參數(shù)資料
型號: LTC3714EG
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Intel Compatible, Wide Operating Range, Step-Down Controller with Internal Op Amp
中文描述: 2 A SWITCHING CONTROLLER, PDSO28
封裝: 5.30 MM, PLASTIC, SSOP-28
文件頁數(shù): 3/28頁
文件大小: 345K
代理商: LTC3714EG
LTC3714
3
3714f
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25
°
C. V
IN
= 15V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
RUN/SS(LE)
V
RUN/SS(LT)
I
RUN/SS(C)
I
RUN/SS(D)
V
IN(UVLO)
V
IN(UVLOR)
TG R
UP
TG R
DOWN
BG R
UP
BG R
DOWN
TG t
r
TG t
f
BG t
r
BG t
f
Internal V
CC
Regulator
V
INTVCC
V
LDO(LOADREG)
Internal V
CC
Load Regulation
V
EXTVCC
EXTV
CC
Switchover Voltage
V
EXTVCC
EXTV
CC
Switch Drop Voltage
V
EXTVCC(HYS)
EXTV
CC
Switchover Hysteresis
PGOOD Output
V
FBH
PGOOD Upper Threshold
V
FBL
PGOOD Lower Threshold
V
FB(HYS)
PGOOD Hysteresis
V
PGL
PGOOD Low Voltage
VID DAC
V
VID(T)
VID0-VID4 Logic Threshold Voltage
I
VID(PULLUP)
VID0-VID4 Pull-Up Current
V
VID(PULLUP)
VID0-VID4 Pull-Up Voltage
I
VID(LEAK)
VID0-VID4 Leakage Current
R
VID
Resistance from V
OSENSE
to V
FB
V
OSENSE
DAC Output Accuracy
PARAMETER
RUN Pin Latchoff Enable Threshold
RUN Pin Latchoff Threshold
Soft-Start Charge Current
Soft-Start Discharge Current
Undervoltage Lockout Threshold
Undervoltage Lockout Threshold
TG Driver Pull-Up On Resistance
TG Driver Pull-Down On Resistance
BG Driver Pull-Up On Resistance
BG Driver Pull-Down On Resistance
TG Rise Time
TG Fall Time
BG Rise Time
BG Fall Time
CONDITIONS
RUN/SS Pin Rising
RUN/SS Pin Falling
MIN
TYP
4
3.5
–1.2
1.8
3.4
3.5
2
2
3
1
20
20
20
20
MAX
4.5
4.2
–3
3
3.9
4
3
3
4
2
UNITS
V
IN
= 5V unless otherwise noted.
V
V
–0.5
0.8
μ
A
μ
A
V
V
ns
ns
ns
ns
V
IN
Falling
V
IN
Rising
TG High
TG Low
BG High
BG Low
C
LOAD
= 3300pF
C
LOAD
= 3300pF
C
LOAD
= 3300pF
C
LOAD
= 3300pF
G
G
Internal V
CC
Voltage
6V < V
IN
< 30V, V
EXTVCC
= 4V
I
CC
= 0mA to 20mA, V
EXTVCC
= 4V
I
CC
= 20mA, V
EXTVCC
Rising
I
CC
= 20mA, V
EXTVCC
= 5V
G
4.7
5
5.3
±
2
V
%
V
–0.1
4.7
150
200
G
4.5
300
mV
mV
V
FB
Rising
V
FB
Falling
V
FB
Returning
I
PGOOD
= 1mA
7.5
–7.5
10
–10
1
0.15
12.5
–12.5
2.5
0.4
%
%
%
V
0.4
1.2
–2.5
4.5
0.01
10
0
2
V
V
VID0
to V
VID4
= 0V
V
VID0
to V
VID4
Open
V
VID0
to V
VID4
= 5V, V
RUN/SS
= 0V
μ
A
V
μ
A
K
%
1
6
14
0.25
V
OSENSE
Programmed from
0.6V to 1.75V (Note 5)
–0.45
Internal Op Amp
V
OS
I
OS
I
B
CMRR
Input Offset Voltage
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
400
4
45
100
80
1000
10
80
μ
V
nA
nA
dB
dB
V
CM
= 0V to (V
CC
– 1V)
V
CM
= 0V to 18V
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