TC105503ECTTR Microchip Technology, TC105503ECTTR Datasheet - Page 3

• 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

2.0
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
©
(5-Pin SOT-23A)
2002 Microchip Technology Inc.
Pin No.
1
2
3
4
5
PIN DESCRIPTIONS
PIN FUNCTION TABLE
Symbol
SHDN
GND
V
EXT
V
OUT
DD
Switch transistor control output. This terminal connects to the gate of an external P-channel
MOSFET (or to the base of an external PNP transistor through a current limiting resistor).
Power supply voltage input.
Ground terminal.
Shutdown input (active low). The device enters a low power shutdown state when this input is
brought low. During shutdown, regulator action is suspended, and supply current is reduced to
less than 0.5µA. The device resumes normal operation when SHDN is again brought high.
Voltage sense input. This input senses output voltage for regulation and must be connected to the
output voltage node as shown in the application schematic in this data sheet.
Description
DS21349B-page 3
TC105