LTC3250ES6-1.2 Linear Technology, LTC3250ES6-1.2 Datasheet - Page 2

• Manufacturer Part Number: LTC3250ES6-1.2
• Manufacturer: Linear Technology
• Type: Step Downr

Specifications of LTC3250ES6-1.2

• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Package Type: TSOT-23
• Pin Count: 6
• Mounting: Surface Mount
• Output Voltage: 1.2V
• Output Current: 250mA
• Lead Free Status / RoHS Status: Not Compliant

ABSOLUTE AXI U RATI GS
LTC3250-1.5/LTC3250-1.2
(Note 1)
V
SHDN to GND ............................... –0.3V to (V
I
Operating Ambient Temperature Range (Note 3)
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are at T
SYMBOL
V
V
I
V
V
f
V
V
I
I
t
R
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Based on long term current density limitations.
Note 3: The LTC3250-1.5E/LTC3250-1.2E are guaranteed to meet
specified performance from 0 C to 70 C. Specifications over the –40 C
and 85 C operating temperature range are assured by design
characterization and correlation with statistical process controls.
2
ELECTRICAL CHARACTERISTICS
IN
OSC
IH
IL
ON
OUT
IN
OUT
RB
RC
IH
IL
OL
IN
........................................................... – 40 C to 85 C
to GND ................................................... –0.3V to 6V
(Note 2)....................................................... 350mA
PARAMETER
LTC3250-1.5 Operating Voltage Range
LTC3250-1.2 Operating Voltage Range
LTC3250-1.5 Output Voltage Range
LTC3250-1.2 Output Voltage Range
Operating Current
Shutdown Current
Burst Mode Operation Output Ripple
Continuous Mode Output Ripple
Switching Frequency
SHDN Input Hi Voltage
SHDN Input Low Voltage
SHDN Input Current
SHDN Input Current
Turn On Time
LTC3250-1.5 Load Regulation
LTC3250-1.2 Load Regulation
Line Regulation
Open-Loop Output Impedance
W
W W
U
A
IN
= 25 C. V
CONDITIONS
I
I
I
I
I
I
SHDN = 0V
SHDN = V
SHDN = 0V
R
0 I
0 I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
+ 0.3V)
LOAD
The
OUT
OUT
= 0mA
= 250mA
= 250mA (Note 4)
= 6
50mA 3.1V V
100mA 3.2V V
250mA 3.5V V
150mA 2.7V < V
250mA 2.9V V
IN
IN
250mA
250mA
denotes the specifications which apply over the full operating
= 3.6V, C
PACKAGE/ORDER I FOR ATIO
Note 4: Output not in regulation; R
Note 5: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125 C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
SHDN 3
GND 2
IN
FLY
V
IN
T
IN
IN
IN
IN
JMAX
6-LEAD PLASTIC SOT-23
< 5.5V
1
= 1 F, C
5.5V
5.5V
5V
5V
= 150 C,
S6 PACKAGE
JC
TOP VIEW
= 102 C/W
IN
JA
= 230 C/W,
= 1 F, C
6 C
5 V
4 C
+
OUT
–
OUT
OL
= 4.7 F unless otherwise noted.
1.44
1.44
1.44
1.15
1.15
MIN
= (V
3.1
2.7
1.2
1.2
–1
–1
IN
U
/2 - V
S6 PART MARKING
LTC3250ES6-1.5
LTC3250ES6-1.2
0.01
0.15
0.12
TYP
ORDER PART
1.5
1.5
1.5
1.2
1.2
1.5
0.8
0.8
0.8
0.2
1.0
35
12
OUT
4
NUMBER
LTZE
LTAGJ
)/I
W
OUT
MAX
1.56
1.56
1.56
1.25
1.25
.
5.5
5.5
1.8
0.4
60
1
1
1
mV/mA
mV/mA
UNITS
mV
mV
3250fa
U
MHz
%/V
ms
P-P
P-P
V
V
V
V
V
V
V
A
A
V
V
A
A