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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-20 V |
| Output 1 | 1.2 V / 15 A |
| Output 2 | 1.5 V / 15 A |
Description
Demonstration circuit DC2527A-A features the LTM®4662EY, a dual 15A or single 30A high efficiency, switch mode step-down power μModule regulator. The input voltage range is from 4.5V to 20V. With CPWR bias, input voltage can be as low as 2.375V. The output voltage range is 0.6V to 5.5V. Derating is necessary for certain VIN,VOUT, frequency and thermal conditions. The DC2527A-A offers the TRACK/SS pin allowing the user to program output tracking or soft-start period. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE_PLLIN jumper can select discontinuous conduction mode. The All registered trademarks and trademarks are the property of their respective owners.BOARD PHOTO MODE_PLLIN pin also allows the LTM4662 to synchronize to an external clock signal (between 250kHz and 1MHz). DC2527A-A has the option of choosing both internal and external compensation circuit for LTM4662. Tying the PHASMD pin to different pins generates certain phases of CLKOUT and Channel 2. The LTM4662 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2527A-A.
Features
- Dual 15A or Single 30A Output
- Wide Input Voltage Range: 4.5V to 20V
- 2.375VMIN with CPWR Bias
- Output Voltage Range: 0.6V to 5.5V
- ±1.5% Maximum Total DC Output Error
- Multiphase Current Sharing
- Differential Remote Sense Amplifier, Each Channel
- Current Mode Control/Fast Transient Response
- Up to 96% Efficiency
- Adjustable Switching Frequency (250kHz to 1MHz)
- Frequency Synchronization
- Overcurrent Foldback Protection
- Output Overvoltage Protection
- Internal or External Compensation
- Built-In Temperature Monitor Diode
- SnPb or RoHS Compliant Finish
- Thermally Enhanced (11.25mm × 15mm × 5.74mm) BGA Package
- Pin-Compatible with the LTM4646
Typical applications
- Point-of-Load Power Supplies
- Medical Equipment
- Telecom and Networking Equipment
More information
Products
| Order Code | Datasheet | Downloads | Status | Product series | Pins (Value) (pcs) | Rows | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 60800213421 | SPEC | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm Jumper with Test Point | 2 | – | Jumper | – | 3 | Bag | |
 | 62000211121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 2 | Single | Pin Header | Straight | 2 | Bag | |
 | 62000411121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 4 | Single | Pin Header | Straight | 2 | Bag | |
 | 62000621121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Dual Pin Header | 6 | Dual | Pin Header | Straight | 2 | Bag | |
 | 62000821121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Dual Pin Header | 8 | Dual | Pin Header | Straight | 2 | Bag |
| Order Code | Datasheet | |
|---|---|---|
| 60800213421 | SPEC |
| 62000211121 | SPEC |
| 62000411121 | SPEC |
| 62000621121 | SPEC |
| 62000821121 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Product series | Pins (Value) (pcs) | Rows | Gender | Type | IR (A) | Packaging | Samples |
|---|