TC2117-1.8VEBTR Microchip Technology, TC2117-1.8VEBTR Datasheet - Page 5
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TC2117-1.8VEBTR
Manufacturer Part Number
TC2117-1.8VEBTR
Description
IC CMSO LDO 1.8V 800MA DDPAK-3
Manufacturer
Microchip Technology
Specifications of TC2117-1.8VEBTR
Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
1.2V @ 800mA
Number Of Regulators
1
Current - Output
800mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-3, D²Pak (3 leads + Tab), TO-263AA
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Voltage
1.8 V
Output Type
Fixed
Dropout Voltage (max)
30 mV
Output Current
800 mA
Line Regulation
0.001 %
Load Regulation
0 % / mA
Voltage Regulation Accuracy
0.5 %
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
TC21171.8VEBTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TC2117-1.8VEBTR
Manufacturer:
MICROCHIP
Quantity:
6 000
Part Number:
TC2117-1.8VEBTR
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
TABLE 3-2:
Equation 3-1 can be used in conjunction with
Equation 3-2 to ensure regulator thermal operation is
within limits. For example:
Find:
©
*Tab of device attached to topside copper.
Given:
2500 sq mm
1000 sq mm
125 sq mm
(Topside)*
2002 Microchip Technology Inc.
Copper
Area
1. Actual power dissipation
2. Maximum allowable dissipation
I
LOADMAX
V
V
OUT
2500 sq mm
2500 sq mm
2500 sq mm
T
(Backside)
T
IN
A
J
Copper
θ
MAX
MAX
MAX
MIN
THERMAL RESISTANCE
GUIDELINES FOR TC2117 IN
3-PIN DDPAK PACKAGE
Area
JA
= 5.0V ± 5%
= 3.3V ± 0.5%
= 400mA
= 125°C
= 55°C
= 59°C/W (SOT-223)
2500 sq mm
2500 sq mm
2500 sq mm
Board Area
Resistance
Thermal
25°C/W
27°C/W
35°C/W
(θ
JA
)
Actual power dissipation:
Maximum allowable power dissipation:
In this example, the TC2117 dissipates a maximum of
only 786mW; below the allowable limit of 1.186mW. In
a similar manner, Equation 3-1 and Equation 3-2 can
be used to calculate maximum current and/or input
voltage limits.
P
D
P
MAX
D
≈ (V
= [(5.0 x 1.05) – (3.3 x .995)] 400 x 10
= 786mW
=
=
=
IN
(T
(125 – 55)
1.186mW
MAX
J
MAX
– V
59
θ
– T
JA
OUT
A
MAX
MIN
)I
)
LOAD
TC2117
MAX
DS21665B-page 5
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