en

Cart

Your cart is empty.

IC reference design search

Semtech SC192 | Demoboard SC192EVB

Synchronous Buck Converter with Integrated Power Devices

Overview

TopologyOther Topology
Switching frequency650-830 kHz
IC revision2

Description

Project: SC192EVBMain IC: SC192IMLTRTApplication: PowerThe SC192 is a synchronous step-down converter withintegrated power devices designed for battery operatedsystems. The internal power switches reduce systemsize and cost. In addition, an efficiency of 95% can beachieved for significant line and load ranges. The SC192is designed for single-cell Li-Ion battery applications, butalso performs well in fixed 3.3V or 5V input circuits.The SC192 has a flexible clocking scheme. It can besynchronized to an external oscillator, fixed to the internaloscillator, or allowed to modulate the frequency duringlight loads (PSAVE) for maximum battery life, by themethod called pulse frequency modulation (PFM). Shutdownplaces the switches in a high impedance state andturns off all control circuitry to achieve a typical quiescentcurrent of 0.1μA.Line and load regulation is to +/-0.5% of the output voltage.The internal MOSFET switches provide >1A peakcurrent to provide a DC output of at least 700mA.Grounding the ILIM pin reduces the current limit by half.The SC192 can achieve 100% duty cycle for excellentlow dropout performance and comes in a tiny MLPD-10,3 x 3 package having a maximum height of 1mm.

Features

Remarks- BOM is added with Main pdf

2.7V to 7V Input Range􀂋 Output Adjustable from 0.75V to Vin􀂋 Fixed Frequency or PSAVE for MaximumEfficiency Over Wide Load Current Range􀂋 700mA Guaranteed Output Current􀂋 No Schottky Diode Required􀂋 35μA Quiescent Current􀂋 100% Duty Cycle in Dropout􀂋 95% Efficiency􀂋 Fast Transient Response􀂋 Over Temperature Protection􀂋 Space-saving Micro Lead-Frame PackageMLPD-10 3x3

Typical applications

  • Cell Phones
  • PDAs and Mobile Communicators
  • Cordless Phones
  • 1 Li-Ion or 3 NiMH/NiCd Powered Devices
  • Notebook and Subnotebook Computers

Products

Order Code Data­sheet Downloads Product seriesCTol. CVR
(V (DC))
SizeRISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Technical ReferenceL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Poles Samples
885012007061
STE ALT EAG CAD LTS PSP CADWCAP-CSGP MLCCs 50 V(DC)470 pF ±5% 50 0805 NP0 Class I 2 1.25 0.8 NP00805471J050DFCT10000
74404042100
STE ALT EAG CAD LTS PSP SPE IGS CADWE-LQS SMT Power Inductor 4018 4 4 1.8 10 1.2 1.5 150 28
418117170903
STE ALT EAG IGS CADWS-DITV Compact THT with Flat Actuator 2.54 mm 24100 MΩ 8.92 0.025 3
Samples
Order Code Data­sheet Downloads Product seriesCTol. CVR
(V (DC))
SizeRISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Technical ReferenceL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Poles Samples