DC1400A Linear Technology, DC1400A Datasheet - Page 3

• 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: -

ELECTRICAL CHARACTERISTICS
SYMBOL
I
I
Output Specifications
I
∆V
∆V
V
f
f
∆V
t
∆V
t
I
Control Section
V
SS Delay
I
V
operating temperature range, otherwise specifications are at T
Q(VIN)
S(VIN)
OUT(DC)
S
SYNC
START
SETTLE
OUT(PK)
FB
OUT(AC)
FB
RUN
V
V
OUT(LINE)
OUT(LOAD)
OUT(START)
OUT(LS)
OUT
OUT
PARAMETER
Input Supply Bias Current
Input Supply Current
Output Continuous Current Range
(Note 3)
Line Regulation Accuracy
Load Regulation Accuracy
Output Ripple Voltage
Switching Frequency
SYNC Capture Range
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load,
Settling Time for Dynamic Load
Step
Output Current Limit
Voltage at FB Pin
Internal Soft-Start Delay
RUN Pin On/Off Threshold
CONDITIONS
V
V
V
V
V
V
Shutdown, RUN = 0, V
V
V
V
V
V
I
V
I
C
C
I
C
V
Load: 0% to 50% to 0% of Full Load, V
V
C
I
RUN Rising
RUN Falling
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
V
V
V
V
V
V
V
V
V
= 3.3V, No Switching, MODE = V
= 3.3V, No Switching, MODE = 0V
= 3.3V, V
= 5V, No Switching, MODE = V
= 5V, No Switching, MODE = 0V
= 5V, V
= 3.3V, V
= 5V, V
= 5V, V
= 0A, C
= 8A, V
= 1A Resistive Load, Track = V
= 0A, V
IN
IN
IN
IN
IN
IN
IN
IN
IN
= 1.5V
= 1.5V, V
= 1.5V (Note 3)
= 1.5V
= 100µF , V
= 100µF , V
= 100µF Ceramic, 100µF POSCAP ,
= 1.5V, C
= 100µF
= 3.3V, 5.5V
= 2.7V
= 3.3V, 5.5V, I
= 2.7V, I
= 3.3V
= 5V
= 2.7V, V
= 3.3V, V
= 5V, V
The
OUT
OUT
OUT
OUT
IN
OUT
OUT
OUT
IN
OUT
OUT
= 5V, V
= 1.5V, Switching Continuous
= 1.5V, I
= 1.5V
A
LOAD
l
OUT
OUT
OUT
OUT
= 100µF X5R Ceramic, V
= 1.5V, V
= 1.5V, Switching Continuous
= 1.5V, I
from 2.7V to 5.5V, I
= 25°C (Note 2). V
denotes the specifications which apply over the full internal
= 1.5V
= 100µF
= 1.5V, I
= 1.5V, V
= 1.5V
= 1.5V
= 0A to 5A
LOAD
OUT
IN
OUT
OUT
IN
= 5V
= 1.5V
= 0A to 8A
= 8A
= 2.7V to 5.5V
OUT
IN
= 8A
= 5V,
= 0A
IN
IN
IN
OUT
,
IN
IN
= 0A
= 5V unless otherwise noted. See Figure 1.
IN
= 5V,
= 5V,
l
l
l
l
0.590
0.587
1.25
0.75
MIN
1.4
1.3
0
0
0.596
0.596
LTM4608A
1.15
2.93
1.55
TYP
400
450
100
1.3
4.5
0.1
0.3
0.3
1.5
0.2
1.4
55
75
10
10
10
15
10
11
13
90
1
8
0.602
0.606
MAX
0.25
0.75
0.75
1.75
2.25
1.7
1.5
8
5
UNITS
mV
4608afc
3
MHz
MHz
%/V
mA
mA
mA
mA
mV
mV
mV
P-P
µA
µA
µA
µA
µs
µs
µs
%
%
A
A
A
A
A
A
A
V
V
V
V