LTC3862 LINER [Linear Technology], LTC3862 Datasheet - Page 3

• Manufacturer Part Number: LTC3862
• Description: Multi-Phase Current Mode Step-Up DC/DC Controller
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
SYMBOL
Supply Input and INTV
V
I
INTV
dV
dV
V
3V8
Switcher Control Loop
V
dV
dV
g
f
V
I
I
V
I
V
V
RUN/Soft-Start
I
V
V
I
R
Oscillator
f
V
operating junction temperature range, otherwise specifi cations are at T
otherwise noted.
VIN
0dB
ITH
FB
SENSE(ON)
RUN
SS
OSC
m
IN
UVLO
FB
ITH
ITH(PSKIP)
SENSE(MAX)
SENSE(MATCH)
RUN
RUNHYS
FREQ
SS
INTVCC(LINE)
INTVCC(LOAD)
FB
FB
/dV
/dV
CC
IN
ITH
PARAMETER
V
V
LDO Regulator Output Voltage
Line Regulation
Load Regulation
INTV
LDO Regulator Output Voltage
Reference Voltage
Feedback Voltage V
Feedback Voltage Load Regulation
Transconductance Amplifi er Gain
Error Amplifi er Unity-Gain Crossover
Frequency
Error Amplifi er Maximum Output Voltage
(Internally Clamped)
Error Amplifi er Minimum Output Voltage
Error Amplifi er Output Source Current
Error Amplifi er Output Sink Current
Error Amplifi er Input Bias Currents
Pulse Skip Mode Operation ITH Pin Voltage
SENSE Pin Current
Maximum Current Sense Input Threshold
CH1 to CH2 Maximum Current Sense
Threshold Matching
RUN Source Current
High Level RUN Channel Enable Threshold
RUN Threshold Hysteresis
SS Pull-Up Current
SS Pull-Down Resistance
Oscillator Frequency
Oscillator Frequency Range
Nominal FREQ Pin Voltage
IN
IN
Normal Mode, No Switching
Shutdown
Supply Voltage Range
Supply Current
CC
CC
UVLO Voltage
Linear Regulator
IN
Line Regulation
CONDITIONS
(Note 5)
V
6V < V
Load = 0mA to 20mA
Rising INTV
Falling INTV
V
V
V
V
(Note 7)
V
V
(Note 6)
Rising ITH Voltage (Note 6)
Hysteresis
V
(Note 3)
V
(V
V
V
V
V
R
R
R
RUN
ITH
IN
ITH
ITH
FB
FB
SLOPE
SLOPE
RUN
RUN
SS
RUN
FREQ
FREQ
FREQ
SENSE1
(Notes 2, 3) The
= 4V to 36V (Note 6)
= 1V, No Load
= 1.5V, No Load
= 0V
= 0.8V (Note 6)
= 0.5V to 1.2V (Note 6)
= 0.8V (Note 6), ITH Pin Load = ±5μA
= 0V
= 0V
= 1.5V
= 0V
IN
= 45.6k
= 45.6k
= 45.6k
= Float, Low Duty Cycle
= Float, Low Duty Cycle (Note 3)
< 36V
– V
I-Grade and H-Grade (Note 3)
CC
CC
SENSE2
A
)
= 25°C. V
l
E-Grade (Note 3)
denotes the specifi cations which apply over the full
IN
= 12V, RUN = 2V and SS = open, unless
l
l
l
l
l
l
l
l
1.210
1.199
MIN
–10
280
260
4.8
–2
65
60
75
4
±0.002
0.002
1.223
1.223
0.275
1.223
0.01
0.01
–0.5
1.22
TYP
660
–30
–50
300
300
1.8
5.0
3.3
2.9
3.8
1.8
2.7
30
50
30
25
75
75
–5
80
–5
10
LTC3862
1.235
1.248
–200
MAX
0.02
0.01
320
340
500
3.0
5.2
0.1
36
80
85
90
10
2
UNITS
μMho
3862fb
3
MHz
%/V
%/V
kHz
kHz
kHz
mA
mV
mV
mV
mV
mV
mV
kΩ
μA
μA
μA
nA
μA
μA
μA
μA
%
%
V
V
V
V
V
V
V
V
V
V
V