Microchip

MCP1603
Demoboard MCP1603EV

MCP1603 BUCK CONVERTER EVALUATION BOARD USER’S GUIDE

Topologie: Buck
Eingangsspannung (min.): 2.70 V
Eingangsspannung (max.): 5.50 V
Schaltfrequenz (min.): 1500.00 kHz
Schaltfrequenz (max.): 2800.00 kHz
Ausgang 1: 3.30 V / 0.500 A

Erstveröffentlichung am 14.10.2019, Version A vom

Beschreibung

Step-down converter choices include a variety of linear and switching regulators. The MCP1603 500 mA synchronous buck regulator provides a low profile, cost effective, and efficient solution for devices like cellular telephones, USB-powered devices and hand held instruments. The device provides a solution with minimal board space because of the high-frequency operation, which reduces the size requirements of the external inductor and capacitor and the 1 mm maximum height TSOT package.The MCP1603 switches at a fixed frequency of 2.0 MHz when operating at a heavy load. This provides a low-noise, small size solution. When operating at light loads, the MCP1603 changes operation to a pulse frequency modulation (PFM) mode to minimize quiescent current drawn from the input source. No intervention is necessary for smooth transition from one mode to another.

Merkmale

  • Compact size and low profile 500 mA converter design.
  • Wide Input voltage range from 2.7V to 5.5V.
  • Five different output voltage settings: 0.8V, 1.2V, 1.8V, 2.5V, and 3.3V.
  • Test points for connecting input voltage source and external load.

Artikel

  Artikel Nr. SPEC Produktserie L
(µH)
L1
(µH)
IR
(A)
IR 1
(A)
ISAT
(A)
ISAT 1
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
RDC1 typ
(mΩ)
RDC1 max.
(mΩ)
fres
(MHz)
fres 1
(MHz)
Muster
744025004 PDF WE-TPC SMT-Speicherdrossel 4.7 4.7 1.35 1.35 1.7 1.7 100 120 100 120 84 84
744031004 PDF WE-TPC SMT-Speicherdrossel 4.7 4.7 1.2 1.2 0.9 0.9 90 105 90 105 75 75
744030003 PDF WE-TPC SMT-Speicherdrossel 3.3 3.3 0.65 0.65 0.72 0.72 198 225 198 225 130 130
744030004 PDF WE-TPC SMT-Speicherdrossel 4.7 4.7 0.48 0.48 0.5 0.5 252 290 252 290 100 100
744031006 PDF WE-TPC SMT-Speicherdrossel 6.8 6.8 0.85 0.85 0.75 0.75 135 156 135 156 45 45