Datasheet

4
LTC34 06B-2
sn3406b2 3406b2fs
TYPICAL PERFOR A CE CHARACTERISTICS
UW
(From Figure 1a Except for the Resistive Divider Resistor Values)
R
DS(ON)
vs Temperature
Dynamic Supply Current vs
Supply Voltage
Dynamic Supply Current vs
Temperature
Switch Leakage vs Temperature
Switch Leakage vs Input Voltage
Discontinuous Operation
TEMPERATURE (°C)
–50
0.4
0.5
0.7
25 75
3406B G10
0.3
0.2
–25 0
50 100 125
0.1
0
0.6
R
DS(ON)
()
MAIN SWITCH
SYNCHRONOUS SWITCH
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
TEMPERATURE (°C)
–50
SWITCH LEAKAGE (nA)
200
250
300
25 75
3406B G13
150
100
–25 0
50 100 125
50
0
V
IN
= 5.5V
RUN = 0V
MAIN SWITCH
SYNCHRONOUS SWITCH
INPUT VOLTAGE (V)
0
0
SWITCH LEAKAGE (pA)
20
40
60
80
120
1
234
3406B G14
56
100
RUN = 0V
T
A
= 25°C
SYNCHRONOUS
SWITCH
MAIN
SWITCH
SUPPLY VOLTAGE (V)
2
DYNAMIC SUPPLY CURRENT (µA)
6
3406B G11
3
4
5
2.5
3.5
4.5
5.5
450
430
410
390
370
350
330
310
290
270
250
V
OUT
= 1.8V
I
LOAD
= 0A
T
A
= 25°C
TEMPERATURE (°C)
–50
390
370
350
330
310
290
270
250
3406B G12
0
50 100 125
DYNAMIC SUPPLY CURRENT (µA)
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 0A
SW
2V/DIV
V
OUT
10mV/DIV
AC COUPLED
I
L
100mA/DIV
1µs/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 50mA
3406B G15
Start-Up from Shutdown
Load Step
Load Step
RUN
5V/DIV
V
OUT
1V/DIV
AC COUPLED
I
L
500mA/DIV
40µs/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 600mA (LOAD: 3 RESISTOR)
3406B G16
V
OUT
100mV/DIV
AC COUPLED
I
L
500mA/DIV
I
LOAD
500mA/DIV
20µs/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 0mA TO 600mA
3406B G17
V
OUT
100mV/DIV
AC COUPLED
I
LOAD
500mA/DIV
I
L
500mA/DIV
20µs/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 50mA TO 600mA
3406B G18