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LD49300

Features: ` Input voltage range: VI = 1.4V to 5.5V VBIAS = 3V to 6V` Stable with ceramic capacitor` ±1.5% initial tolerance` Maximum dropout voltage (VI - VO) of 400mV over temperature` Adjustable output voltage down to 0.8V` Ultra fast transient response (up to 10MHz bandwidth)` Excellent ...

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SeekIC No. : 004393043 Detail

LD49300: Features: ` Input voltage range: VI = 1.4V to 5.5V VBIAS = 3V to 6V` Stable with ceramic capacitor` ±1.5% initial tolerance` Maximum dropout voltage (VI - VO) of 400mV over temperature` Adjusta...

LD49300 Data Sheet

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Part Number:
LD49300
Supply Ability:
5000

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

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Upload time: 2024/10/17

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Product Details

Description



Features:

` Input voltage range:
  VI = 1.4V to 5.5V
  VBIAS = 3V to 6V
` Stable with ceramic capacitor
` ±1.5% initial tolerance
` Maximum dropout voltage (VI - VO) of 400mV over temperature
` Adjustable output voltage down to 0.8V
` Ultra fast transient response (up to 10MHz bandwidth)
` Excellent line and load regulation specifications
` Logic controlled shutdown option
` Thermal shutdown and current limit protection
` Junction temperature range: 25°C to 125°C


Application

· Graphics processors
· PC Add-In Cards
· Microprocessor core voltage supply
· Low voltage digital ICs
· High Efficiency Linear power supplies
· SMPS post regulators


Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
VIN Supply voltage -0.3 to 7 V
VOUT Output voltage -0.3 to VIN + 0.3
-0.3 to VBIAS + 0.3		 V
VBIAS BIAS Supply voltage -0.3 to 7 V
VEN Enable input voltage -0.3 to 7 V
PD Power dissipation Internally Limited V
TSTG Storage temperature range -50 to 150 °C
Note: 1 Absolute Maximum Ratings are those values beyond which damage to the device may occur.
Functional Operation under these conditions is not implied.
2 All the values are referred to ground.


Description

The LD49300 is a high-bandwidth, low-dropout, 3.0A voltage regulator, ideal for powering core voltages of low-power microprocessors. The LD49300 implements a dual supply configuration allowing for very low output impedance and very fast transient response. The LD49300 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 1.4V to 5.5V and the bias supply requires between 3V and 6V for proper operation. The LD49300 offers fixed output voltages from 0.8V to 1.8V and adjustable output voltages down to 0.8V. The LD49300 requires a minimum output capacitance for stability, and work optimally with small ceramic capacitors.




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