DC823B-B Linear Technology, DC823B-B Datasheet - Page 3

• Manufacturer Part Number: DC823B-B
• Description: BOARD EVAL LTM4600HV
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC823B-B

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
• Current - Output: 10A (Max)
• Voltage - Input: 4.5 V ~ 28 V
• Regulator Topology: Buck
• Frequency - Switching: 1.35MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4600HV
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

SYMBOL
Output Specifi cations
I
ΔV
ΔV
V
fs
t
ΔV
t
I
Control Stage
V
V
I
I
V
I
R
V
I
PGOOD Output
ΔV
ΔV
ΔV
V
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
application (front page) confi guration.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTM4600HVE is guaranteed to meet performance
specifi cations from 0°C to 85°C. Specifi cations over the –40°C to 85°C
OUTDC
START
SETTLE
OUTPK
RUN(C)/SS
RUN(D)/SS
EXTVCC
FCB
OUT(AC)
OSET
RUN/SS
IN
FBHI
FCB
PGL
V
OUT(LINE)
OUT(LOAD)
OUTLS
OSETH
OSETL
OSET(HYS)
V
OUT
– SV
OUT
IN
PARAMETER
Output Continuous Current Range
(See Output Current Derating Curves for
Different V
Line Regulation Accuracy
Load Regulation Accuracy
Output Ripple Voltage
Output Ripple Voltage Frequency
Turn-On Time
Voltage Drop for Dynamic Load Step
Settling Time for Dynamic Load Step V
Output Current Limit
Voltage at V
RUN ON/OFF Threshold
Soft-Start Charging Current
Soft-Start Discharging Current
Current into EXTV
Resistor Between V
Forced Continuous Threshold
Forced Continuous Pin Current
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
IN
OSET
, V
OUT
Pin
CC
and T
OUT
Pin
and V
A
)
OSET
Pins
IN
= 12V Load: 10% to 90% to 10% of Full Load
A
= 25°C, V
CONDITIONS
V
V
V
V
V
V
FCB = 0V, I
V
V
C
See Table 2
Output Voltage in Foldback
I
V
V
EXTV
EXTV
V
V
V
V
I
OUT
PGOOD
IN
IN
OUT
IN
OUT
IN
OUT
OUT
OUT
RUN/SS
RUN/SS
FCB
OSET
OSET
OSET
The
V
V
V
V
V
V
V
= 12V, V
= 12V, V
= 24V, V
= 4.5V to 28V
= 0A, V
CC
IN
IN
IN
IN
IN
IN
IN
= 0.6V
CC
= 1.5V. FCB = 0V, I
= 1.5V. FCB = 0V, I
= 1.5V, I
= 1.5V, Load Step: 0A/μs to 5A/μs
= 3 • 22μF 6.3V, 470μF 4V POSCAP,
Rising
Falling
Returning
= 5V
= 12V (Note 4)
= 12V
= 5V
= 24V, V
= 12V, V
= 5V, V
= 5mA
= 5V, FCB = 0V, V
= 0V, FCB = 0V
●
= 0V
= 4V
IN
OUT
denotes the specifi cations which apply over the full operating
= 12V. External C
OUT
OUT
OUT
OUT
OUT
OUT
= 5A, V
OUT
OUT
= 1.5V, FCB = 0V, I
operating temperature range are assured by design, characterization
and correlation with statistical process controls. The LTM46000HVMP
is guaranteed and tested over the –55°C to 125°C temperature range.
For output current derating at high temperature, please refer to Thermal
Considerations and Output Current Derating discussion.
Note 3: Refer to current de-rating curves and thermal application note.
Note 4: Test assumes current derating versus temperature.
= 1.5V
= 2.5V (Note 3)
= 1.5V
= 1A
= 1.5V
= 2.5V
= 1.5V
IN
OUT
OUT
OUT
= 12V, V
= 1.5V, I
= 0A,
= 0A to 10A
IN
OUT
= 120μF, C
OUT
OUT
= 1.5V
= 0A
= 0A
●
●
●
OUT
= 200μF/Ceramic per typical
0.591
0.594
MIN
–0.5
0.57
–7.5
0.8
0.8
7.5
0
0
LTM4600HV
0.15
–1.2
0.15
TYP
850
100
100
–10
0.5
0.7
0.6
0.6
1.5
1.8
0.6
10
36
25
17
17
17
16
–1
10
2
0.609
0.606
–12.5
MAX
±1.5
0.63
12.5
0.3
0.4
10
10
±1
15
–3
–2
2
3
4600hvfc
UNITS
mV
3
kHz
mV
mV
mA
ms
ms
P-P
kΩ
μA
μA
μA
μs
%
%
%
%
%
%
A
A
A
A
A
V
V
V
V
V