LT3587
ELECTRICAL CHARACTERISTICS
PARAMETER
Boost1
CAP1 Bias Current
FB1 Reference Voltage
V
OUT1
Output Voltage
SW1 Current Limit
SW1 V
CESAT
SW1 Leakage Current
EN/SS1 for Full Inductor Current
EN/SS1 Shutdown Voltage Threshold
EN/SS1 Pin Bias Current
V
OUT1
Current Limit
CAP1 to V
OUT1
On-Resistance (R
DISC1
)
V
OUT1
Disconnect Leakage
Inverter
FB2 Reference Voltage
Output Voltage
SW2 Current Limit
SW2 V
CESAT
SW2 Leakage Current
FB1 Threshold to Start Negative Channel
Boost3
CAP3 Bias Current
Boost3 Programmed Current
V
FB3
Reference Voltage
V
OUT3
Output Voltage
SW3 Current Limit
SW3 V
CESAT
SW3 Leakage Current
EN/SS3 for Full Inductor Current
EN/SS3 Shutdown Voltage Threshold
EN/SS3 Pin Bias Current
V
OUT3
Current Limit
CAP3 to V
OUT3
On Resistance (R
DISC3
)
V
OUT3
Disconnect Leakage
CAP3 Pin Overvoltage Clamp
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.
V
EN/SS3
= 0V
V
CAP3
= 15V, V
IFB3
= 0V
V
CAP3
= 15V, I
VOUT3
= 20mA
V
VIN
= V
CAP3
= 6V, V
VOUT3
= 0V
27
I
SW3
= 200mA
V
SW3
= 15V
V
VFB3
= V
IFB3
= 0.6V
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
VIN
= 3.6V, V
EN/SS1
= V
EN/SS3
= V
VIN
unless otherwise noted (Note 2, 3).
CONDITIONS
V
CAP1
= 15V, V
OUT1
= Open
l
MIN
TYP
60
MAX
150
1.25
15.75
UNITS
μA
V
V
mA
mV
1.19
14.25
800
1.22
15
990
200
0.1
R
FB1
= 1MΩ
I
SW1
= 400mA
V
SW1
= 15V
V
FB1
= 1.1V, V
FB2
= 0.1V
l
5
2.5
μA
V
V
μA
mA
Ω
μA
mV
V
mA
mV
l
0.2
–0.5
100
–1
155
5
0.1
–10
–7.5
900
5
–8
1090
250
0.1
87
70
5
90
150
22
0.83
16
8
1
20
–8.5
–1.5
V
EN/SS1
= 0V
V
CAP1
= 15V
V
CAP1
= 15V, I
VOUT1
= 50mA
V
VIN
= V
CAP1
= 6V, V
VOUT1
= 0V
R
FB2
= 1MΩ
I
SW2
= 600mA
V
SW2
= 15V
Percent of Final Regulation Value
V
CAP3
= 15V, V
OUT3
= Open
R
IFB3
= 8.06kΩ
R
VFB3
= 1MΩ, I
VOUT3
= 20mA
R
VFB3
= 1MΩ, I
VOUT3
= 20mA
l
μA
%
μA
mA
V
V
mA
mV
l
l
l
18
0.77
14
400
20
0.8
15
480
250
0.1
5
2
μA
V
V
μA
mA
Ω
μA
V
0.2
–0.5
70
–1
110
10
0.1
29
15
1
31
–1.5
Note 2:
All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3:
The LT3587 is guaranteed to meet specified performance from
0°C to 125°C. Specifications over the –40°C to 125°C operating range are
assured by design, characterization and correlation with statistical process
controls.
3587fc
3
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