SC1566IM-2.5TR Semtech, SC1566IM-2.5TR Datasheet - Page 8
![](/photos/40/56/405676/3pin_to-263_sml.jpg)
SC1566IM-2.5TR
Manufacturer Part Number
SC1566IM-2.5TR
Description
Manufacturer
Semtech
Datasheet
1.SC1566IM-2.5TR.pdf
(12 pages)
Specifications of SC1566IM-2.5TR
Voltage Regulator Type
Linear
Topology
LDO
Regulator Output Type
Adjustable/Fixed
Polarity Type
Positive
Number Of Outputs
Single
Input Voltage (min)
2.2V
Input Voltage (max)
5.5V
Output Voltage
1.2 to 4.8/2.5V
Package Type
TO-263
Output Current
3A
Load Regulation
0.2%
Line Regulation
0.035%
Output Voltage Accuracy
±1%
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Dropout Voltage@current (max)
0.005@10mA/0.1@500mA
Dropout Voltage@current (typ)
0.001@10mA
Pin Count
3 +Tab
Mounting
Surface Mount
Quiescent Current (max)
1.75mA
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SC1566IM-2.5TR
Manufacturer:
SEMTECH
Quantity:
50 000
Part Number:
SC1566IM-2.5TR
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
Company:
Part Number:
SC1566IM-2.5TRT
Manufacturer:
SEMTEC
Quantity:
944
Using this figure, and assuming T
calculate the maximum thermal impedance allowable to
maintain T
R
R
POWER MANAGEMENT
Applications Information (Cont.)
therefore
0.001
Co=2.2uF, Stable Region:
TH
TH
2005 Semtech Corp.
J (
J (
A
C
)(
)(
MAX
MAX
Unstable Region:
R
)
0.01
)
J
TH
(
3
S
150°C (see page 7):
T
A
ESR(Ohms)
( J
C
)(
MAX
MAX
/
P
W
0.1
)
D
)
(
MAX
and
T
33
A
)
(
MAX
R
C
TH
)
/
(
1
C
W
S
)
150
0.001
Co=220uF, Stable Region:
. 1
0
A(MAX)
81
C
10
85
3mA
30mA
300mA
3A
/
W
Figure 1. Phase-margin Contour Plot
= 85°C, we can
Unstable Region:
0.01
,
36
Load
ESR(Ohms)
C
/
W
0.1
8
This should be achievable for the TO-263 package using
pcb copper area to aid in conducting the heat away from
the device, such as a large (~2 squ. inch) pad connected
to the tab of the device. Internal ground/power planes
and air flow will also assist in removing heat. For higher
power dissipations it may be necessary to use a small
heatsink and the TO-220 package.
1
0.001
Co=22uF, Stable Region:
Unstable Region:
10
3mA
30mA
300mA
3A
0.01
Load
ESR(Ohms)
0.1
1
10
3mA
30mA
300mA
3A
SC1566
www.semtech.com
Load