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IC-Hersteller Semtech

IC-Hersteller (79)

Semtech TS30042

High E! ciency 1A/2A Current-Mode Synchronous Buck Converter, 1MHz

Details

Topologie Abwärtswandler
Eingangsspannung 4.5-40 V
Ausgang 1 5 V / 2 A
IC-Revision 2.2

Beschreibung

The TS30041 (1A) and TS30042 (2A) are DC/DC synchronousswitching regulators with fully integrated power switches,internal compensation, and full fault protection. The switchingfrequency of 1MHz enables the use of small ! lter componentsresulting in minimal board space and reduced BOM costs.The TS30041/42 utilizes current mode feedback in normalregulation PWM mode. When the regulator is placed instandby (EN is low), the device draws less than 10uA quiescentcurrent.The TS30041/42 integrates a wide range of protection circuitryincluding input supply under-voltage lockout, output voltagesoft start, current limit, and thermal shutdown.The TS30041/42 includes supervisory reporting throughthe PG (Power Good) open drain output to interface othercomponents in the system.

Eigenschaften

  • Fixed output voltage choices: 1.5V, 1.8V, 2.5V, 3.3V, and 5Vwith +/- 2% output tolerance
  • Adjustable version output voltage range: 0.9V to (VCC -1V) with +/- 1.5% reference
  • Wide input voltage range: 4.5V to 40V (42V Abs Max)
  • 1MHz +/- 10% ! xed switching frequency
  • Continuous output current: 1A (TS30041), 2A (TS30042)
  • High e" ciency up to 95%
  • Current mode PWM control with PFM mode for improvedlight load e" ciency
  • Voltage supervisor for VOUT reported at the Power Good(PG) pin
  • Input supply under voltage lockout
  • Soft start for controlled startup with no overshoot
  • Full protection for over-current, over-temperature, andVOUT over-voltage
  • SYNC function on EN/SYNC pin to control switching frequency
  • Less than 10uA in standby mode
  • Low external component count

Typische Anwendungen

  • On-card switching regulators/ Industrial power supplies
  • Set-top box, DVD, LCD, LED supply

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Produktserie C Tol. C VR
(V (DC))
Bauform Betriebstemperatur DF
(%)
Keramiktyp L
(mm)
W
(mm)
H
(mm)
Technische Artikelnummer L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(Ω)
RDC max.
(Ω)
fres
(MHz)
Muster
885012205033
STE ALT EAG CAD LTS PSP CAD WCAP-CSGP MLCCs 16 V(DC) 22  nF ±10% 16 0402 3.5 X7R Klasse II 1 0.5 0.5 X7R0402223K016DFCT10000
885012208019
STE ALT EAG CAD LTS PSP CAD WCAP-CSGP MLCCs 10 V(DC) 22  µF ±10% 10 1206 10 X7R Klasse II 3.2 1.6 1.6 X7R1206226K010DFCT10000
744774047
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-PD2 SMT-Speicherdrossel 5848 -40 °C up to +125 °C 5.2 5.8 4.5 4.7 3 5.5 0.056 0.071 33
Artikel Nr. Daten­blatt
885012205033
885012208019
744774047
Muster
Artikel Nr. Daten­blatt Downloads Produktserie C Tol. C VR
(V (DC))
Bauform Betriebstemperatur DF
(%)
Keramiktyp L
(mm)
W
(mm)
H
(mm)
Technische Artikelnummer L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(Ω)
RDC max.
(Ω)
fres
(MHz)
Muster