LTC3824HMSE#TRPBF Linear Technology, LTC3824HMSE#TRPBF Datasheet - Page 3

• Manufacturer Part Number: LTC3824HMSE#TRPBF
• Description: IC CTRLR STP-DWN HV 10-MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3824HMSE#TRPBF

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 36 V
• Current - Output: 2A
• Frequency - Switching: 200kHz ~ 400kHz
• Voltage - Input: 4 ~ 60 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

elecTrical characTerisTics
junction temperature range, otherwise specifications are at T
outputs, unless otherwise specified.
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 LTC3824 is tested under pulsed load conditions such that
T
from 0°C to 85°C operating junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design characterization and correlation with statistical process controls.
The LTC3824I is guaranteed over the –40°C to 125°C operating junction
temperature range. The LTC3824H is guaranteed over the –40°C to 150°C
operating junction temperature range. The LTC3824MP is guaranteed
PARAMETER
V
V
V
V
Soft-Start Current I
V
V
SENSE Voltage at Burst Mode Operation
Current Limit Threshold (V
FB Overvoltage Threshold
Sense Input Current
Oscillator
Switching Frequency
Synchronization Pulse Threshold
on SYNC Pin
Synchronization Frequency Range
V
Minimum On-Time (Measured at GATE Pin)
Switching Frequency Foldback
Gate Driver
GATE Bias Voltage (V
GATE Bias Voltage (V
GATE High Voltage (V
GATE Peak Source Current
GATE Low Voltage (V
GATE Peak Sink Current
J
C
C
C
C
C
C
RSET
≈ T
Low
Source Current
Sink Current
Threshold for Switching Off
Burst Mode Threshold
Burst Mode Threshold Hysteresis
A
. The LTC3824E is guaranteed to meet performance specifications
SS
CC
CAP
GATE
CC
–V
–V
–GND)
–V
CAP
GATE
CC
CAP
–V
)
)
)
SENSE
)
CONDITIONS
I
V
V
V
V
V
V
(V
V
V
V
R
R
Rising Edge V
R
R
R
CCM Operation (Note 5)
V
9V ≤ V
V
4V ≤ V
6V ≤ V
4V ≤ V
C
8V ≤ V
4V ≤ V
C
VC
VC
VC
SYNC/MODE
SS
CC
CC
CC
C
SENSE
FB
CC
GATE
GATE
SET
SET
SET
SET
SET
CC
= 1.6V
= 0
= 0.3V
= 0.5V to 1.3V, V
= 0.7V to 1.3V, V
= 0.1V to 1.5V
≤ 60V, V
≤ 60V
≤ 60V: LTC3824E/LTC3824I
= 12V, I
–V
= 392k: LTC3824E/LTC3824I
= 200k
= 392k
= 200k
= 392k
= 10nF
= 10nF
CC
CC
CC
CC
CC
CC
SENSE
= V
≤ 60V, I
≤ 8V, I
≤ 8V, I
≤ 60V, I
≤ 60V, I
< 8V, I
CC
LTC3824MP/LTC3824H
GATE
= 0V (Note 4)
C
) at 30% Duty Cycle
LTC3824MP/LTC3824H
SYNC
Rising, SYNC/MODE Open
GATE
GATE
GATE
The
= 15mA
70% Duty Cycle
GATE
GATE
GATE
A
= 10mA
= 15mA
= 10mA
FB
FB
= 25°C (Note 2). V
l
= 10mA: LTC3824E/LTC3824I
= –15mA
= 15mA
= V
= V
denotes the specifications which apply over the specified operating
REF
REF
and tested over the full –55°C to 150°C operating junction temperature
range. High junction temperatures degrade operating lifetimes; operating
lifetime is derated for junction temperatures greater than 125°C. Note that
the maximum ambient temperature consistent with these specifications
is determined by specific operating conditions in conjunction with board
layout, the rated package thermal impedance and other environmental
factors. The junction temperature (T
temperature (T
the formula:
where θ
impedance.
–100mV (V
+100mV (V
LTC3824MP/LTC3824H
T
J
= T
JA
A
(in °C/W) is the package junction to ambient thermal
+ (P
SYNC
SYNC
CC
A
D
, in °C) and power dissipation (P
= 12V, R
• θ
= 0V)
= 0V)
JA
)
SET
= 392k, C
l
l
l
l
l
l
l
l
l
l
l
l
l
l
J
, in °C) is calculated from the ambient
MIN
170
170
320
230
460
2.5
7.0
6.8
6.8
0.2
CAP
80
75
35
3
= 0.1µF . No load on any
D
0.35
0.84
0.04
0.85
0.05
TYP
100
100
200
200
400
350
0.1
1.2
7.9
7.9
0.5
2.5
0.1
2.5
, in Watts) according to
15
15
30
20
50
5
8
LTC3824
MAX
120
120
230
240
460
300
600
0.5
0.4
7.5
1.3
8.8
8.9
1.5
2.8
0.8
0.5
75
8
2
UNITS
3824fg
3
kHz
kHz
kHz
kHz
kHz
kHz
mV
mV
mV
mV
µA
µA
µA
µA
µA
ns
%
V
V
V
V
V
V
V
V
V
V
V
V
A
V
V
A