TC105503ECTTR Microchip Technology, TC105503ECTTR Datasheet - Page 8

• Manufacturer Part Number: TC105503ECTTR
• Description: IC PFM/PWM CONTRLLER 5V SOT23A-5
• Manufacturer: Microchip Technology
• Type: Step-Down (Buck)r

Specifications of TC105503ECTTR

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 1A
• Frequency - Switching: 300kHz
• Voltage - Input: 0.9 ~ 2.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Power - Output: 150mW
• Output Current: 100 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TC1054/TC1055/TC1186
3.0
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
3.1
Connect unregulated input supply to the V
there is a large distance between the input supply and
the LDO regulator, some input capacitance is neces-
sary for proper operation. A 1 µF capacitor connected
from V
applications.
3.2
Connect the unregulated input supply ground return to
GND. Also connect the negative side of the 1 µF typical
input decoupling capacitor close to GND and the
negative side of the output capacitor C
DS21350C-page 8
Pin No. Symbol
1
2
3
4
5
IN
PIN DESCRIPTIONS
Unregulated Supply Input (V
Ground Terminal (GND)
ERROR Out-of-Regulation Flag
SHDN
V
to ground is recommended for most
GND
V
OUT
IN
PIN FUNCTION TABLE
Unregulated supply input
Ground terminal
Shutdown control input
(Open-drain output)
Regulated voltage output
Description
OUT
to GND.
IN
IN
pin. If
)
3.3
The regulator is fully enabled when a logic-high is
applied to SHDN. The regulator enters shutdown when
a logic-low is applied to SHDN. During shutdown, out-
put voltage falls to zero, ERROR is open-circuited and
supply current is reduced to 0.5 µA (max).
3.4
ERROR goes low when V
approximately -5%.
3.5
Connect the output load to V
nect the positive side of the LDO output capacitor as
close as possible to the V
Shutdown Control Input (SHDN)
Out Of Regulation Flag (ERROR)
Regulated Voltage Output (V
OUT
2003 Microchip Technology Inc.
OUT
OUT
pin.
is out-of-tolerance by
of the LDO. Also con-
OUT
)