2
LTC1754-3.3/LTC1754-5
ORDER PART
NUMBER
Consult factory for Industrial and Military grade parts.
(Note 1)
V
IN
to GND .................................................. –0.3V to 6V
V
OUT
to GND ............................................... –0.3V to 6V
SHDN to GND.............................................. –0.3V to 6V
I
OUT
(Note 4) ......................................................... 75mA
V
OUT
Short-Circuit Duration ............................ Indefinite
Operating Temperature Range (Note 3) ... –40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
LTC1754ES6-3.3
LTC1754ES6-5
T
JMAX
= 150°C, θ
JA
= 230°C/ W
S6 PART MARKING
LTGK
LTLW
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. C
FLY
= 1µF (Note 2), C
IN
= 10µF, C
OUT
= 10µF.
V
OUT
1
GND 2
SHDN 3
6 C
+
5 V
IN
4 C
–
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC SOT-23
Note 1: Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2: 0.6µF is the minimum required C
FLY
capacitance for rated output
current capability. Depending on the choice of capacitor material, a
somewhat higher value of capacitor may be required to attain 0.6µF over
temperature.
Note 3: The LTC1754ES6-X is guaranteed to meet performance
specifications from 0°C to 70°C. Specifications over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 4: Based on long term current density limitations.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
LTC1754-3.3
V
IN
Input Supply Voltage ● 2.0 4.4 V
V
OUT
Output Voltage 2.0V ≤ V
IN
≤ 4.4V, I
OUT
≤ 20mA ● 3.17 3.30 3.43 V
2.5V ≤ V
IN
≤ 4.4V, I
OUT
≤ 40mA ● 3.17 3.30 3.43 V
I
CC
Operating Supply Current 2.0V ≤ V
IN
≤ 4.4V, I
OUT
= 0mA, SHDN = V
IN
● 11 30 µA
V
R
Output Ripple V
IN
= 2.5V, I
OUT
= 40mA 23 mV
P-P
η Efficiency V
IN
= 2.0V, I
OUT
= 20mA 82 %
f
OSC
Switching Frequency Oscillator Free Running 600 kHz
t
ON
V
OUT
Turn-On Time V
IN
= 2.0V, I
OUT
= 0mA 0.8 ms
I
SC
Output Short-Circuit Current V
IN
= 2.5V, V
OUT
= 0V, SHDN = 2.5V 118 mA
LTC1754-5
V
IN
Input Supply Voltage ● 2.7 5.5 V
V
OUT
Output Voltage 2.7V ≤ V
IN
≤ 5.5V, I
OUT
≤ 25mA ● 4.8 5.0 5.2 V
3.0V ≤ V
IN
≤ 5.5V, I
OUT
≤ 50mA ● 4.8 5.0 5.2 V
I
CC
Operating Supply Current 2.7V ≤ V
IN
≤ 5.5V, I
OUT
= 0mA, SHDN = V
IN
● 13 30 µA
V
R
Output Ripple V
IN
= 3V, I
OUT
= 50mA 65 mV
P-P
η Efficiency V
IN
= 3V, I
OUT
= 50mA 82.7 %
f
OSC
Switching Frequency Oscillator Free Running 700 kHz
t
ON
V
OUT
Turn-On Time V
IN
= 3V, I
OUT
= 0mA 0.4 ms
I
SC
Output Short-Circuit Current V
IN
= 3V, V
OUT
= 0V, SHDN = 3V 150 mA
LTC1754-3.3/LTC1754-5
I
SHDN
Shutdown Supply Current V
IN
≤ 3.6V, I
OUT
= 0mA, V
SHDN
= 0V ● 0.01 1 µA
3.6V < V
IN
, I
OUT
= 0mA, V
SHDN
= 0V ● 2.5 µA
V
IH
SHDN Input Threshold (High) ● 1.4 V
V
IL
SHDN Input Threshold (Low) ● 0.3 V
I
IH
SHDN Input Current (High) SHDN = V
IN
● –1 1 µA
I
IL
SHDN Input Current (Low) SHDN = 0V ● –1 1 µA
ABSOLUTE AXI U RATI GS
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ELECTRICAL CHARACTERISTICS
