, SYNC Voltage . ..................................................6V
Operating Junction Temperature Range (Note 2)
LT8610AE/LT8610ABE ........................... –40 to 125°C
LT8610AI/LT8610ABI ............................. –40 to 125°C
LT8610AH/LT8610ABH .......................... –40 to 150°C
Storage Temperature Range ......................–65 to 150°C
PIN CONFIGURATION
LT8610A, LT8610AB
TOP VIEW
SYNC
TR/SS
RT
EN/UV
V
IN
V
IN
NC
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
FB
PG
BIAS
INTV
CC
BST
SW
SW
SW
SYNC
TR/SS
RT
EN/UV
V
IN
V
IN
NC
GND
1
2
3
4
5
6
7
8
LT8610A-3.3, LT8610A-5, LT8610AB-3.3, LT8610AB-5
TOP VIEW
16
15
14
13
12
11
10
9
V
OUT
PG
BIAS
INTV
CC
BST
SW
SW
SW
17
GND
17
GND
MSE PACKAGE
16-LEAD PLASTIC MSOP
θ
JA
= 40°C/W,
θ
JC(PAD)
= 10°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
MSE PACKAGE
16-LEAD PLASTIC MSOP
θ
JA
= 40°C/W,
θ
JC(PAD)
= 10°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT8610AEMSE#PBF
LT8610AEMSE-3.3#PBF
LT8610AEMSE-5#PBF
LT8610AIMSE#PBF
LT8610AIMSE-3.3#PBF
LT8610AIMSE-5#PBF
LT8610AHMSE#PBF
LT8610AHMSE-3.3#PBF
LT8610AHMSE-5#PBF
LT8610ABEMSE#PBF
LT8610ABEMSE-3.3#PBF
LT8610ABEMSE-5#PBF
LT8610ABIMSE#PBF
LT8610ABIMSE-3.3#PBF
LT8610ABIMSE-5#PBF
LT8610ABHMSE#PBF
LT8610ABHMSE-3.3#PBF
LT8610ABHMSE-5#PBF
TAPE AND REEL
LT8610AEMSE#TRPBF
LT8610AEMSE-3.3#TRPBF
LT8610AEMSE-5#TRPBF
LT8610AIMSE#TRPBF
LT8610AIMSE-3.3#TRPBF
LT8610AIMSE-5#TRPBF
LT8610AHMSE#TRPBF
LT8610AHMSE-3.3#TRPBF
LT8610AHMSE-5#TRPBF
LT8610ABEMSE#TRPBF
LT8610ABEMSE-3.3#TRPBF
LT8610ABEMSE-5#TRPBF
LT8610ABIMSE#TRPBF
LT8610ABIMSE-3.3#TRPBF
LT8610ABIMSE-5#TRPBF
LT8610ABHMSE#TRPBF
LT8610ABHMSE-3.3#TRPBF
LT8610ABHMSE-5#TRPBF
PART MARKING*
8610A
610A33
8610A5
8610A
610A33
8610A5
8610A
610A33
8610A5
8610AB
10AB33
610AB5
8610AB
10AB33
610AB5
8610AB
10AB33
610AB5
PACKAGE DESCRIPTION
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
–40°C to 150°C
2
Rev. B
For more information
www.analog.com
LT8610A/LT8610AB Series
ORDER INFORMATION
LEAD FREE FINISH
AUTOMOTIVE PRODUCTS**
LT8610AEMSE#WPBF
LT8610AIMSE#WPBF
LT8610AHMSE#WPBF
LT8610ABEMSE#WPBF
LT8610ABIMSE#WPBF
LT8610ABHMSE#WPBF
LT8610AEMSE#WTRPBF
LT8610AIMSE#WTRPBF
LT8610AHMSE#WTRPBF
LT8610ABEMSE#WTRPBF
LT8610ABIMSE#WTRPBF
LT8610ABHMSE#WTRPBF
8610A
8610A
8610A
8610AB
8610AB
8610AB
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
**Versions
of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These
models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your
local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for
these models.
