Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

XC6419DA02MR Datasheet(PDF) 8 Page - Torex Semiconductor

Part # XC6419DA02MR
Description  Dual LDO Regulator (ch1=300mA, ch2=100mA) with ON/OFF Switch
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC6419DA02MR Datasheet(HTML) 8 Page - Torex Semiconductor

Back Button XC6419DA02MR Datasheet HTML 4Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 5Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 6Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 7Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 8Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 9Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 10Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 11Page - Torex Semiconductor XC6419DA02MR Datasheet HTML 12Page - Torex Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 29 page
background image
8/29
XC6419 Series
■OPERATIONAL DESCRIPTION
The voltage divided by resistors Rx1 and Rx2 is compared with the internal reference voltage by the error amplifier. The
P-channel MOSFET connected to the VOUT pin is then driven by the subsequent output signal. The output voltage at the
VOUT pin is controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit
operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the EN pin's signal.
<CL Auto-Discharge Function>
XC6419xB/Bx/xD/Dx series can quickly discharge the electric charge at the output capacitor (CL) through the N-channel
transistor located between the VOUT pin and the VSS pin (refer to the BLOCK DIAGRAM) when a low level signal is applied
to the EN pin. The CL discharge resistance is set to 550Ω when VIN is 6.0V (TYP.) and VOUT is 4.0V (TYP.). Moreover,
discharge time of the output capacitor (CL) is set by the CL auto-discharge resistance (R) and the output capacitor (CL). By
setting time constant of a CL auto-discharge resistance value [R] and an output capacitor value (CL) as τ(τ=C x R), the
output voltage after discharge via the N channel transistor is calculated by the following formulae.
V = VOUT x e
–t/τ, or t = τln(VOUT (E) / V)
where
V: Output voltage after discharge, VOUT (E): Output voltage, t: Discharge time,
τ: CL auto-discharge resistance RDCHG×CL capacitance C
CL high-speed discharge function can be set by each regulator.
<Current Limiter, Short-Circuit Protection>
The XC6419 series includes a fold-back circuit, which aid the operations of the current limiter and circuit protection. When
the load current reaches the current limit level, the fold-back circuit operates and output voltage drops. As a result of this
drop in output voltage, output current also decreases. When the output pin is shorted, the output current flows go down to
30mA / ch1 and 15mA/ch2 (TYP.).
<EN Pin>
Each regulator can be shut-downed via the signal from the EN pin with the XC6419 series. In shutdown mode, output at
the VOUT pin will be pulled down to the VSS level via Rx1 & Rx2. However, as for the XC6419xB/Bx/xD/Dx series, the CL
auto-discharge resistor is connected in parallel to Rx1 and Rx2 while the power supply is applied to the VIN pin.
Therefore, time until the VOUT pin reaches the VSS level becomes short. The output voltage becomes unstable, when the
EN pin is open. If this IC is used with the correct output voltage for the EN pin, the logic is fixed and the IC will operate
normally. However, supply current may increase as a result of through current in the IC's internal circuitry when medium


Similar Part No. - XC6419DA02MR

ManufacturerPart #DatasheetDescription
logo
Torex Semiconductor
XC6419DA01ER TOREX-XC6419DA01ER Datasheet
767Kb / 29P
   Dual LDO Regulator (ch1: 300mA, ch2: 100mA) with ON/OFF Switch
XC6419DA01ER-G TOREX-XC6419DA01ER-G Datasheet
767Kb / 29P
   Dual LDO Regulator (ch1: 300mA, ch2: 100mA) with ON/OFF Switch
XC6419DA01MR TOREX-XC6419DA01MR Datasheet
767Kb / 29P
   Dual LDO Regulator (ch1: 300mA, ch2: 100mA) with ON/OFF Switch
XC6419DA08ER TOREX-XC6419DA08ER Datasheet
767Kb / 29P
   Dual LDO Regulator (ch1: 300mA, ch2: 100mA) with ON/OFF Switch
XC6419DA08ER-G TOREX-XC6419DA08ER-G Datasheet
767Kb / 29P
   Dual LDO Regulator (ch1: 300mA, ch2: 100mA) with ON/OFF Switch
More results

Similar Description - XC6419DA02MR

ManufacturerPart #DatasheetDescription
logo
Torex Semiconductor
XC6419 TOREX-XC6419_1 Datasheet
767Kb / 29P
   Dual LDO Regulator (ch1: 300mA, ch2: 100mA) with ON/OFF Switch
XC6228 TOREX-XC6228 Datasheet
689Kb / 21P
   300mA High Speed LDO Regulator with ON/OFF Switch
XC6238 TOREX-XC6238 Datasheet
1Mb / 28P
   300mA High Speed LDO Regulator with ON/OFF Switch
XC6415 TOREX-XC6415_1 Datasheet
521Kb / 22P
   Dual LDO Regulators with ON/OFF Switch
XC6415 TOREX-XC6415 Datasheet
466Kb / 23P
   Dual LDO Regulators with ON/OFF Switch
logo
Richtek Technology Corp...
RT9012 RICHTEK-RT9012_11 Datasheet
316Kb / 11P
   300mA Dual LDO Regulator with POR
RT9055 RICHTEK-RT9055 Datasheet
208Kb / 9P
   300mA Dual LDO Regulator
RT9012 RICHTEK-RT9012 Datasheet
314Kb / 11P
   300mA Dual LDO Regulator with POR
logo
Torex Semiconductor
XC6224 TOREX-XC6224 Datasheet
490Kb / 26P
   150mA High Speed LDO Voltage Regulator with ON/OFF Switch
logo
Catalyst Semiconductor
CAT6221 CATALYST-CAT6221 Datasheet
761Kb / 11P
   300mA CMOS Dual LDO Regulator
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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