulator 2 p-Channel MOSFET RDSON VDVDD2 = 5V 100 180 m Ω Regulator 2 n-Channel MOSFET RDSON VDVDD2 = 5V 60 100 m Ω Regulator 2 Gate Charge VDVDD2 = 5V 4 nC Maximum LX2 RMS Current 2A PWM CURRENT LIMIT AND HICCUP MODE VPVIN = VAVIN = 3.3V 4.5 4.9 5.3 Regulator 1 Peak Current Limit VPVIN = VAVIN = 2.5V 3.40 3.65 3.95 A VPVIN = VAVIN = 3.3V 4.0 5.0 5.65 Regulator 1 Valley Current Limit VPVIN = VAVIN = 2.5V 3.0 3.7 4.25 A VPVIN = VAVIN = 3.3V 2.25 2.45 2.65 Regulator 2 Peak Current Limit VPVIN = VAVIN = 2.5V 1.70 1.85 1.98 A VPVIN = VAVIN = 3.3V 2.0 2.5 2.83 Regulator 2 Valley Current Limit VPVIN = VAVIN = 2.5V 1.5 1.85 2.13 A Number of Cumulative Current- Limit Events to Hiccup NCL 4 Clock Cycles Number of Consecutive Noncurrent Limit Cycles to Clear NCL NCLR 3 Clock Cycles Hiccup Timeout NHT 8192 Clock Cycles |
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Similar Description - MAX15022 |
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