LTC3872ETS8#TRMPBF Linear Technology, LTC3872ETS8#TRMPBF Datasheet - Page 3

• Manufacturer Part Number: LTC3872ETS8#TRMPBF
• Description: IC DC/DC CNTRLR TSOT23-8
• Manufacturer: Linear Technology
• Type: Step-Up (Boost)r

Specifications of LTC3872ETS8#TRMPBF

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.2 ~ 60 V
• Current - Output: 10A
• Frequency - Switching: 550kHz
• Voltage - Input: 2.75 ~ 9.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-8, TSOT-8
• Primary Input Voltage: 9.8V
• No. Of Outputs: 1
• Output Voltage: 60V
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Supply Voltage Range: 2.75V To 9.8V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LTC3872ETS8#TRMPBF; LTC3872ETS8#TRMPBFTR

elecTrical characTerisTics
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.
Note 2: The LTC3872 is tested under pulsed load conditions such that
T
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls. The LTC3872I is guaranteed
over the –40°C to 125°C operating junction temperature range. The
LTC3872H is guaranteed over the full –40°C to 150°C operating junction
temperature range. The maximum ambient temperature consistent with
these specifications is determined by specific operating conditions in
conjunction with board layout, the rated package thermal impedance and
other environmental factors.
temperature range, otherwise specifications are at T
PARAMETER
Input Voltage Range
Input DC Supply Current
Undervoltage Lockout Threshold
Shutdown Threshold (at RUN/SS)
Regulated Feedback Voltage
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
V
RUN/SS Pull Up Current
Oscillator Frequency
Gate Drive Rise Time
Gate Drive Fall Time
Peak Current Sense Voltage
Default Internal Soft-Start Time
J
≈ T
FB
Normal Operation
Shutdown
UVLO
Normal Operation
Input Current
A
. The LTC3872E is guaranteed to meet performance specifications
CONDITIONS
Typicals at V
2.75V ≤ V
V
V
V
V
V
V
(Note 5) LTC3872E
LTC3872I and LTC3872H
2.75V < V
V
V
(Note 5)
V
V
C
C
IPRG = GND (Note 6)
IPRG = Float
IPRG = V
RUN/SS
IN
IN
IN
RUN/SS
RUN/SS
ITH
ITH
RUN/SS
FB
LOAD
LOAD
< UVLO Threshold
Rising
Falling
= 1.2V
= 1.6V (Note 5)
= 1V (Note 5)
= 3000pF
= 3000pF
A
= 0V
Falling
Rising
= 0
= 25°C (Note 2). V
IN
IN
IN
≤ 9.8V, V
< 9V (Note 5)
IN
The
= 4.2V (Note 4)
l
ITH
denotes the specifications which apply over the specified operating
= 1.3V
Note 3: T
dissipation P
Note 4: The dynamic input supply current is higher due to power MOSFET
gate charging (Q
Note 5: The LTC3872 is tested in a feedback loop which servos V
the reference voltage with the I
range (0.7V ≤ V
Note 6: Rise and fall times are measured at 10% and 90% levels.
LTC3872E
LTC3872I
LTC3872H
LTC3872E
LTC3872I
LTC3872H
LTC3872E
LTC3872I
LTC3872H
IN
LTC3872TS8: T
LTC3872DDB: T
= 4.2V unless otherwise noted.
J
is calculated from the ambient temperature T
D
according to the following formula:
ITH
G
• f
≤ 1.9V, midpoint = 1.3V).
J
J
OSC
= T
= T
). See Applications Information.
A
A
+ (P
+ (P
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
D
D
TH
• 195°C/W)
• 76°C/W)
pin forced to the midpoint of its voltage
1.182
1.178
MIN
2.75
2.05
0.65
0.35
500
145
135
130
240
225
215
2.3
0.6
80
70
65
–0.05
2.45
0.85
0.95
0.14
0.05
TYP
250
550
100
100
100
170
170
170
270
270
270
2.3
1.2
1.2
0.7
20
25
40
40
8
1
LTC3872
A
1.218
1.218
and power
MAX
2.75
2.55
1.05
1.15
1.25
400
650
120
120
120
195
195
195
290
290
290
9.8
20
35
50
FB
to
UNITS
mV/V
3872fb
3
kHz
mV
mV
mV
mV
mV
mV
mV
mV
mV
ms
µA
µA
µA
nA
µA
ns
ns
%
%
V
V
V
V
V
V
V