(BST1-LSP), (BST1-LSN) .............................................6V Storage Temperature Range ................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
BG1
BST1
SW1
TG1
LSP
LSN
V
IN
INTV
CC
EN/UVLO
1
2
3
4
5
6
7
8
9
29
GND
28 BG2
SW1
27 BST2
26 SW2
25 TG2
24 V
OUT
23 LOADTG
22 SYNC/SPRD
21 RT
20 V
C
19 FB
18 SS
17
PGOOD
16 ISMON
15 ISN
TG1 1
LSP 2
LSN 3
V
IN
4
INTV
CC
5
EN/UVLO 6
TEST 7
LOADEN 8
9 10 11 12 13 14
V
REF
ISP
ISMON
CTRL
ISN
PGOOD
29
GND
TOP VIEW
BST1
BST2
SW2
22 TG2
21 V
OUT
20 LOADTG
19 SYNC/SPRD
18 RT
17 V
C
16 FB
15 SS
BG1
BG2
28 27 26 25 24 23
TEST 10
LOADEN 11
V
REF
12
CTRL 13
ISP 14
FE PACKAGE
28-LEAD PLASTIC TSSOP
θ
JA
= 30°C/W,
θ
JC
= 5°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
UFD PACKAGE
28-LEAD (4mm
×
5mm) PLASTIC QFN
θ
JA
= 43°C/W,
θ
JC
= 3.4°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT8390EFE#PBF
LT8390IFE#PBF
LT8390JFE#PBF
LT8390HFE#PBF
LT8390EUFD#PBF
LT8390IUFD#PBF
LT8390JUFD#PBF
LT8390HUFD#PBF
TAPE AND REEL
LT8390EFE#TRPBF
LT8390IFE#TRPBF
LT8390JFE#TRPBF
LT8390HFE#TRPBF
LT8390EUFD#TRPBF
LT8390IUFD#TRPBF
LT8390JUFD#TRPBF
LT8390HUFD#TRPBF
PART MARKING*
LT8390FE
LT8390FE
LT8390FE
LT8390FE
8390
8390
8390
8390
PACKAGE DESCRIPTION
28-Lead Plastic TSSOP
28-Lead Plastic TSSOP
28-Lead Plastic TSSOP
28-Lead Plastic TSSOP
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
2
Rev. C
For more information
www.analog.com
LT8390
ORDER INFORMATION
LEAD FREE FINISH
AUTOMOTIVE PRODUCTS**
LT8390EFE#WPBF
LT8390IFE#WPBF
LT8390JFE#WPBF
LT8390HFE#WPBF
LT8390EUFD#WPBF
LT8390IUFD#WPBF
LT8390JUFD#WPBF
LT8390HUFD#WPBF
LT8390EFE#WTRPBF
LT8390IFE#WTRPBF
LT8390JFE#WTRPBF
LT8390HFE#WTRPBF
LT8390EUFD#WTRPBF
LT8390IUFD#WTRPBF
LT8390JUFD#WTRPBF
LT8390HUFD#WTRPBF
LT8390FE
LT8390FE
LT8390FE
LT8390FE
8390
8390
8390
8390
28-Lead Plastic TSSOP
28-Lead Plastic TSSOP
28-Lead Plastic TSSOP
28-Lead Plastic TSSOP
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°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.
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
IN
= 12V, V
EN/UVLO
= 1.5V unless otherwise noted.
PARAMETER
Supply
V
IN
Operating Voltage Range
V
IN
Quiescent Current
V
OUT
Voltage Range
V
OUT
Quiescent Current
Linear Regulators
INTV
CC
Regulation Voltage
INTV
CC
Load Regulation
INTV
CC
Line Regulation
INTV
CC
Current Limit
INTV
CC
Dropout Voltage (V
IN
– INTV
CC
)
INTV
CC
Undervoltage Lockout Threshold
INTV
CC
Undervoltage Lockout Hysteresis
V
REF
Regulation Voltage
V
REF
Load Regulation
V
REF
Line Regulation
V
REF
Current Limit
V
REF
Undervoltage Lockout Threshold
V
REF
Undervoltage Lockout Hysteresis
CONDITIONS
l
ELECTRICAL CHARACTERISTICS
MIN
4
TYP
MAX
60
2
2.8
60
0.5
0.5
60
5.15
4
4
160
3.64
2.03
1
0.2
3.2
1.90
UNITS
V
µA
µA
mA
V
µA
µA
µA
V
%
%
mA
mV
V
V
V
%
%
mA
V
mV
V
EN/UVLO
= 0.3V
V
EN/UVLO
= 1.1V
Not Switching
l
1
270
2.1
0
20
4.85
0.1
0.1
40
5.0
1
1
110
160
3.54
0.24
2.00
0.4
0.1
2.5
1.84
50
V
EN/UVLO
= 0.3V, V
OUT
= 12V
V
EN/UVLO
= 1.1V, V
OUT
= 12V
Not Switching, V
OUT
= 12V
I
INTVCC
= 20mA
I
INTVCC
= 0mA to 80mA
I
INTVCC
= 20mA, V
IN
= 6V to 60V
V
INTVCC
= 4.5V
I
INTVCC
= 20mA, V
IN
= 4V
Falling
I
VREF
= 100µA
I
VREF
= 0mA to 1mA
I
VREF
= 100µA, V
IN
= 4V to 60V
V
REF
= 1.8V
Falling
l
80
3.44
1.97
2
1.78
For more information
www.analog.com
3
Rev. C
LT8390
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
IN
= 12V, V
EN/UVLO
= 1.5V unless otherwise noted.
