MCP1804T-3302I/DB Microchip Technology, MCP1804T-3302I/DB Datasheet - Page 21

• Manufacturer Part Number: MCP1804T-3302I/DB
• Description: IC REG LDO 3.3V 150MA SOT223-3
• Manufacturer: Microchip Technology

Specifications of MCP1804T-3302I/DB

• Package / Case: SOT-223 (3 leads + Tab), SC-73, TO-261
• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 28V
• Voltage - Dropout (typical): 1.3V @ 100mA
• Number Of Regulators: 1
• Current - Output: 150mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Input Voltage Max: 28 V
• Output Voltage: 1.8 V
• Output Voltage Tolerance: +/- 2 %
• Dropout Voltage (max): 710 V
• Output Current: 150 mA
• Line Regulation: 0.05 %/V
• Load Regulation: 275 mV
• Maximum Power Dissipation: 300 mW
• 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: MCP1804T-3302I/DBTR

5.0
The MCP1804 CMOS linear regulator is intended for
applications that need the low current consumption
while maintaining output voltage regulation. The
operating continuous load range of the MCP1804 is
from 0 mA to 150 mA. The input operating voltage
range is from 2.0V to 28.0V, making it capable of
operating from a single 12V battery or single and
multiple Li-Ion cell batteries.
5.1
The input of the MCP1804 is connected to the source
of the P-Channel PMOS pass transistor. As with all
LDO circuits, a relatively low source impedance
(< 10Ω) is needed to prevent the input impedance from
causing the LDO to become unstable. The size and
type of the capacitor needed depends heavily on the
input source type (battery, power supply) and the
output current range of the application. For most
applications a 0.1 µF ceramic capacitor will be
sufficient to ensure circuit stability. Larger values can
be used to improve circuit AC performance.
© 2009 Microchip Technology Inc.
FUNCTIONAL DESCRIPTION
Input
5.2
The maximum rated continuous output current for the
MCP1804 is 150 mA.
A minimum output capacitance of 0.1 µF to 1.0 µF is
required for small signal stability in applications that
have up to 150 mA output current capability. The
capacitor type can be ceramic, tantalum or aluminum
electrolytic.
Output
MCP1804
DS22200B-page 21