L7985ATR
DC/DC Buck (Step Down) Regulator, Adjustable, 4.5V to 28V In, 600mV to 28V/2A Out, 1MHz, HSOP-8
| Manufacturer | STMICROELECTRONICS |
|---|---|
| Manufacturer Part No | L7985ATRCopy |
| Manufacturer Standard Lead Time | 19 weeks |
| Newark Part No. | Re-Reel07AH6707RL Cut Tape07AH6707 |
| Your Part Number | |
| Technical Datasheet |
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| Packaging Type | Quantity | Unit Price: | Total |
|---|---|---|---|
| Cut Tape | 1 | $2.180 | $2.18 |
| Total Price | $2.18 | ||
| Quantity | Price |
|---|---|
| 1+ | $2.180 |
| 50+ | $1.640 |
| 100+ | $1.510 |
| 250+ | $1.450 |
| 500+ | $1.420 |
| 1000+ | $1.390 |
| 2500+ | $1.340 |
| 5000+ | $1.310 |
Product Information
| Manufacturer | STMICROELECTRONICS |
|---|---|
| Manufacturer Part No | L7985ATRCopy |
| Manufacturer Standard Lead Time | 19 weeks |
| Newark Part No. | Re-Reel07AH6707RL Cut Tape07AH6707 |
| Technical Datasheet | |
| Output Type | Adjustable |
| Regulator Output Type | Adjustable |
| No. of Outputs | 1Outputs |
| Topology | Buck (Step Down) |
| Input Voltage Min | 4.5V |
| Input Voltage Max | 28V |
| Max Output Current | 2A |
| Output Current | 2A |
| IC Case / Package | HSOP |
| No. of Pins | 8Pins |
| IC Mounting | Surface Mount |
| Output Voltage - Nom | - |
| Output Voltage Min | 600mV |
| Output Voltage Max | 28V |
| Switching Frequency Typ | 250kHz |
| Efficiency | - |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 150°C |
| Product Range | - |
| Qualification | - |
| MSL | MSL 3 - 168 hours |
| SVHC | No SVHC (25-Jun-2025) |
| DC / DC Converter IC Case | HSOP |
| Automotive Qualification Standard | - |
| Switching Frequency | 1MHz |
Product Overview
L7985ATR is a step-down switching regulator with a 2.5A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 2A current to the load depending on the application conditions. The input voltage can range from 4.5V to 38V, while the output voltage can be set starting from 0.6V to VIN. Requiring a minimum set of external components, this device includes an internal 250KHz switching frequency oscillator that can be externally adjusted up to 1MHz. Applications include consumer: STB, DVD, DVD recorder, car audio, LCD TV and monitors, industrial: PLD, PLA, FPGA, chargers, networking: XDSL, modems, DC-DC modules, computer: optical storage, hard disk drive, printers, audio/graphic cards, LED driving.
- 2A DC output current, 4.5V to 38V input voltage
- Internal soft-start and enable, low dropout operation: 100% duty cycle
- Voltage feed-forward, zero load current operation
- Overcurrent and thermal protection, 250KHz typical switching frequency
- MOSFET on-resistance is 200mohm typical
- Duty cycle is 100% maximum
- Quiescent current is 2.4mA maximum at (duty cycle = 0, VFB = 0.8V)
- Total standby quiescent current is 20µA typical
- Input pulse width is 100ns minimum at (VS-IN,HI = 3V, VS-IN,LO = 0V)
- Junction temperature range from -40 to 150°C, HSOP8 package
Technical Specifications
| Output Type | Adjustable |
|---|---|
| No. of Outputs | 1Outputs |
| Input Voltage Min | 4.5V |
| Max Output Current | 2A |
| IC Case / Package | HSOP |
| IC Mounting | Surface Mount |
| Output Voltage Min | 600mV |
| Switching Frequency Typ | 250kHz |
| Operating Temperature Min | -40°C |
| Product Range | - |
| MSL | MSL 3 - 168 hours |
| DC / DC Converter IC Case | HSOP |
| Switching Frequency | 1MHz |
| Regulator Output Type | Adjustable |
|---|---|
| Topology | Buck (Step Down) |
| Input Voltage Max | 28V |
| Output Current | 2A |
| No. of Pins | 8Pins |
| Output Voltage - Nom | - |
| Output Voltage Max | 28V |
| Efficiency | - |
| Operating Temperature Max | 150°C |
| Qualification | - |
| SVHC | No SVHC (25-Jun-2025) |
| Automotive Qualification Standard | - |
Technical Docs (2)
Legislation and Environmental
| US ECCN: | EAR99 |
|---|---|
| EU ECCN: | Unknown |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (25-Jun-2025) |
| Download Product Compliance Certificate | Product Compliance Certificate |