(Notes 2, 3) ................................................–40 to 125°C
Storage Temperature Range.......................–65 to 125°C
Lead Temperature (Soldering, 10 sec)
MSE Only .......................................................... 300°C
PIN CONFIGURATION
TOP VIEW
PZ1
PZ2
CAP
V
IN
SW
1
2
3
4
5
11
GND
10 PGOOD
9 D0
8 D1
7 V
IN2
6 V
OUT
TOP VIEW
PZ1
PZ2
CAP
V
IN
SW
1
2
3
4
5
11
GND
10
9
8
7
6
PGOOD
D0
D1
V
IN2
V
OUT
DD PACKAGE
10-LEAD (3mm 3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 43°C/W,
θ
JC
= 7.5°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
MSE PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 125°C,
θ
JA
= 45°C/W,
θ
JC
= 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC3588EDD-1#PBF
LTC3588IDD-1#PBF
LTC3588EMSE-1#PBF
LTC3588IMSE-1#PBF
TAPE AND REEL
LTC3588EDD-1#TRPBF
LTC3588IDD-1#TRPBF
LTC3588EMSE-1#TRPBF
LTC3588IMSE-1#TRPBF
PART MARKING*
LFKY
LFKY
LTFKX
LTFKX
PACKAGE DESCRIPTION
10-Lead (3mm
×
3mm) Plastic DFN
10-Lead (3mm
×
3mm) Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to:
http://www.linear.com/packaging/
35881f
2
LTC3588-1
ELECTRICAL CHARACTERISTICS
SYMBOL
V
IN
I
VIN
PARAMETER
Input Voltage Range
V
IN
Quiescent Current
UVLO
Buck Enabled, Sleeping
Buck Enabled, Sleeping
Buck Enabled, Not Sleeping
V
IN
Undervoltage Lockout Threshold
The
l
denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
J
= 25°C. V
IN
= 5.5V unless otherwise specified.
CONDITIONS
Low Impedance Source on V
IN
V
IN
= 2.5V, Not PGOOD
V
IN
= 4.5V
V
IN
= 18V
I
SW
= 0A (Note 4)
V
IN
Rising
1.8V Output Selected; D1 = 0, D0 = 0
2.5V Output Selected; D1 = 0, D0 = 1
3.3V Output Selected; D1 = 1, D0 = 0
3.6V Output Selected; D1 = 1, D0 = 1
V
IN
Falling
1.8V Output Selected; D1 = 0, D0 = 0
2.5V Output Selected; D1 = 0, D0 = 1
3.3V Output Selected; D1 = 1, D0 = 0
3.6V Output Selected; D1 = 1, D0 = 1
l
l
l
l
l
l
l
l
l
MIN
TYP
MAX
18.0
UNITS
V
nA
nA
μA
μA
V
V
V
V
V
V
V
V
V
mA
mV
nA
V
450
950
1.7
150
3.77
3.77
4.73
4.73
2.66
2.66
3.42
3.75
19.0
25
350
400
4.04
4.04
5.05
5.05
2.87
2.87
3.67
4.02
20.0
700
1500
2.5
250
4.30
4.30
5.37
5.37
3.08
3.08
3.91
4.28
21.0
450
20
V
UVLO
V
SHUNT
I
SHUNT
V
IN
Shunt Regulator Voltage
Maximum Protective Shunt Current
Internal Bridge Rectifier Loss
(|V
PZ1
– V
PZ2
| – V
IN
)
Internal Bridge Rectifier Reverse
Leakage Current
Internal Bridge Rectifier Reverse
Breakdown Voltage
I
VIN
= 1mA
1ms Duration
I
BRIDGE
= 10μA
V
REVERSE
= 18V
I
REVERSE
= 1μA
1.8V Output Selected
Sleep Threshold
Wake-Up Threshold
2.5V Output Selected
Sleep Threshold
Wake-Up Threshold
3.3V Output Selected
Sleep Threshold
Wake-Up Threshold
3.6V Output Selected
Sleep Threshold
Wake-Up Threshold
As a Percentage of the Selected V
OUT
V
OUT
= 3.6V
V
SHUNT
30
V
OUT
Regulated Output Voltage
l
l
l
l
l
l
l
l
1.710
2.425
3.201
3.492
83
200
100
1.812
1.788
2.512
2.488
3.312
3.288
3.612
3.588
92
89
260
1.1
1.3
1.890
2.575
3.399
3.708
V
V
V
V
V
V
V
V
%
nA
mA
mA
Ω
Ω
%
V
PGOOD Falling Threshold
I
VOUT
I
PEAK
I
LOAD
R
P
R
N
V
IH(D0, D1)
V
IL(D0, D1)
I
IH(D0, D1)
I
IL(D0, D1)
Output Quiescent Current
Buck Peak Switch Current
Available Buck Output Current
Buck PMOS Switch On-Resistance
Buck NMOS Switch On-Resistance
Max Buck Duty Cycle
D0/D1 Input High Voltage
D0/D1 Input Low Voltage
D0/D1 Input High Current
D0/D1 Input Low Current
150
350
l
l
l
100
1.2
0.4
10
10
V
nA
nA
35881f
3
LTC3588-1
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 LTC3588E-1 is guaranteed to meet performance specifications
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 LTC3588I-1 is guaranteed
over the full –40°C to 125°C operating junction temperature range.
Note that the maximum ambient temperature is determined by specific
operating conditions in conjunction with board layout, the rated package
thermal resistance and other environmental factors.
Note 3:
T
J
is calculated from the ambient T
A
and power dissipation P
D
according to the following formula: T
J
= T
A
+ (P
D
•
θ
JA
).
Note 4:
Dynamic supply current is higher due to gate charge being
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