Max1759 buck/boost regulating charge pump in µmax, Electrical characteristics – Rainbow Electronics MAX1759 User Manual
Page 3
MAX1759
Buck/Boost Regulating
Charge Pump in µMAX
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
IN
= V
SHDN
= 2V, FB = PGND = GND, C
IN
= 10µF, C
X
= 0.33µF, C
OUT
= 10µF, T
A
= -40°C to +85°C, unless oth-
erwise noted.) (Note 1)
Note 1: Specifications to -40°C are guaranteed by design and are not production tested.
PARAMETER
SYMBOL
MIN
MAX
UNITS
Quiescent Supply Current
I
Q
90
Maximum Output Current
I
LOAD,MAX
100
mA
Output Voltage Adjustment
Range
2.5
5.5
V
3.15
3.45
V
180
µA
Shutdown Supply Current
I
Q,SHDN
6
µA
Leakage Current into OUT in
Shutdown
5
µA
SHDN Input Logic Voltage
V
IL
0.2
·
V
IN
V
Input Undervoltage Lockout
Voltage
Input Voltage Range
V
IN
1.6
5.5
V
V
UVLO
0.6
1.4
V
Output Voltage
V
OUT
3.15
3.45
V
V
IH
0.7
·
V
IN
V
SHDN Input Leakage Current
I
SHDN
-1
1
µA
FB Regulation Voltage
V
FB
1.205
1.265
V
FB Input Bias Current
200
nA
FB Dual Mode Threshold
40
mV
200
mV
POK Trip Voltage
1.0
1.2
V
POK Output Low Voltage
V
OL
100
mV
POK Leakage Current
0.2
µA
Switching Frequency
f
OSC
1.1
1.9
MHz
CONDITIONS
1.6V
≤ V
IN
≤ 5.5V
V
IN
= V
SHDN
= 4V, V
FB
= 0
V
SHDN
= 5.5V
2.5V
≤ V
IN
≤ 5.5V
1.6V
≤ V
IN
≤ 5.5V
2.5V
≤ V
IN
≤ 5.5V, 0 ≤ I
LOAD
≤ 100mA
V
IN
= V
SHDN
= 2.5V, V
FB
= 0
1.6V
≤ V
IN
≤ 5.5V, V
SHDN
= 0
V
IN
= 1.65V, V
OUT
= 3.3V
V
FB
= 1.27V
V
IN
= 2V, V
OUT
= 3.3V, V
SHDN
= 0
1.6V
≤ V
IN
≤ 5.5V
Internal feedback
External feedback
Falling edge at FB
I
SINK
= 0.5mA, V
IN
= 2V
V
POK
= 5.5V
1.6V
≤ V
IN
≤ 5.5V, V
FB
= 1V
2V
≤ V
IN
≤ 5.5V, 0 ≤ I
LOAD
≤ 50mA