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Manufacturer Part #

MIC49300-1.8WR

DUAL SUPPLY, LV 3.0A LDO

ECAD Model:
Mfr. Name: Microchip
Standard Pkg:
Product Variant Information section
Date Code:
Product Specification Section
Technical Attributes
Attributes Table
Input Voltage-Min: 1.4V
Input Voltage-Max: 6.5V
Output Voltage Fixed: 1.8V
Dropout Voltage-Max: 400mV
Output Current-Max: 3A
Package Style:  SPAK-5
Mounting Method: Surface Mount
Features & Applications

The MIC49300-1.8WR is a high-bandwidth, low-dropout, 3.0 A voltage regulator ideal for powering core voltages of low-power microprocessors. The MIC49300 implements a dual supply configuration allowing for very low output impedance and very fast transient response.

The MIC49300 requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4 V to 6.5 V and the bias supply requires between 3 V and 6.5 V for proper operation. The MIC49300 offers fixed output voltages from 0.9 V to 1.8 V and adjustable output voltages down to 0.9 V.

The MIC49300 requires a minimum of output capacitance for stability, working optimally with small ceramic capacitors. The MIC49300 is available in a 5-pin S-Pak. It operates over a junction temperature range of –40°C to +125°C.

Features:

  • Input Voltage Range:
  • VIN: 1.4 V to 6.5 V
  • VBIAS: 3.0 V to 6.5 V
  • Stable with 1 µF ceramic capacitor
  • ±1% initial tolerance
  • Maximum dropout voltage (VIN-VOUT) of 500 mV over temperature
  • Adjustable output voltage down to 0.9 V
  • Ultra fast transient response (Up to 10 MHz bandwidth)
  • Excellent line and load regulation specifications
  • Logic controlled shutdown option
  • Thermal shutdown and current limit protection
  • Power S-Pak package
  • Junction temperature range: –40°C to 125°C

Applications:

  • Graphics processors
  • PC Add-In Cards
  • Microprocessor core voltage supply
  • Low voltage digital ICs
  • High Efficiency Linear power supplies
  • SMPS post regulators
Pricing Section
Global Stock:
0
USA:
0
On Order:
0
Factory Stock:Factory Stock:
4,368
Factory Lead Time:
8 Weeks
Minimum Order:
192
Multiple Of:
48
Total
$777.60
USD
Quantity
Web Price
48
$4.85
96
$4.11
144
$4.05
240
$3.98
480+
$3.88
Product Variant Information section