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SC4519H

Features: Integrated 3 Amp switch600kHz frequency of operationCurrent mode controllerSynchronizable to higher frequency up to 1.2MHzPrecision enable thresholdSO-8 EDP package. Lead free product, fully WEEEand RoHS compliantApplicationXDSL modemsCPE equipmentDC-DC point of load applicationsPortabl...

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SeekIC No. : 004485636 Detail

SC4519H: Features: Integrated 3 Amp switch600kHz frequency of operationCurrent mode controllerSynchronizable to higher frequency up to 1.2MHzPrecision enable thresholdSO-8 EDP package. Lead free product, fu...

SC4519H Data Sheet

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Part Number:
SC4519H
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/7

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Product Details

Description



Features:

Integrated 3 Amp switch
600kHz frequency of operation
Current mode controller
Synchronizable to higher frequency up to 1.2MHz
Precision enable threshold
SO-8 EDP package. Lead free product, fully WEEE
and RoHS compliant


Application

XDSL modems
CPE equipment
DC-DC point of load applications
Portable equipment


Specifications

Parameter
Symbol
Limits
Units
Input Supply Voltage
VN
-0.3 to +28 (1)
V
Boost Pin Above V SW
 ( VBST - V SW)
16
V
Boost Pin Voltage
V BST
-0.3 to +32
V
EN Pin Voltage
V EN
-0.3 to +24
V
FB Pin Voltage
V FB
-0.3 to +6
V
FB Pin Current
I FB
1
mA
SYNC Pin Current
I SYNC
1
mA
Thermal Impedance Junction to Ambient
JA
36.5(2)
°C/W
Operating Ambient Temperature Range
TA
-40 to +85
°C
Maximum Junction Temperature
TJ
+150
°C
Storage Temperature Range
T STG
-65 to +150
°C
Lead Temperature (Soldering) 10 sec
T LEAD
300
°C
ESD Rating (Human Body Model)
ESD
2
kV



Description

The SC4519H is a current mode switching regulator with an integrated switch, operating at 600kHz with separate sync and enable functions. The integrated switch allows for cost effective low power solutions (peak switch current 3 amps). The sync function allows customers to synchronize to a faster clock in order to avoid frequency beating in noise sensitive applications. High frequency of operation allows for very small passive components.

Current mode operation allows for fast dynamic response and instantaneous duty cycle adjustment as the input varies (ideal for CPE applications where the input is a wall plug power).

The low shutdown current makes SC4519H ideal for portable applications where battery life is important.

The SC4519H is a 600kHz switching regulator synchronizable to a faster frequency from 750kHz to 1.2MHz.




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