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

X  

BD3507HFV Datasheet(PDF) 6 Page - Rohm

No. de pieza BD3507HFV
Descripción Electrónicos  Nch FET Ultra LDO for PC Chipsets
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BD3507HFV Datasheet(HTML) 6 Page - Rohm

Back Button BD3507HFV Datasheet HTML 2Page - Rohm BD3507HFV Datasheet HTML 3Page - Rohm BD3507HFV Datasheet HTML 4Page - Rohm BD3507HFV Datasheet HTML 5Page - Rohm BD3507HFV Datasheet HTML 6Page - Rohm BD3507HFV Datasheet HTML 7Page - Rohm BD3507HFV Datasheet HTML 8Page - Rohm BD3507HFV Datasheet HTML 9Page - Rohm BD3507HFV Datasheet HTML 10Page - Rohm Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 16 page
background image
Technical Note
6/15
BD3507HFV
www.rohm.com
2010.05 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Block Function
AMP
An error amplifier that compares reference voltage (VREF) to Vo and drives Nch FET (Ron=300 mΩ) of output. The
frequency characteristics are optimized so that ceramic capacitors can be used for output capacitors and high-speed
transient response can be achieved. The input voltage range at the AMP section is GND-2.7V and the output voltage
range of the AMP section is GND-VCC. At the time of EN OFF or UVLO, the output is brought to the LOW level and the
output NchFET is turned OFF.
EN
By the logic input pin, regulator ON/OFF is controlled. At the time of OFF, the circuit current is controlled to be 0µA to
reduce the standby current consumption of the apparatus. In addition, EN turns ON FET that can discharge VREF and Vo
and removes excess electric charge to prevent maloperation of IC on the load side. Since there is no electrical
connection with the Vcc terminal as is the case of Di for electrostatic measures, it does not depend on the input sequence.
UVLO
UVLO turned OFF output to prevent output voltage from making maloperation at the time of Vcc reduced voltage. Same
as EN, UVLO discharges VREF and Vo. When voltage exceeds the threshold voltage (TYP 3.8V), UVLO starts output.
CURRENT LIMIT
In the event the output current that exceeds the current (0.6A or more) set inside the IC flows when output is turned ON,
output voltage is attenuated to protect the IC on the load side. When current reduces, output voltage returns to the set
voltage.
SOFT START
Adding external resistor and capacitor to VREF pin can achieve soft-start. By the time constant that is determined by the
time constant of CR, VREF pin becomes dull, and output rises in synchronism with VREF pin. Overshoot of output voltage
or inrush current can be prevented.
VREF
VREF is a reference voltage input pin and sets output voltage. Since there is no electrical connection with the Vcc
terminal as is the case of Di for electrostatic measures, it does not depend on the input sequence.
TSD(Thermal Shut down)
In order to prevent thermal breakdown and thermal runaway of the IC, the output is turned OFF when chip temperature
becomes high. In addition, when temperature returns to the specified temperature, the output is recovered. However,
since the temperature protection circuit is originally built in to protect the IC itself, thermal design within Tj(max) is
requested.
VIN
This is a large-current supply line. The VIN terminal is connected to the rain of output NchFET. Since there is no
electrical connection with the Vcc terminal as is the case of Di for electrostatic measures, it does not depend on the input
sequence. However, because there is body Di of output Nch FET between VIN and Vo, there is electrical connection
(Di-connection) between VIN and Vo. Consequently, when the output is turned ON/OFF by VIN, reverse current flows
from Vo to VIN, to which care must be taken.


Número de pieza similar - BD3507HFV

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Rohm
BD3507HFV ROHM-BD3507HFV Datasheet
227Kb / 6P
   1ch Series Regulator Driver IC
BD3507HFV ROHM-BD3507HFV Datasheet
633Kb / 16P
   Ultra Low Dropout Linear Regulators for PC Chipsets
BD3507HFV ROHM-BD3507HFV_08 Datasheet
633Kb / 16P
   Ultra Low Dropout Linear Regulators for PC Chipsets
More results

Descripción similar - BD3507HFV

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Rohm
BD3506F ROHM-BD3506F_10 Datasheet
534Kb / 15P
   Nch FET Ultra LDO for PC Chipsets
BD3509MUV ROHM-BD3509MUV_10 Datasheet
665Kb / 21P
   Nch FET Ultra LDO for PC Chipsets
BD3504FVM ROHM-BD3504FVM_10 Datasheet
549Kb / 17P
   Nch FET Ultra LDO Controllers for PC Chipsets
BD35281HFN ROHM-BD35281HFN_11 Datasheet
384Kb / 16P
   Nch FET Ultra LDO for Desktop PCs
BD3540NUV ROHM-BD3540NUV_09 Datasheet
642Kb / 17P
   Nch FET Ultra LDOs for Desktop PCs Chipsets with Power Good
BD3507HFV ROHM-BD3507HFV_08 Datasheet
633Kb / 16P
   Ultra Low Dropout Linear Regulators for PC Chipsets
BD3506F ROHM-BD3506F_08 Datasheet
702Kb / 17P
   Ultra Low Dropout Linear Regulators for PC Chipsets
BD3508MUV ROHM-BD3508MUV_09 Datasheet
689Kb / 21P
   Ultra Low Dropout Linear Regulators for PC Chipsets
BD3504FVM ROHM-BD3504FVM_08 Datasheet
681Kb / 17P
   Ultra Low Dropout Linear Regulator Controllers for PC Chipsets
BD3523HFN ROHM-BD3523HFN_09 Datasheet
788Kb / 21P
   Nch FET Ultra LDOs for Desktop PCs
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


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