LTC1701 LINER [Linear Technology], LTC1701 Datasheet - Page 2

• Manufacturer Part Number: LTC1701
• Description: 1MHz Step-Down DC/DC Converter in SOT-23
• Manufacturer: LINER [Linear Technology]

LTC1701
ABSOLUTE AXI U RATI GS
(Note 1)
(Voltages Referred to GND Pin)
V
I
V
Peak Switch Current (Pin 1) ................................... 1.3A
V
Operating Temperature Range (Note 2) .. – 40 C to 85 C
Junction Temperature (Note 5) ............................. 125 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
specified. (Note 2)
SYMBOL
V
I
V
V
I
I
R
I
t
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1701E 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.
2
FB
ITH/RUN
SW(PEAK)
SW(LKG)
OFF
TH
IN
FB
ITH/RUN
V
V
DS(ON)
IN
FB
IN
LINE REG
LOAD REG
/RUN Voltage (Pin 4) ..............................– 0.3V to 3V
Voltage (Pin 5).......................................– 0.3V to 6V
– SW (Max Switch Voltage) ................8.5V to – 0.3V
Voltage (Pin 3) ......................................– 0.3V to 3V
PARAMETER
Operating Voltage Range
Feedback Pin Input Current
Feedback Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
Input DC Supply Current (Note 4)
Run Threshold High
Run Threshold Low
Run Pullup Current
Peak Switch Current Threshold
Switch ON Resistance
Switch Leakage Current
Switch Off-Time
Active Mode
Sleep Mode
Shutdown
W
W W
U
A
CONDITIONS
(Note 3)
(Note 3)
V
Measured in Servo Loop, V
Measured in Servo Loop, V
V
V
V
I
I
V
V
V
V
V
V
TH/RUN
TH/RUN
IN
FB
FB
ITH/RUN
ITH/RUN
FB
IN
IN
IN
IN
= 25 C. V
= 2.5V to 5V (Note 3)
= 5V, V
= 3.3V, V
= 2.5V, V
= 5V, V
= 0V
= 1.4V
= 0V
The
Ramping Down
Ramping Up
= 0V
= 1V
FB
ITH/RUN
IN
FB
FB
= 0V
denotes the specifications which apply over the full operating
= 3.3V, R
= 0V
= 0V
= 0V, V
PACKAGE/ORDER I FOR ATIO
Consult factory for Industrial and Military grade parts.
Note 3: The LTC1701 is tested in a feedback loop which servos V
midpoint for the error amplifier (V
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5: T
according to the following formula:
LTC1701ES5: T
GND 2
SW 1
V
ITH/RUN
FB
FB
T
ITH
ITH
5-LEAD PLASTIC SOT-23
JMAX
3
= 0V
J
is calculated from the ambient T
= 1.5V, (Note 3)
= 1.9V, (Note 3)
= 125 C,
S5 PACKAGE
TOP VIEW
= 1Meg (from V
J
= T
JA
= 110 C/W
A
+ (P
5 V
4 I
TH
IN
D
•110 C/W)
/RUN
IN
ITH
to I
1.22
MIN
400
= 1.7V unless otherwise specified).
2.5
0.3
0.9
50
TH
/RUN) unless otherwise
U
A
and power dissipation P
– 0.80
1.25
0.04
0.25
0.28
0.30
0.35
0.01
TYP
185
135
100
500
ORDER PART
0.01
1.4
0.6
1.1
LTC1701ES5
MARKING
NUMBER
S5 PART
W
LTKG
–1.50
MAX
1.28
0.70
300
200
300
600
5.5
0.1
1.6
0.1
1
1
FB
to the
UNITS
D
U
%/V
ns
%
%
V
A
V
A
A
A
V
V
A
A
A