Electronic Components Datasheet Search |
|
TC2015-2.85VCTTR Datasheet(PDF) 10 Page - Microchip Technology |
|
TC2015-2.85VCTTR Datasheet(HTML) 10 Page - Microchip Technology |
10 / 20 page TC2014/2015/2185 DS21662E-page 10 © 2006 Microchip Technology Inc. 4.0 DETAILED DESCRIPTION The TC2014, TC2015 and TC2185 are precision fixed- output voltage regulators (if an adjustable version is needed, see the TC1070, TC1071 and TC1187 (DS21353) data sheet). Unlike bipolar regulators, the TC2014, TC2015 and TC2185 supply current does not increase with load current. In addition, the LDO’s out- put voltage is stable using 1 µF of ceramic or tantalum capacitance over the entire specified input voltage range and output current range. Figure 4-1 shows a typical application circuit. The reg- ulator is enabled anytime the shutdown input (SHDN) is at or above VIH, and disabled (shutdown) when SHDN is at or below VIL. SHDN may be controlled by a CMOS logic gate or I/O port of a microcontroller. If the SHDN input is not required, it should be connected directly to the input supply. While in shutdown, the supply current decreases to 0.05 µA (typical) and VOUT falls to zero volts. FIGURE 4-1: Typical Application Circuit. 4.1 Bypass Input A 0.01 µF ceramic capacitor, connected from the Bypass input to ground, reduces noise present on the internal reference, which, in turn, significantly reduces output noise. If output noise is not a concern, this input may be left unconnected. Larger capacitor values may be used, but the result is a longer time period to rated output voltage when power is initially applied. 4.2 Output Capacitor A 1 µF (min) capacitor from VOUT to ground is required. The output capacitor should have an Effective Series Resistance (ESR) of 0.01 Ω to 5Ω for VOUT ≥ 2.5V, and 0.05 Ω. to 5Ω for VOUT < 2.5V. Ceramic, tantalum or alu- minum electrolytic capacitors can be used. When using ceramic capacitors, X5R and X7R dielectric material are recommended due to their stable tolerance over temperature. However, other dielectrics can be used as long as the minimum output capacitance is maintained. 4.3 Input Capacitor A 1 µF capacitor should be connected from VIN to GND if there is more than 10 inches of wire between the reg- ulator and this AC filter capacitor, or if a battery is used as the power source. Aluminum electrolytic or tantalum capacitors can be used (since many aluminum electro- lytic capacitors freeze at approximately -30°C, solid tantalum are recommended for applications operating below -25°C). When operating from sources other than batteries, supply-noise rejection and transient response can be improved by increasing the value of the input and output capacitors and employing passive filtering techniques. 0.01 µF Reference Bypass Cap (Optional) Shutdown Control (from Power Control Logic) TC2014 TC2015 TC2185 VIN 1 2 34 5 VOUT Bypass SHDN GND VOUT 1µF 1µF Battery + + + |
Similar Part No. - TC2015-2.85VCTTR |
|
Similar Description - TC2015-2.85VCTTR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |