Datasheet

LTC3630A
5
3630afa
For more information www.linear.com/LTC3630A
Typical perForMance characTerisTics
Feedback Comparator Trip
Voltage vs Temperature
Feedback Comparator Hysteresis
vs Temperature
Peak Current Trip Threshold
vs Temperature and I
SET
Peak Current Trip Threshold
vs R
ISET
Peak Current Trip Threshold
vs Input Voltage
Quiescent V
IN
Supply Current
vs Input Voltage
Efficiency vs Input Voltage Line Regulation vs Input Voltage Load Regulation vs Load Current
INPUT VOLTAGE (V)
10
EFFICIENCY (%)
70
75
80
40
7060
3630a G07
65
60
55
20 30 50
85
90
95
I
LOAD
= 500mA
I
LOAD
= 100mA
I
LOAD
= 10mA
I
LOAD
= 1mA
V
OUT
= 5V
FIGURE 13 CIRCUIT
INPUT VOLTAGE (V)
5
–0.05
∆V
OUT
/V
OUT
(%)
–0.03
–0.01
0.01
15
25
35 45
3630a G08
55
0.03
0.05
–0.04
–0.02
0
0.02
0.04
75
65
FIGURE 13 CIRCUIT
I
LOAD
= 500mA
LOAD CURRENT (mA)
0
OUTPUT VOLTAGE (V)
4.99
5.00
5.01
300
500
3630a G09
4.98
4.97
4.96
100 200 400
5.02
5.03
5.04
V
IN
= 12V
V
OUT
= 5V
FIGURE 13 CIRCUIT
TEMPERATURE (°C)
–55
0.796
FEEDBACK COMPARATOR TRIP VOLTAGE (V)
0.798
0.800
0.802
0.804
–25 5 35 65
3630a G10
95 125
155
V
IN
= 12V
TEMPERATURE (°C)
–55
4.5
FEEDBACK COMPARATOR HYSTERESIS (mV)
4.6
4.8
4.9
5.0
5.5
5.2
5
65
95 125
3630a G11
4.7
5.3
5.4
5.1
–25
35
155
V
IN
= 12V
TEMPERATURE (°C)
–55
PEAK CURRENT TRIP THRESHOLD (mA)
600
1000
155
3630a G12
400
0
5
65
–25
35
95
125
V
IN
= 12V
800
200
1200
1400
I
SET
OPEN
I
SET
= GND
R
ISET
= 100kΩ
R
ISET
(kΩ)
0
1000
1200
1400
200
3630a G13
800
600
50 100 150
250
400
200
0
PEAK CURRENT TRIP THRESHOLD (mA)
V
IN
= 12V
INPUT VOLTAGE (V)
0
800
1000
1400
30 50
3630a G14
600
400
10 20
40 7060
200
0
1200
PEAK CURRENT TRIP THRESHOLD (mA)
I
SET
= OPEN
I
SET
= 100k
I
SET
= 0V
V
IN
VOLTAGE (V)
5
V
IN
SUPPLY CURRENT (µA)
6
8
10
3630a G15
4
2
0
25 45
15
35 55
12
14
16
75
65
SLEEP
SHUTDOWN