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum Input Voltage
V
IN
Quiescent Current
CONDITIONS
(Note 4)
V
EN/UV
= 0V
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
MIN
l
l
TYP
2.9
1.0
1.0
1.7
1.7
0.26
24
210
24
210
60
540
55
500
100
790
80
730
MAX
3.4
3
8
4
10
0.5
50
350
50
350
120
900
100
800
180
1200
150
1100
0.976
0.982
3.32
3.34
5.03
5.06
0.02
0.02
0.02
20
UNITS
V
µA
µA
µA
µA
mA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
V
V
V
V
V
V
%/V
%/V
%/V
nA
V
EN/UV
= 2V, Not Switching, V
SYNC
= 0V
l
V
EN/UV
= 2V, Not Switching, V
SYNC
= 2V
V
IN
Current in Regulation
V
OUT
= 0.97V, V
IN
= 6V, Output Load = 100µA (LT8610A)
V
OUT
= 0.97V, V
IN
= 6V, Output Load = 1mA (LT8610A)
V
OUT
= 0.97V, V
IN
= 6V, Output Load = 100µA (LT8610AB)
V
OUT
= 0.97V, V
IN
= 6V, Output Load = 1mA (LT8610AB)
V
OUT
= 3.3V, V
IN
= 8V, Output Load = 100µA (LT8610A-3.3)
V
OUT
= 3.3V, V
IN
= 8V, Output Load = 1mA (LT8610A-3.3)
V
OUT
= 3.3V, V
IN
= 8V, Output Load = 100µA (LT8610AB-3.3)
V
OUT
= 3.3V, V
IN
= 8V, Output Load = 1mA (LT8610AB-3.3)
V
OUT
= 5V, V
IN
= 8V, Output Load = 100µA (LT8610A-5)
V
OUT
= 5V, V
IN
= 8V, Output Load = 1mA (LT8610A-5)
V
OUT
= 5V, V
IN
= 8V, Output Load = 100µA (LT8610AB-5)
V
OUT
= 5V, V
IN
= 8V, Output Load = 1mA (LT8610AB-5)
V
IN
= 6V, I
LOAD
= 0.5A
V
IN
= 6V, I
LOAD
= 0.5A
V
IN
= 8V, I
LOAD
= 0.5A
V
IN
= 8V, I
LOAD
= 0.5A
V
IN
= 8V, I
LOAD
= 0.5A
V
IN
= 8V, I
LOAD
= 0.5A
V
IN
= 4V to 42V, I
LOAD
= 1A
V
IN
= 4V to 42V, I
LOAD
= 1A
V
IN
= 6V to 42V, I
LOAD
= 1A
V
FB
= 1V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
V
IN
Current in Regulation
Feedback Reference Voltage
(LT8610A/LT8610AB)
Output Voltage
(LT8610A-3.3/LT8610AB-3.3)
Output Voltage
(LT8610A-5/LT8610AB-5)
Feedback Voltage Line Regulation
(LT8610A/LT8610AB)
Voltage Line Regulation
(LT8610A-3.3/LT8610AB-3.3)
Voltage Line Regulation
(LT8610A-5/LT8610AB-5)
Feedback Pin Input Current
(LT8610A/LT8610AB)
0.964
0.958
3.28
3.26
4.97
4.94
0.970
0.970
3.30
3.30
5.00
5.00
0.004
0.004
0.004
–20
For more information
www.analog.com
3
Rev. B
LT8610A/LT8610AB Series
ELECTRICAL CHARACTERISTICS
PARAMETER
Internal Feedback Resistor Divider
(LT8610A-3.3/LT8610AB-3.3)
Internal Feedback Resistor Divider
(LT8610A-5/LT8610AB-5)
INTV
CC
Voltage
INTV
CC
Undervoltage Lockout
BIAS Pin Current Consumption
Minimum On-Time
Minimum Off-Time
Oscillator Frequency
R
T
= 221k, I
LOAD
= 1A
R
T
= 60.4k, I
LOAD
= 1A
R
T
= 18.2k, I
LOAD
= 1A
I
SW
= 1A
LT8610A
LT8610AB
V
INTVCC
= 3.4V
V
IN
= 42V, V
SW
= 0V, 42V
EN/UV Rising
V
EN/UV
= 2V
V
FB
Falling
V
FB
Rising
V
PG
= 3.3V
V
PG
= 0.1V
SYNC Falling
SYNC Rising
V
SYNC
= 6V
l
l
l
l
l
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
CONDITIONS
MIN
TYP
14.3
12.5
I
LOAD
= 0mA, V
BIAS
= 0V
I
LOAD
= 0mA, V
BIAS
= 3.3V
V
BIAS
= 3.3V, I
LOAD
= 1A, 2MHz
I
LOAD
= 1A, SYNC = 0V
I
LOAD
= 1A, SYNC = 3.3V
l
l
MAX
UNITS
MΩ
MΩ
3.23
3.25
2.5
15
15
180
665
1.85
5
5
3.4
–1.5
0.94
–20
6
–12
–40
3.4
3.29
2.6
9
30
30
95
210
700
2.00
120
6.7
6.7
65
4.3
1.0
40
3.57
3.35
2.7
45
45
125
240
735
2.15
8
8
5.4
1.5
1.06
20
V
V
V
mA
ns
ns
ns
kHz
kHz
MHz
mΩ
A
A
mΩ
A
µA
V
mV
nA
%
%
%
nA
Ω
V
V
nA
µA
Ω
Top Power NMOS On-Resistance
Top Power NMOS Current Limit
Bottom Power NMOS On-Resistance V
INTVCC
= 3.4V, I
SW
= 1A
Bottom Power NMOS Current Limit
SW Leakage Current
EN/UV Pin Threshold
EN/UV Pin Hysteresis
EN/UV Pin Current
PG Upper Threshold Offset from V
FB
PG Lower Threshold Offset from V
FB
PG Hysteresis
PG Leakage
PG Pull-Down Resistance
SYNC Threshold
SYNC Pin Current
TR/SS Source Current
TR/SS Pull-Down Resistance
Fault Condition, TR/SS = 0.1V
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 LT8610AE/LT8610ABE is guaranteed to meet performance
specifications from 0°C to 125°C junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization, and correlation with statistical process controls.
The LT8610AI/LT8610ABI is guaranteed over the full –40°C to 125°C
operating junction temperature range. The LT8610AH is guaranteed
over the full –40°C to 150°C operating junction temperature range. High
junction temperatures degrade operating lifetimes. Operating lifetime is
derated at junction temperatures greater than 125°C.
9.0
–9.0
1.3
12
–6
40
680
0.8
1.6
–40
1.0
2.0
230
1.1
2.0
2000
1.4
2.4
40
3.2
Note 3:
This IC includes overtemperature protection that is intended to
protect the device during overload conditions. Junction temperature will
exceed 150°C when overtemperature protection is active. Continuous
operation above the specified maximum operating junction temperature
will reduce lifetime.
Note 4:
For fixed output voltage versions, minimum input voltage will be
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