MAX1549ETL+ - Brand New Maxim Integrated IC Chips
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Description
The MAX1549ETL+ is a dual pulse-width modulation (PWM) step-down controller designed specifically for generating low-voltage chipset and RAM power supplies in notebook computers. It provides high efficiency, excellent transient response, and high DC-output accuracy without the need for complex compensation. The controller features a fixed-frequency, current-mode PWM architecture that allows for interleaved operation of the dual step-down regulators, reducing the input capacitor requirements.
Specifications and features
- Interleaved, fixed-frequency, current-mode control architecture
- 1% VOUT accuracy over line and load
- Main Output (OUT1):
- 0.5V to 2.0V adjustable output
- External reference input for dynamically selectable output voltages
- Four digitally selectable output voltages
- Power-Good and fault blanking during transitions
- Second Output (OUT2):
- 2.5V/1.8V fixed or 0.5V to 2.7V adjustable output
- Accurate differential current-sense inputs
- 100kHz/200kHz/300kHz/400kHz selectable switching frequency
- Output overvoltage/undervoltage protection
- Soft-start and soft-shutdown
- Drives large synchronous-rectifier FETs
- 2V ±0.6% reference output
- Separate enable inputs with accurate threshold voltages
- Separate power-good window comparators
Application Scenarios
The MAX1549ETL+ is ideal for use in notebook computers for tasks such as:
- Dynamically adjustable chipset supplies
- Video/GPU core supplies
- DDR memory termination
- CPU core or VCC supplies
- Fixed chipset/RAM supplies
- Active termination buses
Comparison
Advantages- High efficiency
- Excellent transient response
- High DC-output accuracy
- Interleaved operation reduces input capacitor requirements
- Fixed-frequency, current-mode PWM architecture
Disadvantages- Not suitable for applications outside of notebook computers
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download MAX1549ETL+
- Chipdatas Part: CD86-MAX1549ETL+
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/30 09:36 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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