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SMB206A Folha de dados(PDF) 9 Page - Summit Microelectronics, Inc. |
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SMB206A Folha de dados(HTML) 9 Page - Summit Microelectronics, Inc. |
9 / 27 page SMB206A/7A/8A Preliminary SUMMIT Microelectronics, Inc. 2147 2.4 2/23/2012 9 PVIN = +12V, VDD = +5V, TA = TJ = -40°C to +85°C unless otherwise noted. Typical values are at +25°C, Note 1,2 Symbol Parameter Conditions Min Typ Max Unit Step-down regulators (CH0,1) VOUT Coarse Output Voltage Programmable 0.8V-1.8V (100mV steps) and 2.3/2.5/3.0/3.3/5.0V 0.1A to Full DC Load -2.5 +2.5 % DVOUTF Fine Output Voltage Offset Programmable +1.14% to 7.95% relative to coarse output voltage (3-bits) 0 +7.95 % SRVOUT Dynamic Output Voltage Slew Rate (Note 3) VFB slew from completion of I 2C write (0.8V-1.8V only) 103 128 153 us/step ∆V LINE Line regulation ∆V OUT/∆VIN (10V < VIN < 14V) 1 3 mV/V IFB Feedback pin current 1 uA FSW PWM Switching frequency Programmable 500/1000kHz -15 15 % Θ Phase interleave CH0 vs. CH1 180 deg RDSH High side FET switch resistance SMB206A/7A/8A 250 400 m Ω RDSL Low side FET switch resistance 10 Ω ILIM Switch Peak Current Limit SMB207A (CH0/CH1) 1.5/1.5 2/2 A SMB208A (CH0/CH1) 3/3 4/4 A SMB206A (CH0/CH1) 4.5/4.5 6/6 A THO Startup holdoff time 10 ms TSS Softstart/stop slew Programmable 0.5/1.0ms (1 bit) -20 +20 % TSEQ Sequence delay Programmable 1.5-50ms (2 bits) -20 +20 % VPG0,1 Output PGOOD/RESET threshold VOUT0,1 rising Relative to nominal coarse setting 85 90 95 % TBPG PGOOD/RESET blanking time After last step of VFB during dynamic output voltage (Note 3) 192 us TUVPG Output PGOOD/RESET glitch filter VOUT falling 32 us TRST RESET Output Delay VOUT rising 100 125 200 ms VUV Output undervoltage threshold (short circuit) % of VOUT, VOUT falling 52.5 62.5 72.5 % VHYST-UV UV threshold hysteresis (short circuit) % of VOUT, VOUT rising 3 % Logic Inputs/Outputs (EN0/1, SDA/SCL, PGOOD/RESET) VIH Input high voltage 1.4 V VIL Input low 0.6 V VOL Open drain outputs ISINK = 3mA 0.3 V Note 1: Parametric tolerances are only guaranteed for factory-programmed settings. Changing configuration settings from that reflected in the customer specific CSIR code may result in inaccuracies exceeding those specified above. Note 2: MIN/MAX limits guaranteed by test, characterization or design. Note 3: “Coarse” volatile output voltage writes above 1.8V setting requires a channel disable/re-enable to take effect. ELECTRICAL OPERATING CHARACTERISTICS (CONTINUED) |
Nº de peça semelhante - SMB206A |
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Descrição semelhante - SMB206A |
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