Datasheet

LTC3374
7
3374fa
For more information www.linear.com/LTC3374
Oscillator Frequency vs R
T
Enable Threshold vs TemperatureV
TEMP
vs Temperature
Typical perForMance characTerisTics
Buck V
IN
Supply Current
vs Temperature
Buck V
IN
Supply Current
vs Temperature
V
OUT
vs Temperature
Enable Pin Precision Threshold
vs Temperature
R
RT
(kΩ)
250
f
OSC
(MHz)
2.0
2.5
3.0
650 750700
3374 G09
1.5
1.0
0
350
450
550
300 800
400
500
600
0.5
4.0
3.5
V
CC
= 3.3V
0
–200
V
TEMP
(mV)
0
400
1400
800
20 10080
200
1000
1200
600
40 60 120 140
ACTUAL V
TEMP
IDEAL V
TEMP
TEMPERATURE (°C)
3374 G10
TEMPERATURE (°C)
–50
400
EN THRESHOLD (mV)
450
550
600
650
900
750
0
50
75
3374 G11
500
800
850
700
–25 25
100
125
150
ALL REGULATORS DISABLED
V
CC
= 3.3V
EN RISING
EN FALLING
TEMPERATURE (°C)
–50
EN THRESHOLD (mV)
395
410
150
3374 G12
385
380
0
50
100
–25
25
75
125
420
390
400
405
415
EN RISING
EN FALLING
TEMPERATURE (°C)
–50
I
VIN_BURST
(µA)
40
150
3374 G13
10
0
1251007550250–25
50
20
30
Burst Mode OPERATION
FB = 850mV
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 3.3V
TEMPERATURE (°C)
–50
I
VIN_FORCED_CONTINUOUS
(µA)
450
500
150
3374 G14
50
100
150
0
1251007550250–25
550
200
250
300
350
400
FORCED CONTINUOUS MODE
FB = 0V
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 3.3V
TEMPERATURE (°C)
–50
V
OUT
(V)
1.84
1.86
150
3374 G15
1.72
1251007550250–25
1.88
1.74
1.76
1.78
1.80
1.82
FORCED CONTINUOUS MODE
LOAD = 0mA
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 3.3V
PMOS Current Limit
vs Temperature
TEMPERATURE (°C)
–50
I
FWD
(A)
2.5
150
3374 G16
2.1
2.2
2.0
1251007550250–25
2.6
2.3
2.4
V
IN
= 3.3V