Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

TC1174VOA Datasheet(PDF) 4 Page - Microchip Technology

No. de pieza TC1174VOA
Descripción Electrónicos  300mA CMOS LDO with Shutdown and VREF Bypass
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC1174VOA Datasheet(HTML) 4 Page - Microchip Technology

  TC1174VOA Datasheet HTML 1Page - Microchip Technology TC1174VOA Datasheet HTML 2Page - Microchip Technology TC1174VOA Datasheet HTML 3Page - Microchip Technology TC1174VOA Datasheet HTML 4Page - Microchip Technology TC1174VOA Datasheet HTML 5Page - Microchip Technology TC1174VOA Datasheet HTML 6Page - Microchip Technology TC1174VOA Datasheet HTML 7Page - Microchip Technology TC1174VOA Datasheet HTML 8Page - Microchip Technology TC1174VOA Datasheet HTML 9Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 12 page
background image
TC1174
DS21363B-page 4
© 2002 Microchip Technology Inc.
3.0
DETAILED DESCRIPTION
The TC1174 is an adjustable low drop-out regulator.
Unlike bipolar regulators, the TC1174’s supply current
does not increase with load current. In addition, VOUT
remains stable and within regulation over the entire
0mA to IOUTMAX operating load current range, (an
important consideration in RTC and CMOS RAM
battery back-up applications).
Figure 3-1 shows a typical application circuit. The
regulator is enabled any time the shutdown input
(SHDN)isatorabove VIH, and shutdown (disabled)
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, supply current decreases to 0.05
µA
(typical), VOUT falls to zero.
FIGURE 3-1:
TYPICAL APPLICATION
CIRCUIT
3.1
Bypass Input
A 470pF 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 results in a longer time period to rated output
voltage when power is initially applied.
3.2
Output Capacitor
A1
µF(min) capacitor from VOUT to ground is required.
The output capacitor should have an effective series
resistance greater than 0.1
Ω and less than 5.0Ω.A 1µF
capacitor should be connected from VIN to GND if there
is more than 10 inches of wire between the regulator
and the AC filter capacitor, or if a battery is used as the
power source. Aluminum electrolytic or tantalum
capacitor types can be used. (Since many aluminum
electrolytic capacitors freeze at approximately -30°C,
solid tantalums 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.
3.3
Adjust Input
The output voltage setting is determined by the values
of R1 and R2 (Figure 3-1). The ohmic values of these
resistors should be between 470K and 3M to minimize
bleeder current.
The output voltage setting is calculated using the
following equation.
EQUATION 3-1:
The voltage adjustment range of the TC1174 is from
VREF to (VIN –0.05V).
TC1174
1
2
3
4
5
6
7
8
VOUT
VOUT
CBYPASS
470pF
(Optional)
Shutdown
Control
(from Power
Control Logic)
C1
1
µF
GND
NC
ADJ
VIN
NC
Bypass
SHDN
R1
470K
470K
R2
C2
1
µF
Battery
+
+
+
VOUT =VREF x
[
+1
]
R1
R2


Número de pieza similar - TC1174VOA

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Microchip Technology
TC1174VOA MICROCHIP-TC1174VOA Datasheet
211Kb / 14P
   300mA CMOS LDO with Shutdown and VREF Bypass
10/26/12
More results

Descripción similar - TC1174VOA

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Microchip Technology
TC1269 MICROCHIP-TC1269_13 Datasheet
198Kb / 12P
   300mA CMOS LDO with Shutdown and VREF Bypass
2002-2012 11/27/12
TC1269 MICROCHIP-TC1269 Datasheet
432Kb / 12P
   300mA CMOS LDO with Shutdown and VREF Bypass
2002
TC1174 MICROCHIP-TC1174_13 Datasheet
211Kb / 14P
   300mA CMOS LDO with Shutdown and VREF Bypass
10/26/12
TC1107-3.3VUA MICROCHIP-TC1107-3.3VUA Datasheet
433Kb / 12P
   300mA CMOS LDO with Shutdown and VREF Bypass
05/01/02
TC1107 MICROCHIP-TC1107 Datasheet
443Kb / 12P
   300mA CMOS LDO with Shutdown and VREF Bypass
2002
TC1107 MICROCHIP-TC1107_13 Datasheet
209Kb / 14P
   300mA CMOS LDO with Shutdown and VREF Bypass
10/26/12
logo
TelCom Semiconductor, I...
TC1072 TELCOM-TC1072 Datasheet
126Kb / 12P
   50mA CMOS LDO WITH SHUTDOWN, ERROR OUTPUT AND VREF BYPASS
TC1173 TELCOM-TC1173 Datasheet
54Kb / 7P
   300mA CMOS LDO with Shutdown, ERROR Output and Bypass
logo
Microchip Technology
TC1173 MICROCHIP-TC1173 Datasheet
448Kb / 12P
   300mA CMOS LDO with Shutdown ERROR output and Bypass
2002
TC1173 MICROCHIP-TC1173_13 Datasheet
217Kb / 14P
   300mA CMOS LDO with Shutdown ERROR Output and Bypass
10/26/12
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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