PARAMETER
Control Inputs/Outputs
EN/UVLO Shutdown Threshold
EN/UVLO Enable Threshold
EN/UVLO Enable Hysteresis
EN/UVLO Hysteresis Current
CTRL Input Bias Current
CTRL Latch-Off Threshold
CTRL Latch-Off Hysteresis
Load Switch Driver
LOADEN Threshold
LOADEN Hysteresis
Minimum V
OUT
for LOADTG to be On
LOADTG On Voltage V
(VOUT-LOADTG)
LOADTG Off Voltage V
(VOUT-LOADTG)
LOADEN to LOADTG Turn On Propagation Delay
LOADEN to LOADTG Turn Off Propagation Delay
LOADTG Turn On Fall Time
LOADTG Turn Off Rise Time
Error Amplifier
Full Scale Current Regulation V
(ISP-ISN)
1/10th Current Regulation V
(ISP-ISN)
ISMON Monitor Output V
ISMON
ISP/ISN Input Common Mode Range
ISP/ISN Low Side to High Side Switchover Voltage
ISP/ISN High Side to Low Side Switchover Voltage
ISP Input Bias Current
ISN Input Bias Current
ISP/ISN Current Regulation Amplifier g
m
FB Regulation Voltage
FB Line Regulation
FB Load Regulation
FB Voltage Regulation Amplifier g
m
FB Input Bias Current
V
C
Output Impedance
V
C
Standby Leakage Current
CONDITIONS
l
ELECTRICAL CHARACTERISTICS
MIN
0.3
1.196
–0.1
2.2
–0.1
0
285
TYP
0.6
1.220
13
0
2.5
0
20
300
25
1.4
220
2.4
5
0
90
40
300
10
100
100
10
10
1.25
0.35
0.25
1.8
1.7
23
–10
0
23
–10
0
2000
1.00
0.2
0.2
660
10
10
0
MAX
1.0
1.244
0.1
2.8
0.1
50
315
UNITS
V
V
mV
µA
µA
µA
nA
mV
mV
V
mV
V
V
V
ns
ns
ns
ns
mV
mV
mV
mV
V
V
V
V
V
V
µA
µA
µA
µA
µA
µA
µs
V
%
%
µS
nA
MΩ
nA
Falling
V
EN/UVLO
= 0.3V
V
EN/UVLO
= 1.1V
V
EN/UVLO
= 1.3V
V
CTRL
= 0.75V, Current Out of Pin
Falling
l
l
Rising
V
LOADEN
= 5V
V
OUT
= 12V
V
OUT
= 12V
C
LOADTG
= 3.3nF to V
OUT
, 50% to 50%
C
LOADTG
= 3.3nF to V
OUT
, 50% to 50%
C
LOADTG
= 3.3nF to V
OUT
, 10% to 90%
C
LOADTG
= 3.3nF to V
OUT
, 90% to 10%
V
CTRL
= 2V, V
ISP
= 12V
V
CTRL
= 2V, V
ISP
= 0V
V
CTRL
= 0.35V, V
ISP
= 12V
V
CTRL
= 0.35V, V
ISP
= 0V
V
(ISP-ISN)
= 100mV, V
ISP
= 12V/0V
V
(ISP-ISN)
= 10mV, V
ISP
= 12V/0V
V
(ISP-ISN)
= 0mV, V
ISP
= 12V/0V
V
ISP
= V
ISN
V
ISP
= V
ISN
V
LOADEN
= 5V, V
ISP
= V
ISN
= 12V
V
LOADEN
= 5V, V
ISP
= V
ISN
= 0V
V
EN/UVLO
= 0V, V
ISP
= V
ISN
= 12V or 0V
V
LOADEN
= 5V, V
ISP
= V
ISN
= 12V
V
LOADEN
= 5V, V
ISP
= V
ISN
= 0V
V
EN/UVLO
= 0V, V
ISP
= V
ISN
= 12V or 0V
V
C
= 1.2V
V
IN
= 4V to 60V
l
1.3
1.5
3
5.4
0.1
4.6
–0.1
l
l
l
l
l
l
l
l
97
97
8
8
1.20
0.30
0.20
0
103
103
12
12
1.30
0.40
0.30
60
l
0.985
1.015
0.5
0.8
40
10
FB in Regulation, Current Out of Pin
V
C
= 1.2V, V
LOADEN
= 0V
–10
4
Rev. C
For more information
www.analog.com
LT8390
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
IN
= 12V, V
EN/UVLO
= 1.5V unless otherwise noted.
PARAMETER
Current Comparator
Maximum Current Sense Threshold V
(LSP-LSN)
Reverse Current Sense Threshold V
(LSP-LSN)
LSP Pin Bias Current
LSN Pin Bias Current
Fault
FB Overvoltage Threshold (V
FB
)
FB Overvoltage Hysteresis
FB Short Threshold (V
FB
)
FB Short Hysteresis
ISP/ISN Over Current Threshold V
(ISP-ISN)
PGOOD
Upper Threshold Offset from V
FB
PGOOD
Lower Threshold Offset from V
FB
PGOOD
Pull-Down Resistance
SS Hard Pull-Down Resistance
SS Pull-Up Current
SS Pull-Down Current
SS Fault Latch-Off Threshold
SS Fault Reset Threshold
Oscillator
RT Pin Voltage
Switching Frequency
SYNC Frequency
SYNC/SPRD Input Bias Current
SYNC/SPRD Threshold Voltage
Highest Spread Spectrum Above Oscillator Frequency
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