Datasheet
2
LTC1470/LTC1471
14701fa
ABSOLUTE MAXIMUM RATINGS
W
WW
U
3.3V Supply Voltage (3V
IN
) (Note 2)........................ 7V
5V Supply Voltage (5V
IN
) (Note 2)............................ 7V
Enable Input Voltage ..................... 5V
IN
to (GND – 0.3V)
Output Voltage (OFF) (Note 2) ......... 7V to (GND – 0.3V)
Output Short-Circuit Duration .......................... Indefinite
Operating Temperature
LTC1470C .............................................. 0°C to 70°C
LTC1470E (Note 7) ............................. –40°C to 85°C
Junction Temperature.......................................... 100°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
LTC1471CS
1470
1470E
S8 PART MARKING
ORDER PART
NUMBER
T
JMAX
= 100°C, θ
JA
= 100°C/W
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
3V
IN
3.3V Supply Voltage Range 2.70 3.60 V
5V
IN
5V Supply Voltage Range 4.75 5.25 V
I
3VIN
3.3V Supply Current Program to Hi-Z (Note 4) ● 0.01 10 µA
Program to 3.3V, No Load (Note 4)
● 40 80 µA
Program to 5V, No Load (Note 4)
● 0.01 10 µA
I
5VIN
5V Supply Current Program to Hi-Z (Note 4) ● 0.01 10 µA
Program to 3.3V (Note 4)
● 100 160 µA
Program to 5V (Note 4)
● 140 200 µA
R
ON
3.3V Switch ON Resistance Program to 3.3V, I
OUT
= 500mA 0.12 0.16 Ω
5V Switch ON Resistance Program to 5V, I
OUT
= 500mA 0.14 0.18 Ω
I
LKG
Output Leakage Current OFF Program to Hi-Z, 0V ≤ V
OUT
≤ 5V (Note 4) ● ±10 µA
I
LIM3V
3.3V Current Limit Program to 3.3V, V
OUT
= 0V (Note 5) 1 A
I
LIM5V
5V Current Limit Program to 5V, V
OUT
= 0V (Note 5) 1 A
V
ENH
Enable Input High Voltage ● 2.0 V
V
ENL
Enable Input Low Voltage ● 0.8 V
I
EN
Enable Input Current 0V ≤ V
EN
≤ 5V ±1 µA
ELECTRICAL CHARACTERISTICS
LTC1470CS8
LTC1470ES8
T
JMAX
= 100°C, θ
JA
= 150°C/W
1
2
3
4
8
7
6
5
TOP VIEW
OUT
3V
IN
3V
IN
GND
OUT
5V
IN
EN1
EN0
S8 PACKAGE
8-LEAD PLASTIC SO
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
AOUT
A5V
IN
AEN1
AEN0
GND
B3V
IN
B3V
IN
BOUT
AOUT
A3V
IN
A3V
IN
GND
BEN0
BEN1
B5V
IN
BOUT
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. 3V
IN
= 3.3V, 5V
IN
= 5V (Note 3), unless otherwise noted.
(Note 1)
Consult LTC Marketing for parts specified with wider operating temperature ranges.