LTC3770EUH#TR Linear Technology, LTC3770EUH#TR Datasheet - Page 3

• Manufacturer Part Number: LTC3770EUH#TR
• Manufacturer: Linear Technology

Specifications of LTC3770EUH#TR

• Lead Free Status / RoHS Status: Not Compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are T
SYMBOL
Main Control Loop
I
V
V
V
V
I
I
g
V
I
t
t
t
V
V
ΔV
V
V
V
V
TG R
TG R
BG R
BG R
TG t
TG t
BG t
BG t
Q
SS/TRACK
FB
FCB
ON
ON(MIN)
OFF(MIN)
m(EA)
FB
FB(LINEREG)
FB(LOADREG)
RUN
FCB
SENSE(MAX)
SENSE(MIN)
IN(UVLO
IN(UVLO
MGN(TH)
MPGM
FB(OV)
r
f
r
f
UP
DOWN
UP
DOWN
+
–
)
)
PARAMETER
Input DC Supply Current
Feedback Voltage Accuracy (Note 3)
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
Run Pin On Threshold
Soft-Start Charging Current
Feedback Pin Input Current
Error Amplifi er Transconductance
Forced Continuous Threshold
Forced Continuous Pin Current
On-Time
Minimum On-Time
Minimum Off-Time
Maximum Current Sense Threshold
V
Minimum Current Sense Threshold
V
Output Overvoltage Fault Threshold Offset
Undervoltage Lockout
Undervoltage Lockout
MARGIN0, MARGIN1 Input Thresholds
MPGM Pin Voltage
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
SENSE
SENSE
Normal Operation
Shutdown Supply Current
–
–
– V
– V
SENSE
SENSE
+
+
A
= 25°C. V
CONDITIONS
V
V
V
I
V
V
I
V
I
I
I
Tested with a Square Wave (Note 5)
V
V
V
V
V
V
V
V
TG High
TG Low
BG High
BG Low
C
C
C
C
TH
TH
ON
ON
ON
REFIN
REFIN
IN
RUN
SS/TRACK
FCB
RNG
RNG
RNG
RNG
RNG
RNG
IN
IN
LOAD
LOAD
LOAD
LOAD
= 0.5V to 1.9V (Note 3)
= 1.2V (Note 3)
= –60μA, V
= –60μA, V
= –180μA, V
= 4V to 30V, I
Falling
Rising
The
= 0V
Rising
= 1V, V
= 0V, V
= INTV
= 1V, V
= 0V, V
= INTV
= 3300pF
= 3300pF
= 3300pF
= 3300pF
IN
= V
= V
l
= 15V unless otherwise noted.
REFOUT
REFOUT
= 0V
denotes specifi cations which apply over the full operating
CC
CC
FB
FB
FB
FB
, V
, V
ON
ON
= V
= V
= V
= V
ON
; I
; I
TH
FB
FB
= 1.5V
= 0V
TH
TH
REFIN
REFIN
REFIN
REFIN
= 0V
= V
= V
= 1.2V (Note 3)
= 1.2V (0°C to 85°C)
= 1.2V
REFIN
REFIN
– 30mV
– 30mV
+ 30mV
+ 30mV
– 30mV
+ 30mV
l
l
l
l
l
l
l
l
0.596
0.594
–100
MIN
–1.1
0.57
210
113
228
90
50
1
1
7
–0.05
0.002
1300
–120
–1.4
1.18
–60
TYP
–20
250
115
250
133
268
–30
0.6
0.6
1.5
1.3
0.6
3.2
3.3
1.4
1.9
1.2
1.9
0.7
30
–1
50
67
20
20
20
20
10
LTC3770
0.604
0.606
2200
MAX
–0.3
–1.7
0.63
100
290
150
100
400
153
308
1.9
1.6
3.9
2.5
2.5
1.5
50
–2
84
13
4
3
UNITS
3770fc
3
%/V
mS
mV
mV
mV
mV
mV
mV
μA
μA
μA
nA
μA
ns
ns
ns
ns
ns
ns
ns
ns
%
%
Ω
Ω
Ω
Ω
V
V
V
V
V
V
V
V