TC1301A-PFCVMF Microchip Technology, TC1301A-PFCVMF Datasheet - Page 19

• Manufacturer Part Number: TC1301A-PFCVMF
• Description: IC REG LDO DUAL 300/150MA 8DFN
• Manufacturer: Microchip Technology

Specifications of TC1301A-PFCVMF

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V, 2.8V, 2.32V (Reset)
• Voltage - Input: 2.7 ~ 6 V
• Voltage - Dropout (typical): -, 0.15V @ 150mA
• Number Of Regulators: 2
• Current - Output: 300mA (Min), 150mA (Min)
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Number Of Outputs: 2
• Polarity: Positive
• Input Voltage Max: 6 V
• Output Voltage: 1.8 V or 2.8 V
• Output Type: Fixed
• Dropout Voltage (max): 0.18 V at 300 mA
• Output Current: 0.3 A, 0.15 A
• Line Regulation: 0.02 % / V
• Load Regulation: 0.1 %
• 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: Details

Junction Temperature Estimate
To estimate the internal junction temperature, the
calculated temperature rise is added to the ambient or
offset temperature. For this example, the worst-case
junction temperature is estimated below:
Maximum Package Power Dissipation at 50°C
Ambient Temperature
7.0
FIGURE 7-1:
When doing the physical layout for the TC1301A/B, the
highest priority is placing the input and output
capacitors as close to the device pins as is practical.
Figure 7-1
components when using SMT0805 capacitors.
FIGURE 7-2:
A wiring example for the TC1301A is shown. The vias
represent the connection to a ground plane that is
below the wiring layer.
© 2008 Microchip Technology Inc.
3X3DFN8 (41° C/W Rθ
MSOP8 (208° C/W Rθ
P
P
P
P
D(MAX)
D(MAX)
D(MAX)
D(MAX)
TYPICAL LAYOUT TC1301A
T
T
above represents a typical placement of the
J
J
= T
= 83.1°C
= (125°C - 50°C) / 41° C/W
= 1.83 Watts
= (125°C - 50°C) / 208° C/W
= 0.360 Watts
JRISE
MSOP8 Silk Screen Layer.
MSOP8 Wiring Layer.
JA
+ T
JA
)
)
A(MAX)
FIGURE 7-3:
Example.
8-lead 3X3 DFN physical layout example with bypass
capacitor.
FIGURE 7-4:
Example.
Vias represent the connection to a ground plane that is
below the wiring layer.
8.0
8.1
Table 8-1
available for the TC1301A/B. V
factory preset from 1.5V to 3.3V in 100 mV increments.
The V
can be preset from 2.2V to 3.2V in 10 mV increments.
TABLE 8-1:
For a listing of TC1301A/B standard parts, refer to the
Product Identification System on page 25.
1.5V to 3.3V
V
DET
OUT1
ADDITIONAL OUTPUT
VOLTAGE AND THRESHOLD
VOLTAGE OPTIONS
Output Voltage and Threshold
Voltage Range
describes the range of output voltage options
(TC1301A) or threshold voltage (TC1301B)
CUSTOM OUTPUT VOLTAGE
AND THRESHOLD VOLTAGE
RANGES
1.5V to 3.3V
3x3 DFN Silk-Screen
3x3 DFN Top Metal Layer
V
OUT2
TC1301A/B
OUT1
and V
V
DS21798C-page 19
DET
2.2V to 3.2V
OUT2
Threshold
can be