MCP1790-3002E/EB Microchip Technology, MCP1790-3002E/EB Datasheet - Page 16

• Manufacturer Part Number: MCP1790-3002E/EB
• Description: IC LDO REG 70MA 3.0V 3DDPAK
• Manufacturer: Microchip Technology

Specifications of MCP1790-3002E/EB

• Package / Case: TO-263-3, D²Pak (3 leads + Tab), TO-263AA
• Regulator Topology: Positive Fixed
• Voltage - Output: 3V
• Voltage - Input: 6 ~ 30 V
• Voltage - Dropout (typical): 0.7V @ 70mA
• Number Of Regulators: 1
• Current - Output: 70mA (Min)
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 30 V
• Output Voltage: 3 V
• Output Type: Fixed
• Dropout Voltage (max): 1.3 V at 70 mA
• Output Current: 70 mA
• Line Regulation: +/- 0.0002 % / V
• Load Regulation: +/- 0.2 %
• Voltage Regulation Accuracy: 2.5 %
• 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

MCP1790/MCP1791
4.8
The MCP1790/MCP1791 devices are tested and
ensured to supply a minimum of 70 mA of output
current.
The MCP1790/MCP1791 also incorporate an output
current limit foldback. When the regulator is in an
overcurrent condition, V
ing load. When V
the output current will start to fold back. The output
current will fold back to less than 100 mA (typical) when
V
FIGURE 4-3:
DS22075A-page 16
OUT
is near 0 volts.
0.001
0.01
Output Current and Current
Limiting
0.1
10
1
0.1
OUT
Instable
falls below 30% (typical) of V
ESR Curves For Load Capacitor Selection.
OUT
will decrease with increas-
1
Stable
with Tantalum or
Electrolytic cap.
ESR Curves
Load Capacitor [uF]
only
R
,
10
The 5.0V regulator has an overload current limiting of
approximately 120 mA. If V
will start to fold back and decrease along with V
until I
The 3.3V regulator has an overload current limiting of
approximately 130 mA. If V
will start to fold back and decrease along with V
until I
Instable
Instable
OUT
OUT
is less than 105 mA and V
is less than 99 mA and V
Stable
Electrolytic and
Ceramic cap.
Tantalum,
with
100
© 2008 Microchip Technology Inc.
REG
REG
is lower than 3.5V, I
is lower than 2.5V, I
REG
REG
is near 0 volts.
is near 0 volts.
1000
OUT
REG
OUT
REG