MCP1801T-3302I/OT Microchip Technology, MCP1801T-3302I/OT Datasheet - Page 19

• Manufacturer Part Number: MCP1801T-3302I/OT
• Description: IC REG LDO 150MA 3.3V SOT23-5
• Manufacturer: Microchip Technology

Specifications of MCP1801T-3302I/OT

• Package / Case: SOT-23-5, SC-74A, SOT-25
• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 10V
• Voltage - Dropout (typical): 0.2V @ 100mA
• Number Of Regulators: 1
• Current - Output: 150mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 10 V
• Output Voltage: 3.3 V
• Output Type: Fixed
• Dropout Voltage (max): 0.09 V at 30 mA
• Output Current: 150 mA
• Line Regulation: 0.2 % / V
• Load Regulation: 50 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Power Dissipation: 0.25 W
• Maximum Operating Temperature: + 85 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: MCP1801T-3302I/OT; MCP1801T-3302I/OTTR

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 in the following table.
Maximum Package Power Dissipation at +25°C
Ambient Temperature
6.4
The MCP1801 can be used not only as a regulator, but
also as a low quiescent current voltage reference. In
many microcontroller applications, the initial accuracy
of the reference can be calibrated using production test
equipment or by using a ratio measurement. When the
initial accuracy is calibrated, the thermal stability and
line regulation tolerance are the only errors introduced
by the MCP1801 LDO. The low cost, low quiescent
current, and small ceramic output capacitor are all
advantages when using the MCP1801 as a voltage
reference.
FIGURE 6-2:
Voltage Reference.
 2010 Microchip Technology Inc.
SOT-23-5 (256°C/Watt = R
25 µA Bias
C
1 µF
IN
P
P
D(MAX)
D(MAX)
Bridge Sensor
Voltage Reference
T
T
MCP1801
V
GND
IN
J
J
= T
= 81.42°C
= (85°C - 25°C) / 256°C/W
= 234 milli-Watts
V
OUT
Ratio Metric Reference
JRISE
C
1 µF
Using the MCP1801 as a
OUT
+ T
A(MAX)
JA
)
V
ADO
AD1
Microcontroller
REF
PIC
®
6.5
For some applications, there are pulsed load current
events that may exceed the specified 150 mA
maximum specification of the MCP1801. The internal
current limit of the MCP1801 will prevent high peak
load demands from causing non-recoverable damage.
The 150 mA rating is a maximum average continuous
rating. As long as the average current does not exceed
150 mA nor the maximum power dissipation of the
packaged device, pulsed higher load currents can be
applied to the MCP1801
the MCP1801 is 300 mA (T
Pulsed Load Applications
.
The typical current limit for
A
+25°C).
MCP1801
DS22051D-page 19