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Overview
| Topology | Buck Converter |
| Input voltage | 16-100 V |
| Switching frequency | 75-850 kHz |
| Output 1 | 12.24 V / 10 A |
| IC revision | 00 |
Description
Demonstration circuit 2641A is a single output synchronousbuck converter featuring the LTC7801EUFD in the24-lead QFN package. The input voltage range is from16V to 100V and the output is 12V/10A. The DC2641A isconfigured with a sense resistor for over current protection.Inductor DCR current sensing is optional.
Features
- Wide VIN Range: 4V to 140V (150V Abs Max)
- Wide Output Voltage Range: 0.8V to 60V
- Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE)
- Low Operating IQ: 40μA (Shutdown = 10μA)
- 100% Duty Cycle Operation
- No External Bootstrap Diode Required
- Selectable Gate Drive UVLO Thresholds
- Onboard LDO or External NMOS LDO for DRVCC
- EXTVCC LDO Powers Drivers from VOUT
- Phase-Lockable Frequency (75kHz to 850kHz)
- Programmable Fixed Frequency (50kHz to 900kHz)
- Selectable Continuous, Pulse-Skipping or Low RippleBurst Mode® Operation at Light Loads
- Adjustable Burst Clamp
- Power Good Output Voltage Monitor
- Programmable Input Overvoltage Lockout
- Small 24-Lead 4mm × 5mm QFN or TSSOP Packages
Typical applications
- High Voltage Battery Operated Systems
- Automotive and Industrial Power Systems
- Telecommunications Power Systems
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (mm) | f (mm) | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Wire Type | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 62000211121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 4 | – | – | – | – | – | – | – | – | 2 | Single | – | 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 | – | – | – | – | – | – | – | – | 8 | Dual | – | Pin Header | Straight | 2 | Bag | |
 | 702935000 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WA-SNSR Self-Retaining Spacer | 12.7 | 4.8 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
 | 7443633300 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCF SMT High Current Inductor | 20.8 | – | 33 | 13.3 | 9.5 | 11 | 12.54 | 12 | Flat | 2 | – | 13.5 | – | – | 12 | – | ||
 | 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 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 62000211121 | SPEC | – |
| 62000821121 | SPEC | – |
| 702935000 | SPEC | – |
| 7443633300 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 60800213421 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (mm) | f (mm) | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Wire Type | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|
