Datasheet MAX866, MAX867 (Maxim) - 3

3.3V/5V or Adjustable-Output, Single-Cell DC-DC Converters MAX866/MAX867 ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 2, VIN = 1.2V, ILOAD = 0mA, TA = +25°C, unless otherwise noted.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
LBI Input Hysteresis 25 mV LBO Output Voltage Low ISINK = 2mA, open-drain output 0.4 V LBO Output Leakage Current LBO = 5V 1 µA –———– – SHDN, 3/5 Input Voltage Low 0.08 x VOUT V ———– – SHDN, 3/5 Input Voltage High 0.32 x VOUT V ———– – –———– – SHDN, 3/5, FB, LBI Input Current LBI = 1.5V, FB = 1.5V, SHDN = 0V or 3V, 3/5 = 0V or 3V ±40 ±100 nA FB Voltage MAX867, output in regulation 1.22 1.25 1.28 V Output Voltage Range MAX867 2.7 6.0 V
Note 2:
Output current specified with circuit of Figure 2 and CoilCraft D01608-334 inductor for test purposes only. More (or less) output current can be supplied with other coil types depending on inductance value and coil resistance. See Typical Operating Characteristics for other coil types. Output voltage and output current are guaranteed over this VIN operating range once the device has started up. Actual VIN start-up voltage depends on load current.
Note 3:
Output voltage specifications over temperature are guaranteed by design to limits that are 6 sigma from either side of the mean.
Note 4:
Current measured into OUT. VOUT is forced to 3.47V to maintain LX off when measuring device current.
__________________________________________Typical Operating Characteristics
(Circuits of Figure 2, TA = +25°C, unless otherwise noted.)
EFFICIENCY vs. LOAD CURRENT (VOUT = 3.3V) EFFICIENCY vs. LOAD CURRENT (VOUT = 3.3V) EFFICIENCY vs. LOAD CURRENT (VOUT = 5.0V)
100 100 100 L = SUMIDA CD73-331 (330µH, 1.5Ω) L = COILCRAFT D01608-334 (330µH, 2.9Ω) L = SUMIDA CD73-331 (330µH, 1.5Ω) 90 90 90 MAX866/67-02 MAX866/667-01 MAX866/667-03 80 80 80 70 70 70 60 60 60 TOP TO BOTTOM: TOP TO BOTTOM: 50 50 50 V V IN = 2.0V IN = 2.0V TOP TO BOTTOM: 40 V 40 VIN = 1.5V 40 V EFFICIENCY (%) IN = 1.5V EFFICIENCY (%) EFFICIENCY (%) IN = 2.0V V VIN = 1.25V V 30 IN = 1.25V 30 30 IN = 1.5V V V IN = 1.0V IN = 1.0V VIN = 1.25V 20 V V IN = 0.75V 20 IN = 0.75V 20 VIN = 1.0V V VIN = 0.75V 10 IN = 0.5V 10 10 VIN = 0.5V 0 0 0 0.01 0.1 1 10 100 1000 0.01 0.1 1 10 100 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA)
NO-LOAD BATTERY CURRENT NO-LOAD BATTERY CURRENT EFFICIENCY vs. LOAD CURRENT (VOUT = 5.0V) vs. BATTERY VOLTAGE (VOUT = 3.3V) vs. BATTERY VOLTAGE (VOUT = 5V)
100 1200 4000 L = COILCRAFT D01608-334 (330µH, 2.9Ω) DECREASING 90 BATTERY 3500 MAX866/67-04 VOLTAGE MAX866/67-06 80 1000 MAX866/67-05 DECREASING µA) µA) 3000 70 BATTERY 800 2500 VOLTAGE 60 50 600 2000 40 TOP TO BOTTOM: EFFICIENCY (%) 1500 V 30 IN = 2.0V 400 INCREASING INCREASING VIN = 1.5V BATTERY CURRENT ( BATTERY BATTERY CURRENT ( 1000 BATTERY 20 VIN = 1.25V VOLTAGE VOLTAGE VIN = 1.0V 200 10 500 VIN = 0.75V 0 0 0 0.01 0.1 1 10 100 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 LOAD CURRENT (mA) BATTERY VOLTAGE (V) BATTERY VOLTAGE (V)
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