DC1400A Linear Technology, DC1400A Datasheet - Page 6

• Manufacturer Part Number: DC1400A
• Description: BOARD EVAL LTM4608
• Manufacturer: Linear Technology
• Series: LTM®r

Specifications of DC1400A

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V
• Current - Output: 8A
• Voltage - Input: 2.5 ~ 5.5 V
• Regulator Topology: Buck
• Frequency - Switching: 1.5MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4608
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

AC COUPLED
LTM4608A
TYPICAL PERFORMANCE CHARACTERISTICS
6
20mV/DIV
0.5V/DIV
2V/DIV
2A/DIV
I
V
V
LOAD
3.0
2.5
2.0
1.5
1.0
0.5
OUT
OUT
V
0
IN
0
Load Transient Response
Start-Up
2.5V Output Current
V
V
C
(DEFAULT 100µs SOFT-START)
V
V
2.5A/µs STEP
C
C1 = NONE, C3 = NONE FROM FIGURE 18
IN
OUT
OUT
IN
OUT
OUT
= 5V
= 5V
= 1.8V, R
= 100µF X5R
= 1.5V
= 100µF NO LOAD AND 8A LOAD
5
OUTPUT CURRENT (A)
FB
= 4.87k
50µs/DIV
20µs/DIV
10
15
4608A G16
4608A G13
4608A G10
20
AC COUPLED
20mV/DIV
2V/DIV
2V/DIV
5A/DIV
2A/DIV
I
V
LOAD
602
600
598
596
594
592
590
OUT
–55
V
Short-Circuit Protection
(2.5V Short, No Load)
Load Transient Response
V
V
V
V
2.5A/µs STEP
C
C1 = NONE, C3 = NONE FROM FIGURE 18
IN
OUT
IN
OUT
OUT
FB
= 5V
= 5V
vs Temperature
= 2.5V
= 1.5V, R
= 100µF X5R
–25
V
V
I
OUT
IN
OUT
TEMPERATURE (°C)
FB
5
= 6.65k
50µs/DIV
20µs/DIV
35
V
IN
= 5.5V
V
65
V
IN
IN
= 2.7V
= 3.3V
95
4608A G14
4608A G11
4608A G17
125
AC COUPLED
20mV/DIV
2A/DIV
5V/DIV
5V/DIV
5A/DIV
I
V
–0.1
–0.2
–0.3
–0.5
–0.6
LOAD
–0.4
OUT
0
Load Transient Response
Load Regulation vs Current
0
Short-Circuit Protection
(2.5V Short, 4A Load)
V
V
2.5A/µs STEP
C
C1 = 100pF , C3 = NONE FROM FIGURE 18
V
V
IN
OUT
OUT
FC MODE
V
V
IN
OUT
IN
OUT
= 5V
= 5V
V
V
= 3.3V
= 1.2V, R
= 2 × 100µF
IN
OUT
= 2.5V
= 1.5V
2
LOAD CURRENT (A)
FB
= 10k
20µs/DIV
50µs/DIV
4
6
I
OUT
4608afc
LOAD
4608A G12
4608A G18
4608A G15
8