Datasheet MAX856, MAX857, MAX858, MAX859 (Maxim) - 4

3.3V/5V or Adjustable-Output, Step-Up DC-DC Converters _____________________________Typical Operating Characteristics (continued)
(Circuits of Figure 2, TA = +25°C, unless otherwise noted.)
MAX856/MAX857 MAX858/MAX859 NO LOAD BATTERY CURRENT NO LOAD BATTERY CURRENT REFERENCE VOLTAGE vs. CURRENT vs. INPUT VOLTAGE vs. INPUT VOLTAGE
10 400 1.6 T 9 MAX856-05 350 A = +85°C MAX856-08 1.4 T MAX856-09 A = +85°C INCLUDES ALL EXTERNAL 8 INCLUDES ALL EXTERNAL µA) 300 COMPONENT LEAKAGES. 1.2 COMPONENT LEAKAGES. 7 CAPACITOR LEAKAGE CAPACITOR LEAKAGE 250 DOMINATES AT T 1.0 A = +85°C. 6 DOMINATES AT TA = +85°C. CAPS ARE SPRAGUE 595 D CAPS ARE SPRAGUE 595D 5 200 0.8 TA = +25°C 4 150 0.6 LOAD REGULATION (mV) 3 100 0.4 TA = +25°C QUIESCENT CURRENT ( REF QUIESCENT CURRENT (mA) V 2 50 TA = -40°C 0.2
MAX856–MAX859
1 TA = -40°C 0 0 0 0 50 100 150 200 250 1.5 2.0 2.5 3.0 3.5 4.0 1.5 2.0 2.5 3.0 3.5 4.0 REFERENCE LOAD CURRENT (µA) INPUT VOLTAGE (V) INPUT VOLTAGE (V)
MAX856/MAX857 MAX858/MAX859 QUIESCENT CURRENT MINIMUM START-UP INPUT VOLTAGE MINIMUM START-UP INPUT VOLTAGE vs. INPUT VOLTAGE vs. LOAD CURRENT vs. LOAD CURRENT
1.6 1.15 1.4 SEE NOTE 2 VOUT = 5V MAX856-06 1.4 MAX856-10 IN THE ELECTRICAL 1.10 MAX856-07 1.3 CHARACTERISTICS 1.2 1.05 1.2 1.00 1.0 VOUT = 3.3V VOUT = 5V 0.95 0.8 1.1 0.6 0.90 1.0 0.4 0.85 QUIESCENT CURRENT (mA) START-UP INPUT VOLTAGE (V) START-UP INPUT VOLTAGE (V) 0.9 0.2 T 0.80 A = +85°C T 0 A = -40°C 0.75 0.8 1.5 2.0 2.5 3.0 3.5 4.0 0.1 1 10 100 0.1 1 10 100 LOAD CURRENT (mA) LOAD CURRENT (mA) INPUT VOLTAGE (V)
MAX856/MAX857 MAX858/MAX859 SHUTDOWN CURRENT MAXIMUM OUTPUT CURRENT MAXIMUM OUTPUT CURRENT vs. INPUT VOLTAGE vs. INPUT VOLTAGE vs. INPUT VOLTAGE
1.0 400 100 0.9 90 MAX856-11 MAX856-12 350 MAX856-13 0.8 80 µA) 300 0.7 70 VOUT = 3.3V 0.6 250 60 VOUT = 5.0V VOUT = 3.3V 0.5 TA = +85°C 50 200 0.4 TA = +25°C V 40 150 OUT = 5.0V 0.3 LOAD CURRENT (mA) 30 LOAD CURRENT (mA) SHUTDOWN CURRENT ( 100 0.2 20 0.1 TA = -40°C 50 10 0 0 0 1.5 2.0 2.5 3.0 3.5 4.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V)
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