LTC1871-1 LINER [Linear Technology], LTC1871-1 Datasheet - Page 3

• Manufacturer Part Number: LTC1871-1
• Description: High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
ORDER INFORMATION
LEAD FREE FINISH
LTC3780EG#PBF
LTC3780IG#PBF
LTC3780EUH#PBF
LTC3780IUH#PBF
LEAD BASED FINISH
LTC3780EG
LTC3780IG
LTC3780MPG
LTC3780EUH
LTC3780IUH
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
junction temperature range, otherwise specifi cations are at T
SYMBOL
Main Control Loop
V
I
V
V
g
g
I
V
I
V
UVLO
V
I
V
V
VOSENSE
Q
FCB
SENSE
m(EA)
m(GBW)
OSENSE
LOADREG
REF(LINEREG)
FCB
BINHIBIT
OVL
STBYMD(START)
STBYMD(KA)
PARAMETER
Feedback Reference Voltage
Feedback Pin Input Current
Output Voltage Load Regulation
Reference Voltage Line Regulation
Error Amplifi er Transconductance
Error Amplifi er GBW
Input DC Supply Current
Forced Continuous Threshold
Forced Continuous Pin Current
Burst Inhibit (Constant Frequency)
Threshold
Undervoltage Reset
Feedback Overvoltage Lockout
Sense Pins Total Source Current
Start-Up Threshold
Keep-Alive Power-On Threshold
Normal
Standby
Shutdown Supply Current
TAPE AND REEL
LTC3780EG#TRPBF
LTC3780IG#TRPBF
LTC3780EUH#TRPBF
LTC3780IUH#TRPBF
TAPE AND REEL
LTC3780EG#TR
LTC3780IG#TR
LTC3780MPG#TR
LTC3780EUH#TR
LTC3780IUH#TR
http://www.linear.com/leadfree/
PART MARKING
LTC3780EG
LTC3780IG
3780
3780I
PART MARKING
LTC3780EG
LTC3780IG
LTC3780MPG
3780
3780I
http://www.linear.com/tapeandreel/
CONDITIONS
I
–55°C ≤ T ≤ 125°C
(Note 3)
(Note 3)
V
I
(Note 8)
(Note 4)
V
Measured at FCB Pin
V
Measured at V
V
V
V
TH
TH
IN
FCB
IN
SENSE
STBYMD
STBYMD
∆I
∆I
V
V
RUN
RUN
= 1.2V, –40°C ≤ T ≤ 85°C (Note 3)
= 1.2V, Sink/Source = 3μA (Note 3)
= 4V to 30V, I
Falling
TH
TH
The
= 0.85V
–
= 1.2V to 0.7V
= 1.2V to 1.8V
A
= 0V, V
= 0V, V
= V
Rising
Rising, V
= 25°C. V
l
SENSE
denotes the specifi cations which apply over the full operating
STBYMD
STBYMD
OSENSE
TH
+
RUN
= 0V
= 1.2V (Note 3)
IN
Pin
PACKAGE DESCRIPTION
24-Lead Plastic SSOP
24-Lead Plastic SSOP
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
PACKAGE DESCRIPTION
24-Lead Plastic SSOP
24-Lead Plastic SSOP
24-Lead Plastic SSOP
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
> 2V
= Open
= 0V
= 15V unless otherwise noted.
l
l
l
l
l
0.792
0.792
–0.30
0.76
0.84
MIN
0.4
0.800
0.800
0.002
0.800
–0.18
2400
1500
–380
–0.1
0.32
0.86
1.25
TYP
0.6
5.3
3.8
0.7
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 125°C
–5
55
0.1
LTC3780
0.808
0.811
MAX
–0.5
0.02
0.84
–0.1
0.88
–50
5.5
70
0.5
4
UNITS
3780fe
3
MHz
%/V
mS
nA
μA
μA
μA
μA
μA
%
%
V
V
V
V
V
V
V
V