LTC1174HVCN8 Linear Technology, LTC1174HVCN8 Datasheet - Page 3

• Manufacturer Part Number: LTC1174HVCN8
• Description: IC DC/DC CONV STP-DWN&INVRT 8DIP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Invertingr

Specifications of LTC1174HVCN8

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 18 V
• Current - Output: 1A
• Frequency - Switching: 200kHz
• Voltage - Input: 4 ~ 18.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL PARAMETER
I
V
I
I
V
I
R
t
V
V
I
I
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.
The
otherwise specifications are at – 40°C ≤ T
SYMBOL PARAMETER
V
I
I
t
R
Q
LBIN
LBOUT
PEAK
OFF
IH
IL
LBOUT
PEAK
OFF
LBTRIP
HYST
IH
IL
ON
FB
ON
●
denotes specifications which apply over the full operating temperature range,
Output Voltage Load Regulation
Input DC Supply Current (Note 4)
Low-Battery Trip Point
Current into Pin 3
Current Sunk by Pin 2
Comparator Hysteresis
Current Limit
ON Resistance of Switch
Switch Off-Time (Note 6)
SHUTDOWN Pin High
SHUTDOWN Pin Low
SHUTDOWN Pin Input Current
SHUTDOWN Pin Input Current
Feedback Voltage
Current Sunk by Pin 2
Current Limit
Switch Off-Time (Note 6)
Switch On Resistance
A
CONDITIONS
LTC1174-3.3 (Note 3)
LTC1174-5 (Note 3)
Active Mode
LTC1174: 4V < V
LTC1174HV: 4V < V
Sleep Mode
LTC1174: 4V < V
LTC1174HV: 4V < V
SHUTDOWN (Note 4)
LTC1174: V
LTC1174HV: V
LTC1174: V
LTC1174HV: V
LTC1174/LTC1174HV
I
I
LTC1174
LTC1174HV
V
Minimum Voltage at Pin 8 for Device to Be Active
Maximum Voltage at Pin 8 for Device to Be in Shutdown
LTC1174: V
LTC1174HV: V
0 ≤ V
≤ 85°C. LTC1174I and LTC1174HVI Only.
CONDITIONS
LTC1174I/LTC1174HVI
V
V
I
I
I
I
V
V
LTC1174I/LTC1174HVI
PGM
PGM
PGM
PGM
PGM
PGM
OUT
LBOUT
LBOUT
OUT
OUT
20mA < I
20mA < I
20mA < I
20mA < I
= V
= 0V, V
SHUTDOWN
at Regulated Value
= V
= 0V, V
= V
= 0V, V
at Regulated Value (LTC1174I)
at Regulated Value (LTC1174HVI)
= 0.4V (LTC1174I)
= 0.4V (LTC1174HVI)
IN
IN
IN
, V
A
, V
, V
SHUTDOWN
LBOUT
SHUTDOWN
= 25°C. V
OUT
LOAD
LOAD
LOAD
LOAD
OUT
OUT
OUT
OUT
OUT
SHUTDOWN
LBOUT
SHUTDOWN
≤ 0.8V
= 0V
IN
IN
= 0V (LTC1174I)
= 0V (LTC1174HVI)
= 0V
= 0V (LTC1174I)
= 0V (LTC1174HVI)
The
= 0.4V
< 175mA, I
< 400mA, I
< 175mA, I
< 400mA, I
< 12V, I
< 12V
IN
IN
= 0.4V
< 16V, I
< 16V
= 0V, 4V < V
= 12V
●
IN
denotes specifications which apply over the full operating
= 0V, 4V < V
= 16V
= 9V, V
PGM
PGM
PGM
PGM
PGM
PGM
Note 2: T
dissipation P
= 0V
= 0V
= V
= 0V
= V
LTC1174CN8, LTC1174CN8-3.3, LTC1174CN8-5:
LTC1174CS8, LTC1174CS8-3.3, LTC1174CS8-5:
SHUTDOWN
= 0V
IN
IN
IN
< 12V
IN
J
< 16V
T
T
is calculated from the ambient temperature T
LTC1174-3.3/LTC1174-5
J
J
D
= T
= T
according to the following formulas:
= V
A
A
+ (P
+ (P
IN
, I
D
D
PGM
× 110°C/W)
× 150°C/W)
= 0V, unless otherwise noted.
●
●
●
●
●
●
●
●
●
●
●
●
0.54
0.27
MIN
0.6
MIN
1.18
0.75
0.50
0.54
1.0
7.5
1.2
0.5
2.0
1.8
3
1.25
0.60
0.34
0.75
0.90
TYP
–45
–50
450
450
130
130
1.25
0.60
0.34
0.60
0.34
1.2
0.8
TYP
–5
–5
15
1.2
0.8
0.9
1
2
4
4
4
LTC1174
A
MAX
0.83
0.53
1.30
1.55
0.75
–70
–70
–70
–70
600
600
180
180
MAX
0.5
1.5
2.0
1.31
0.84
0.86
1.4
1.5
0.5
0.5
10
25
30
and power
2.0
1.6
6.0
6.2
1.7
5
UNITS
UNITS
1174fe
3
mV
mV
mV
mV
mA
mA
mV
mA
mA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µs
Ω
Ω
µs
µs
Ω
V
A
A
V
V
V
A
A
A
A