MCP1703-2802E/DB Microchip Technology, MCP1703-2802E/DB Datasheet - Page 13
![IC REG LDO 250MA 2.8V SOT223-3](/photos/12/58/125852/mfg_mcp1825_sot223-3_sml.jpg)
MCP1703-2802E/DB
Manufacturer Part Number
MCP1703-2802E/DB
Description
IC REG LDO 250MA 2.8V SOT223-3
Manufacturer
Microchip Technology
Specifications of MCP1703-2802E/DB
Regulator Topology
Positive Fixed
Voltage - Output
2.8V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.625V @ 250mA
Number Of Regulators
1
Current - Output
250mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
3.0
The descriptions of the pins are listed in
TABLE 3-1:
3.1
Regulator ground. Tie GND to the negative side of the
output and the negative side of the input capacitor.
Only the LDO bias current (2.0 µA typical) flows out of
this pin; there is no high current. The LDO output
regulation is referenced to this pin. Minimize voltage
drops between this pin and the negative side of the
load.
3.2
Connect V
positive terminal of the output capacitor. The positive
side of the output capacitor should be physically
located as close to the LDO V
The current flowing out of this pin is equal to the DC
load current.
© 2009 Microchip Technology Inc.
SOT-23A
Pin No.
1
2
3
–
PIN DESCRIPTIONS
Ground Terminal (GND)
Regulated Output Voltage (V
OUT
to the positive side of the load and the
Pin No.
SOT-89
2, Tab
PIN FUNCTION TABLE
1
3
–
Pin No.
OUT
TO-92
1
3
2
–
pin as is practical.
Table
Symbol
OUT
3-1.
V
GND
V
NC
OUT
IN
)
Ground Terminal
Regulated Voltage Output
Unregulated Supply Voltage
No connection
3.3
Connect V
Like all LDO linear regulators, low source impedance is
necessary for the stable operation of the LDO. The
amount of capacitance required to ensure low source
impedance will depend on the proximity of the input
source
applications, 1 µF of capacitance will ensure stable
operation of the LDO circuit. For applications that have
load currents below 100 mA, the input capacitance
requirement can be lowered. The type of capacitor
used
electrolytic. The low ESR characteristics of the ceramic
will yield better noise and PSRR performance at
high-frequency.
can
Unregulated Input Voltage Pin
(V
capacitors
IN
IN
be
to the input unregulated source voltage.
)
ceramic,
Function
or
battery
tantalum
MCP1702
type.
DS22008D-page 13
or
For
aluminum
most