LTC3221-5 Linear Technology, LTC3221-5 Datasheet - Page 2

• Manufacturer Part Number: LTC3221-5
• Description: Micropower
• Manufacturer: Linear Technology

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ABSOLUTE AXI U RATI GS
(Note 1)
V
V
V
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range .................. – 65°C to 125°C
Maximum Junction Temperature .......................... 125°C
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
C
LTC3221/
LTC3221-3.3/LTC3221-5
2
SYMBOL
LTC3221-3.3
V
V
I
V
η
I
LTC3221-5
V
V
I
V
η
I
LTC3221
V
V
R
I
I
CC
SC
CC
SC
CC
FB
FLY
IN
OUT
R
IN
OUT
R
IN
FB
IN
OUT
OUT
OL
, ⎯ S ⎯ H ⎯ D ⎯ N , FB ............................................. – 0.3V to 6V
= 1µF, C
to GND ............................................. – 0.3V to 5.5V
Short-Circuit Duration ............................ Indefi nite
IN
= 2.2µF, C
PARAMETER
Input Supply Voltage
Output Voltage
Operating Supply Current
Output Ripple
Effi ciency
Output Short-Circuit Current
Input Supply Voltage
Output Voltage
Operating Supply Current
Output Ripple
Effi ciency
Output Short-Circuit Current
Input Supply Voltage
Feedback Voltage
Open-Loop Impedance
Operating Supply Current
FB Input Current
W
OUT
= 2.2µF, unless otherwise specifi ed.
W W
U
A
CONDITIONS
1.8V ≤ V
2V ≤ V
I
V
V
V
2.7V ≤ V
3V ≤ V
I
V
V
V
V
I
FB = 1.33V, V
OUT
OUT
OUT
= 25°C. V
IN
IN
OUT
IN
IN
OUT
IN
= 2V, I
= 2V, I
= 3V, I
= 3V, I
= 1.8V, V
= 0mA
= 0mA
= 0mA
= 0V
= 0V
The
IN
IN
IN
IN
< 4.4V, I
≤ 5.5V, I
OUT
OUT
OUT
OUT
≤ 4.4V, I
≤ 5.5V, I
●
IN
OUT
IN
denotes the specifi cations which apply over the full operating
= 60mA, C
= 60mA (Note 3)
= 60mA, C
= 60mA (Note 3)
= 2.5V (LTC3221-3.3/LTC3221) or 3V (LTC3221-5), ⎯ S ⎯ H ⎯ D ⎯ N = V
= 2V
= 3V (Note 4)
OUT
OUT
PACKAGE/ORDER I
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
OUT
OUT
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
≤ 60mA
< 60mA
ORDER PART NUMBER
≤ 25mA
< 25mA
OUT
OUT
LTC3221EDC
LTC3221EDC-3.3
LTC3221EDC-5
= 4.7µF (Note 3)
= 4.7µF (Note 3)
EXPOSED PAD IS GND (PIN 7) MUST BE SOLDERED TO PCB
* ⎯ S ⎯ H ⎯ D ⎯ N ON LTC3221-3.3;LTC3221-5 FB ON LTC3221
SHDN/FB*
C
C
http://www.linear.com/leadfree/
T
+
–
JMAX
1
2
3
●
●
●
●
●
●
●
●
●
●
●
●
●
= 125°C, θ
TOP VIEW
3.168
1.181
–100
MIN
7
1.8
2.7
4.8
1.8
JA
= 80°C/W
U
DC PART MARKING
6
5
4
FOR ATIO
1.23
TYP
V
V
GND
120
120
3.3
35
82
45
82
10
OUT
IN
8
5
8
5
LCCP
LBQP
LCCN
W
3.432
1.279
MAX
240
240
100
4.4
5.5
5.2
5.5
15
15
20
12
IN
,
UNITS
mV
mV
U
3221f
mA
mA
P-P
P-P
µA
µA
µA
nA
%
%
Ω
V
V
V
V
V
V