Datasheet Texas Instruments LM3485
| Manufacturer | Texas Instruments |
| Series | LM3485 |
4.5-35V, Hysteretic Non-Synchronous PFET Buck Controller
Datasheets
LM3485 Hysteretic PFET Buck Controller datasheet
PDF, 1.1 Mb, Revision: H, File published: Dec 28, 2015
Extract from the document
Prices
Status
| LM3485MM | LM3485MM/NOPB | LM3485MMX | LM3485MMX/NOPB | |
|---|---|---|---|---|
| Lifecycle Status | NRND (Not recommended for new designs) | Active (Recommended for new designs) | NRND (Not recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | Yes | No | Yes |
Packaging
| LM3485MM | LM3485MM/NOPB | LM3485MMX | LM3485MMX/NOPB | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 8 | 8 | 8 | 8 |
| Package Type | DGK | DGK | DGK | DGK |
| Industry STD Term | VSSOP | VSSOP | VSSOP | VSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 1000 | 1000 | 3500 | |
| Carrier | SMALL T&R | SMALL T&R | LARGE T&R | |
| Device Marking | S29B | S29B | S29B | S29B |
| Width (mm) | 3 | 3 | 3 | 3 |
| Length (mm) | 3 | 3 | 3 | 3 |
| Thickness (mm) | .97 | .97 | .97 | .97 |
| Pitch (mm) | .65 | .65 | .65 | .65 |
| Max Height (mm) | 1.07 | 1.07 | 1.07 | 1.07 |
| Mechanical Data | Download | Download | Download | Download |
Parametrics
| Parameters / Models | LM3485MM | LM3485MM/NOPB | LM3485MMX | LM3485MMX/NOPB |
|---|---|---|---|---|
| Approx. Price (US$) | 0.52 | 1ku | |||
| Control Mode | Hysteretic | Hysteretic | Hysteretic | |
| Duty Cycle(Max), % | 100 | 100 | 100 | |
| Duty Cycle(Max)(%) | 100 | |||
| Iout(Max), A | 4 | 4 | 4 | |
| Iout(Max)(A) | 4 | |||
| Iq(Typ), mA | 0.25 | 0.25 | 0.25 | |
| Iq(Typ)(mA) | 0.25 | |||
| Number of Phases | 1 | 1 | 1 | |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 | |
| Operating Temperature Range(C) | -40 to 125 | |||
| Package Group | VSSOP | VSSOP | VSSOP | VSSOP |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 | |
| Regulated Outputs(#) | 1 | |||
| Special Features | Enable | Enable | Enable | Enable |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | |
| Switching Frequency(Max)(kHz) | 1000 | |||
| Switching Frequency(Min), kHz | 50 | 50 | 50 | |
| Switching Frequency(Min)(kHz) | 50 | |||
| Type | Controller | Controller | Controller | Controller |
| Vin(Max), V | 35 | 35 | 35 | |
| Vin(Max)(V) | 35 | |||
| Vin(Min), V | 4.5 | 4.5 | 4.5 | |
| Vin(Min)(V) | 4.5 | |||
| Vout(Max), V | 35 | 35 | 35 | |
| Vout(Max)(V) | 35 | |||
| Vout(Min), V | 1.242 | 1.242 | 1.242 | |
| Vout(Min)(V) | 1.242 |
Eco Plan
| LM3485MM | LM3485MM/NOPB | LM3485MMX | LM3485MMX/NOPB | |
|---|---|---|---|---|
| RoHS | See ti.com | Compliant | Not Compliant | Compliant |
| Pb Free | No |
Application Notes
- Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, File published: Jul 21, 2016
Model Line
Series: LM3485 (4)
Manufacturer's Classification
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)
