參數(shù)資料
型號： LTC3713EG
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： Low Input Voltage, High Power, No RSENSE Synchronous Buck DC/DC Controller
中文描述： 2 A SWITCHING CONTROLLER, 1900 kHz SWITCHING FREQ-MAX, PDSO24
封裝： PLASTIC, SSOP-24
文件頁數(shù)： 2/24頁
文件大?。?/td> 325K
代理商： LTC3713EG
2
LTC3713
3713fa
(Note 1)
Input Supply Voltage (V
IN2
).......................10V to –0.3V
Boosted Topside Driver Supply Voltage
(BOOST)............................................... 42V to –0.3V
V
IN1
, I
ON
, SW1, SENSE
+
Voltages............. 36V to –0.3V
RUN/SS, PGOOD Voltages......................... 7V to –0.3V
FCB, V
ON
, V
RNG
Voltages .......... INTV
CC
+ 0.3V to –0.3V
I
TH
, V
FB1
, SENSE
–
Voltages ..................... 2.7V to –0.3V
SW2 Voltage............................................. 36V to –0.4V
V
FB2
Voltage .................................................V
IN2
+ 0.3V
SHDN Voltage......................................................... 10V
TG, BG, INTV
CC
Peak Currents.................................. 2A
TG, BG, INTV
CC
RMS Currents ............................ 50mA
Operating Ambient Temperature
Range (Note 4)................................... –40
°
C to 85
°
C
Junction Temperature (Note 2)............................ 125
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
ORDER PART
NUMBER
LTC3713EG
T
JMAX
= 125
°
C,
θ
JA
= 130
°
C/W
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25
°
C. V
IN1
= 15V, V
IN2
= 1.5V unless otherwise noted.
SYMBOL
PARAMETER
Buck Regulator
I
Q(VIN1)
Input DC Supply Current (V
IN1
)
Normal
Shutdown Supply Current
V
FB1
Feedback Reference Voltage
I
FB1
Feedback Current
V
FB1(LINEREG)
Feedback Voltage Line Regulation
V
FB1(LOADREG)
Feedback Voltage Load Regulation
g
m(EA)
Error Amplifier Transconductance
V
FCB
Forced Continuous Threshold
I
FCB
Forced Continuous Pin Current
t
ON
On-Time
ABSOLUTEW
W
W
U
PACKAGE/ORDER U
U
W
ELECTRICAL CHARACTERISTICS
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
G PACKAGE
24-LEAD PLASTIC SSOP
24
23
22
21
20
19
18
17
16
15
14
13
RUN/SS
V
ON
PGOOD
V
RNG
FCB
I
TH
SGND1
I
ON
V
FB1
SHDN
SGND2
V
FB2
BOOST
TG
SW1
SENSE
+
SENSE
–
PGND1
BG
INTV
CC
V
IN1
V
IN2
PGND2
SW2
Consult LTC Marketing for parts specified with wider operating temperature ranges.
CONDITIONS
MIN
TYP
MAX
UNITS
900
15
0.800
–5
0.002
–0.05
1.7
0.8
–1
250
500
50
250
133
93
186
–67
–47
–93
7.5
600
1.5
4
3.5
2000
30
0.808
±
50
μ
A
μ
A
V
nA
I
TH
= 1.2V (Note 3)
(Note 3)
V
IN1
= 4V to 30V, I
TH
= 1.2V (Note 3)
I
TH
= 0.5V to 1.9V (Note 3)
I
TH
= 1.2V (Note 3)
G
0.792
%/V
%
mS
G
–0.3
2
0.84
–2
300
600
100
400
153
107
214
G
1.4
0.76
G
V
V
FCB
= 0.8V
I
ON
= 60
μ
A, V
ON
= 1.5V
I
ON
= 30
μ
A, V
ON
= 1.5V
I
ON
= 180
μ
A
μ
A
ns
ns
ns
ns
mV
mV
mV
mV
mV
mV
%
mV
200
400
t
ON(MIN)
t
OFF(MIN)
V
SENSE(MAX)
Minimum On-Time
Minimum Off-Time
Maximum Current Sense Threshold
V
PGND
– V
SW
V
RNG
= 1V, V
FB1
= 0.76V
V
RNG
= 0V, V
FB1
= 0.76V
V
RNG
= INTV
CC
, V
FB1
= 0.76V
V
RNG
= 1V, V
FB1
= 0.84V
V
RNG
= 0V, V
FB1
= 0.84V
V
RNG
= INTV
CC
, V
FB1
= 0.84V
G
G
G
113
79
158
V
SENSE(MIN)
Minimum Current Sense Threshold
V
PGND
– V
SW
V
FB1(OV)
V
FB1(UV)
V
RUN/SS(ON)
V
RUN/SS(LE)
V
RUN/SS(LT)
Output Overvoltage Fault Threshold
Output Undervoltage Fault Threshold
RUN Pin Start Threshold
RUN Pin Latchoff Enable Threshold
RUN Pin Latchoff Threshold
5.5
520
0.8
9.5
680
2
4.5
4.2
G
V
V
V
RUN/SS Pin Rising
RUN/SS Pin Falling
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