LTC1778IGN#PBF
DC/DC Controller, Synchronous Buck, 4V to 36V Supply, 1 Output, NSSOP-16
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | LTC1778IGN#PBFCopy |
| Manufacturer Standard Lead Time | 23 weeks |
| Order Code | 4026388 |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price (Incl GST) |
|---|---|
| 1+ | $17.810 ($20.4815) |
| 10+ | $13.880 ($15.962) |
| 25+ | $12.910 ($14.8465) |
| 100+ | $11.820 ($13.593) |
| 300+ | $11.220 ($12.903) |
| 500+ | $11.000 ($12.650) |
Product Information
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | LTC1778IGN#PBFCopy |
| Manufacturer Standard Lead Time | 23 weeks |
| Order Code | 4026388 |
| Technical Datasheet | |
| Control Mode | Current Mode Control |
| Supply Voltage Min | 4V |
| Supply Voltage Max | 36V |
| No. of Outputs | 1Outputs |
| Duty Cycle (%) | - |
| IC Case / Package | NSSOP |
| No. of Pins | 16Pins |
| Switching Frequency | - |
| Topology | Synchronous Buck (Step Down) |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Qualification | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (04-Feb-2026) |
| Automotive Qualification Standard | - |
| Controller IC Case Style | NSSOP |
| No. of Outputs | 1 Output |
Product Overview
LTC1778 is a synchronous step-down switching regulator controller optimized for CPU power. The controller uses a valley current control architecture to deliver very low duty cycles with excellent transient response without requiring a sense resistor. Operating frequency is selected by an external resistor and is compensated for variations in VIN. Discontinuous mode operation provides high efficiency operation at light loads. A forced continuous control pin reduces noise and RF interference, and can assist secondary winding regulation by disabling discontinuous operation when the main output is lightly loaded. Fault protection is provided by internal foldback current limiting, an output overvoltage comparator and optional short-circuit shutdown timer. It is widely used in application such as notebook and palmtop computers, distributed power systems etc.
- No sense resistor required, shutdown supply current is 30µA maximum
- Optimized for high step-down ratios
- Minimum on-time is 50ns typical, power good output voltage monitor
- Extremely fast transient response
- Stable with ceramic COUT
- Dual N-Channel MOSFET synchronous drive
- Operating input voltage range is 4V to 36V
- Adjustable current limit, adjustable switching frequency
- Programmable soft-start, output overvoltage protection
- Operating temperature is -40°C to 125°C, packaging style is 16-lead plastic SSOP
Notes
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
Technical Specifications
| Control Mode | Current Mode Control |
|---|---|
| Supply Voltage Max | 36V |
| Duty Cycle (%) | - |
| No. of Pins | 16Pins |
| Topology | Synchronous Buck (Step Down) |
| Operating Temperature Max | 125°C |
| Qualification | - |
| SVHC | No SVHC (04-Feb-2026) |
| Controller IC Case Style | NSSOP |
| Supply Voltage Min | 4V |
|---|---|
| No. of Outputs | 1Outputs |
| IC Case / Package | NSSOP |
| Switching Frequency | - |
| Operating Temperature Min | -40°C |
| Product Range | - |
| MSL | MSL 1 - Unlimited |
| Automotive Qualification Standard | - |
| No. of Outputs | 1 Output |
Technical Docs (2)
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | Malaysia Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85423990 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .000001 |