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Overview
| Topology | Buck-Boost Converter |
| Input voltage | 5-36 V |
| Output 1 | 36 V / 12 A |
Description
Demonstration circuit 3189A features the LTM4712, a high efficiency, buck-boost μModule® regulator with a 5V to 36V input voltage range and 1V to 36V output voltage range. The output is capable of 12A in buck and buck-boost modes, and 6A under 12VIN and 24VOUT. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions. For more information, see the LTM4712 data sheet.The DC3189A demo board features a constant-current mode (CCM) to deliver a precise, regulated current while the load may vary.The DC3189A demo board is optimized using a default frequency of 400kHz. The current mode architecture used in the LTM4712 is peak-current mode control. The LTM4712 operates in continuous current mode by default but can be placed in pulse-skipping mode to optimize efficiency at light loads.
Features
- Complete Buck-Boost Switch Mode Power Supply
- VOUT Equal, Greater, Less Than VIN
- Wide Input Voltage Range: 5V to 36V
- Wide Output Voltage Range: 1V to 36V
- 12A in Buck and Buck-Boost Mode, 6A under 12VIN and 24VOUT
- Up to 98% Efficiency
- Peak Current Mode Control
- Adjustable Input or Output Average Current Limits
- Input or Output Current Monitoring
- Power Good Output Signal
- Parallelable for Increased Output Current
- Phase-Lockable Fixed Frequency: 100kHz to 600kHz
- Selectable Forced Continuous/Pulse-Skipping Modes
- VOUT is Disconnected from VIN During Shutdown
- 16mm ×16mm × 8.34mm BGA Package
Typical applications
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012207098 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | 2.5 | 5 GΩ | X7R Class II | 2 | 1.25 | 0.5 | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207100 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 220 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | 3 | 2.3 GΩ | X7R Class II | 2 | 1.25 | 0.5 | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
 | 60800213421 | SPEC | – | 3 files | WR-PHD 2.00 mm Jumper with Test Point | – | – | – | – | -25 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | 2 | – | – | Jumper | – | 3 | Bag | |
 | 62000311121 | SPEC | – | 6 files | WR-PHD 2.00 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 6 | – | – | 3 | Single | – | Pin Header | Straight | 2 | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012207098 | SPEC | |
| 885012207100 | SPEC | |
| 60800213421 | SPEC | – |
| 62000311121 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|