LTC3717EGN Linear Technology, LTC3717EGN Datasheet - Page 3

• Manufacturer Part Number: LTC3717EGN
• Description: IC STEP-DWN CONTRLR SYNC 16-SSOP
• Manufacturer: Linear Technology

Specifications of LTC3717EGN

• Applications: Controller, DDR, QDR
• Voltage - Input: 4 ~ 36 V
• Number Of Outputs: 1
• Voltage - Output: 2 ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are T
SYMBOL
V
V
TG R
TG R
BG R
BG R
TG t
TG t
BG t
BG t
Internal V
V
V
PGOOD Output
V
Note 1: Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2: T
dissipation P
CC(UVLO)
CC(UVLOR)
INTVCC
EXTVCC
PGL
V
V
V
V
V
V
LDO(LOADREG)
EXTVCC
EXTVCC(HYS)
FBH
FBL
FB(HYS)
LTC3717EGN: T
r
f
r
f
UP
DOWN
UP
DOWN
CC
J
is calculated from the ambient temperature T
Regulator
D
as follows:
PARAMETER
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
Internal V
Internal V
EXTV
EXTV
EXTV
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
J
= T
A
CC
CC
CC
+ (P
Switchover Voltage
Switch Drop Voltage
Switchover Hysteresis
CC
CC
D
Voltage
Load Regulation
• 130 C/W)
A
= 25 C. V
A
and power
CONDITIONS
V
V
TG High
TG Low
BG High
BG Low
C
C
C
C
6V < V
I
I
I
V
V
V
I
CC
CC
CC
PGOOD
CC
CC
LOAD
LOAD
LOAD
LOAD
FB
FB
FB
The
= 0mA to 20mA, V
= 20mA, V
= 20mA, V
Rising (0% = 1/3 V
Falling (0% = 1/3 V
Returning (0% = 1/3 V
Falling
Rising
CC
CC
= 3300pF
= 3300pF
= 3300pF
= 3300pF
= 5mA
= 15V unless otherwise noted.
< 30V, V
denotes specifications which apply over the full operating
EXTVCC
EXTVCC
Note 3: The LTC3717 is tested in a feedback loop that adjusts V
a specified error amplifier output voltage (I
Note 4: The LTC3717E is guaranteed to meet performance specifications from
0 C to 70 C. Specifications over the –40 C to 85 C operating temperature
range are assured by design, characterization and correlation with statistical
process controls.
EXTVCC
Rising
= 5V
EXTVCC
REF
REF
= 4V
)
)
REF
= 4V
)
MIN
4.7
4.5
– 8
8
TH
).
– 0.1
0.15
TYP
– 10
150
200
3.4
3.5
4.7
20
20
20
20
10
2
2
3
1
5
1
LTC3717
MAX
– 12
300
3.9
5.3
0.4
12
4
3
3
4
2
2
2
FB
sn3717 3717fs
to achieve
UNITS
3
mV
mV
ns
ns
ns
ns
%
%
%
%
V
V
V
V
V