MCP1700T-2502E/TT Microchip Technology, MCP1700T-2502E/TT Datasheet - Page 11
![IC REG LDO 250MA 2.5V SOT23-3](/photos/7/21/72163/sot-23-3_pkg_sml.jpg)
MCP1700T-2502E/TT
Manufacturer Part Number
MCP1700T-2502E/TT
Description
IC REG LDO 250MA 2.5V SOT23-3
Manufacturer
Microchip Technology
Type
Linearr
Specifications of MCP1700T-2502E/TT
Regulator Topology
Positive Fixed
Voltage - Output
2.5V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
0.178V @ 250mA
Number Of Regulators
1
Current - Output
250mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Primary Input Voltage
3.5V
Output Voltage Fixed
2.5V
Dropout Voltage Vdo
350mV
No. Of Pins
3
Output Current
250mA
Operating Temperature Range
-40°C To +125°C
Termination Type
SMD
Package
3SOT-23
Function
LDO
Number Of Outputs
1
Input Voltage Range
6 to 2.3 V
Output Voltage
2.5 V
Maximum Output Current
0.25(Min) A
Output Type
Fixed
Accuracy
±2 %
Typical Dropout Voltage @ Current
0.178@250mA V
Polarity
Positive
Input Voltage Max
6 V
Dropout Voltage (max)
350 mV
Line Regulation
0.75 % / V
Load Regulation
1 %
Voltage Regulation Accuracy
3 %
Maximum Power Dissipation
0.3696 W
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Voltage Regulator Case Style
SOT-23
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
MCP1700T-2502E/TT
MCP1700T-2502E/TTTR
MCP1700T-2502E/TTTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP1700T-2502E/TT
Manufacturer:
Microchip Technology
Quantity:
37 024
Part Number:
MCP1700T-2502E/TT
Manufacturer:
MICROCH1P
Quantity:
20 000
4.0
4.1
A portion of the LDO output voltage is fed back to the
internal error amplifier and compared with the precision
internal bandgap reference. The error amplifier output
will adjust the amount of current that flows through the
P-Channel pass transistor, thus regulating the output
voltage to the desired value. Any changes in input
voltage or output current will cause the error amplifier
to respond and adjust the output voltage to the target
voltage (refer to Figure 4-1).
4.2
The MCP1700 internal circuitry monitors the amount of
current flowing through the P-Channel pass transistor.
In the event of a short-circuit or excessive output
current, the MCP1700 will turn off the P-Channel
device for a short period, after which the LDO will
attempt to restart. If the excessive current remains, the
cycle will repeat itself.
FIGURE 4-1:
2003 Microchip Technology Inc.
Output Regulation
DETAILED DESCRIPTION
Overcurrent
V
IN
Block Diagram.
Overcurrent
Overtemperature
Voltage
Reference
GND
MCP1700
Error Amplifier
-
+
+V
4.3
The internal power dissipation within the LDO is a
function of input-to-output voltage differential and load
current. If the power dissipation within the LDO is
excessive, the internal junction temperature will rise
above the typical shutdown threshold of 140°C. At that
point, the LDO will shut down and begin to cool to the
typical turn-on junction temperature of 130°C. If the
power dissipation is low enough, the device will
continue to cool and operate normally. If the power
dissipation remains high, the thermal shutdown
protection circuitry will again turn off the LDO,
protecting it from catastrophic failure.
IN
Overtemperature
MCP1700
V
OUT
DS21826A-page 11