LTC1430ACS Linear Technology, LTC1430ACS Datasheet - Page 4

• Manufacturer Part Number: LTC1430ACS
• Description: IC SW REG CNTRLR STEP-DWN 16SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1430ACS

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V, Adj
• Current - Output: 50A
• Frequency - Switching: 50kHz ~ 500kHz
• Voltage - Input: 4 ~ 8 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC1430A
TYPICAL PERFOR A CE CHARACTERISTICS
4
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
850
800
750
700
650
600
550
500
450
400
350
– 40
– 40
I
vs Temperature
Error Amplifier Transconductance
vs Temperature
MAX
g
V
m
CC
–20
– 20
=
= 5V
Pin Sink Current
I
COMP
V
FB
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
20
20
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
40
0
40
Output Voltage vs Load Current
with Current Limit
T
V
FIGURE 4
A
CC
= 25 C
= 5V
60
60
R
2
I(MAX)
W
80
80
LOAD CURRENT (A)
1430 G04
= 10k
1430 G01
4
U
100
100
6
R
I(MAX)
8
–10
= 16k
240
230
220
210
200
190
180
170
– 2
– 4
– 6
– 8
10
8
6
4
2
0
– 40
– 40
10
Oscillator Frequency
vs Temperature
V
V
FREQSET FLOATING
V
1430 G07
CC
CC
FB
–20
– 20
= 5V
= 5V
12
vs Temperature
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
20
20
40
40
1000
60
60
100
0.1
10
1
0
Supply Current
vs Oscillator Frequency
80
80
T
V
FIGURE 4
1430 G02
A
CC
1430 G05
= 25 C
= 5V
100
100
OSCILLATOR FREQUENCY (kHz)
100
IV
200
CC
– 0.2
– 0.4
– 0.6
– 0.8
–1.0
100
0.4
0.2
90
80
70
95
85
75
0
– 40
WITH 10,000pF,
IPV
Maximum Duty Cycle
vs Temperature
Load Regulation
0
300
V
V
T
V
V
FIGURE 4
A
COMP
FB
OUT
CC
PV
CC
IPV
PV
IPV
PV
= 25 C
1
– 20
= 1.265V
= 5V
CC
(LOADED
CC
CC
CC
CC
= 3.3V
= V
= 12V)
2
= 12V)
= 5V)
(NO LOAD,
(NO LOAD,
400
CC
0
TEMPERATURE ( C)
LOAD CURRENT (A)
3
1430 G08
4
20
500
5
40
6
60
7
8
80
1430 G03
1460 G06
9
100
10