|
|
PDF SC4212B Data sheet ( Hoja de datos )
| Número de pieza | SC4212B | |
| Descripción | Very Low Input /Very Low Dropout 1 Amp Regulator | |
| Fabricantes | Semtech | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SC4212B (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
POWER MANAGEMENT
Features
Input Voltage Range from 1.6V to 6.0V
150mV Maximum Dropout @ 1A
Adjustable Output from 0.5V with ± 1% Accuracy
12µA Quiescent Current in Shutdown
Enable Input
250µs Internal Soft-Start
Over Current and Over Temperature Protection
Reverse Blocking from Output to Input
Full Industrial Temperature Range
3mm x 3mm x 1mm MLPD-8 Package
Fully WEEE and RoHS Compliant
Applications
Telecom and Networking Cards
Motherboards and Peripheral Cards
Industrial Applications
Wireless Infrastructure
Medical Equipment
SC4212B
Very Low Input /Very Low Dropout
1 Amp Regulator
Description
The SC4212B is a high performance linear voltage regula-
tor designed for applications requiring very low dropout
voltage at load currents up to 1 Ampere. It operates with
VIN as low as 1.6V and up to 6V, making it useful for a wide
range of different applications and rails. The output
voltage is programmable down to 0.5V, set via an external
resistor divider, or to a fixed setting of 0.5V depending
upon how the FB pin is configured.
The SC4212B has an enable pin to further reduce power
dissipation while shut down. Protection features include
over current protection, over temperature protection and
reverse blocking from output to input. The SC4212B is
available in a 3mm x 3mm MLPD-8 package.
Typical Application Circuit
V IN
EN
C1
SC4212B
VIN VO
EN FB
GND
V O = 0 .5 V
VO
C2
R2
V IN
EN
C1
SC4212B
VIN VO
EN FB
GND
VO = 0.5(R1+R2)
R2
VO
R1 C3
C2
R2
* C3 is a placeholder
Rev. 2.0
© 2015 Semtech Corporation
1 page  
SC4212B
Pin Descriptions
Pin #
1, 4, 5
Pin Name
NC
2 EN
3 VIN
6 VO
7 FB
8 GND
THERMAL PAD
Pin Function
No connection. Do not connect to any node electrically.
Enable input. Driving this pin high turns on the regulator. Driving this pin low shuts off the regula-
tor. If not driven from a control circuit, tie this pin directly to the VIN pin, or via a resistor up to
400kΩ.
Input supply pin. A large bulk capacitance should be placed close to this pin to ensure that the
input supply does not sag below the minimum VIN.
Regulator output pin. Refer to the Applications Information section for output capacitor selection.
Input of the error amplifier. This pin is used to set the output voltage (See typical Application
Circuits on page 1).
Ground pin.
The exposed pad enhances thermal performance and is not electrically connected inside the pack-
age. It is recommended to connect the exposed pad to the ground plane using multiple vias.
Block Diagram
VIN
EN
Reverse Polarity
Protection Circuitry
Over-current and
therm al shutdown
C ircu itry
E n a b le
C ircu itry
V REF
C ircu itry
VO
FB
GND
5 Page 
SC4212B
© Semtech 2015
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright
owner. The information presented in this document does not form part of any quotation or contract, is believed to be
accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any conse-
quence of its use. Publication thereof does not convey nor imply any license under patent or other industrial or intellec-
tual property rights. Semtech assumes no responsibility or liability whatsoever for any failure or unexpected operation
resulting from misuse, neglect improper installation, repair or improper handling or unusual physical or electrical stress
including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the
specified range.
SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-
SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF SEMTECH PRODUCTS
IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer
purchase or use Semtech products for any such unauthorized application, the customer shall indemnify and hold
Semtech and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages
and attorney fees which could arise.
Notice: All referenced brands, product names, service names and trademarks are the property of their respective
owners.
Contact Information
Semtech Corporation
Power Management Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805) 498-2111 Fax: (805) 498-3804
www.semtech.com
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet SC4212B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SC4212B | Very Low Input /Very Low Dropout 1 Amp Regulator | Semtech |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |