Rainbow Electronics MAX867 - Manual (Page 5)

MAX866/MAX867
3.3V/5V or Adjustable-Output,
Single-Cell DC-DC Converters
_______________________________________________________________________________________ 5
A: 5.0V OUTPUT VOLTAGE, AC COUPLED 20mV/div
B: OUTPUT CURRENT (0mA AND 10mA) 5mV/div
(TEKTRONIX P6042 CURRENT PROBE)
I
LOAD = 5mA, C OUT = 47 µ F, V IN = 1.25V
MAX866 LOAD-TRANSIENT RESPONSE
(5V MODE)
1ms/div
A
B
A: 3.3V OUTPUT VOLTAGE, 2V/div
B: SHDN INPUT VOLTAGE (0V AND 5V) 2V/div
I
LOAD = 10mA
MAX866 SHUTDOWN RESPONSE
(3.3V MODE)
10ms/div
A
B
A: 5.0V OUTPUT VOLTAGE, 2V/div
B: SHDN INPUT VOLTAGE (0V AND 5V) 5V/div
I
LOAD = 10mA
MAX866 SHUTDOWN RESPONSE
(5V MODE)
10ms/div
A
B
____________________________Typical Operating Characteristics (continued)
(Circuits of Figure 2, T A = +25°C, unless otherwise noted.)
1.250
-60
MAX867 LBI AND FB THRESHOLD
vs. TEMPERATURE
1.260
MAX866/67-24
TEMPERATURE (°C)
LBI, FB VOLTAGE (V)
0 60 -20 -40 20 80 40 100
1.240
LBI
VFB (MAX867)
0
-60
MAX866 OUTPUT VOLTAGE ERROR
vs. TEMPERATURE
0.5
MAX866/67-25
TEMPERATURE (°C)
OUTPUT VOLTAGE ERROR (%)
0 60 -20 -40 20 80 40 100
-0.5
5V MODE
I LOAD = OA
3.3V MODE
-60
START-UP VOLTAGE
vs. TEMPERATURE
1.0
0.9
0.8
0.7
0.6
MAX866/67-26
TEMPERATURE (°C)
START-UP VOLTAGE (V)
0 60 -20 -40 20 80 40 100
0.5
I LOAD = 0A
A: 3.3V OUTPUT VOLTAGE, AC COUPLED 20mV/div
B: OUTPUT CURRENT (0mA AND 10mA) 5mV/div
(TEKTRONIX P6042 CURRENT PROBE)
I
LOAD = 5mA, C OUT = 47 µ F, V IN = 1.25V
MAX866 LOAD-TRANSIENT RESPONSE
(3.3V MODE)
1ms/div
A
B