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Hello, Please ask a question about LTC1735_15 Datasheet
# Example questions:
➢ What is the typical internal vcc voltage (vintvcc) when vin is between 6v and 30v?
➢ What is the maximum allowable junction temperature (tj) for the ltc1735cs package, given an ambient temperature (ta) of 25°c and a power dissipation (pd) of 1w?
➢ What is the purpose of the fcb pin and what voltage threshold is required for synchronization?
1. General Information & Package Options:
️· Device Family: LTC1735 (switching regulator)
️· Packages: CS, IS, CGN, IGN, EGN, CF, IF (These likely refer to different package types and possibly temperature grades - more detail would be in the complete datasheet).
️· Temperature Grades: The datasheet references different thermal resistance values based on the specific package suffix (CS/IS, CGN/IGN/EGN, CF/IF).
2. Absolute Maximum Ratings:
️· These specify the limits beyond which the device could be damaged. (The values themselves aren't listed in the snippet.)
3. Junction Temperature (TJ) Calculation:
️· The formula for calculating the junction temperature (TJ) is provided:
- `TJ = TA + (PD • Thermal Resistance)`
- The thermal resistance factor is different for different package types:
■ CS/IS: 110°C/W
■ CGN/IGN/EGN: 130°C/W
■ CF/IF: 110°C/W
4. Electrical Characteristics:
This is the bulk of the data. The snippet lists numerous electrical parameters with their specified ranges or typical values. Here's a categorized summary (without all the specific values to keep it manageable):
️· Internal VCC Regulator:
- `VINTVCC`: Internal VCC Voltage (range, values depend on input voltage)
- `VLDO(INT)`: Internal VCC Load Regulation (percentage)
- `VLDO(EXT)`: EXTVCC Drop Voltage (millivolts)
- `VEXTVCC`: EXTVCC Switchover Voltage (range)
- `VEXTVCC(HYS)`: EXTVCC Hysteresis (volts)
️· Oscillator:
- `fOSC`: Oscillator Frequency (range, in kHz)
- `fH/fOSC`: Maximum Sync Frequency Ratio
- `fFCB(SYNC)`: FCB Pin Threshold For Sync (volts)
️· PGOOD Output (LTC1735F Only):
- `VPGL`: PGOOD Voltage Low (millivolts)
- `IPGOOD`: PGOOD Leakage Current (microamps)
️· General Electrical Parameters:
- Many electrical parameters are listed here. The listing includes:
■ Minimum/Maximum values
■ Typical values
■ Units (volts, amps, kHz, ns, %, etc.)
5. Notes
️· A note mentions that absolute maximum ratings could damage the device.
️· A note is included that explains how to calculate junction temperature.
To effectively use this data, you'll need the full LTC1735 datasheet, which contains:
️· Complete values for all parameters.
️· Graphical representations (typical performance curves).
️· Detailed descriptions of each parameter.
️· Application information.
️· Pin descriptions.
1. General Information & Package Options:
️· Device Family: LTC1735 (switching regulator)
️· Packages: CS, IS, CGN, IGN, EGN, CF, IF (These likely refer to different package types and possibly temperature grades - more detail would be in the complete datasheet).
️· Temperature Grades: The datasheet references different thermal resistance values based on the specific package suffix (CS/IS, CGN/IGN/EGN, CF/IF).
2. Absolute Maximum Ratings:
️· These specify the limits beyond which the device could be damaged. (The values themselves aren't listed in the snippet.)
3. Junction Temperature (TJ) Calculation:
️· The formula for calculating the junction temperature (TJ) is provided:
- `TJ = TA + (PD • Thermal Resistance)`
- The thermal resistance factor is different for different package types:
■ CS/IS: 110°C/W
■ CGN/IGN/EGN: 130°C/W
■ CF/IF: 110°C/W
4. Electrical Characteristics:
This is the bulk of the data. The snippet lists numerous electrical parameters with their specified ranges or typical values. Here's a categorized summary (without all the specific values to keep it manageable):
️· Internal VCC Regulator:
- `VINTVCC`: Internal VCC Voltage (range, values depend on input voltage)
- `VLDO(INT)`: Internal VCC Load Regulation (percentage)
- `VLDO(EXT)`: EXTVCC Drop Voltage (millivolts)
- `VEXTVCC`: EXTVCC Switchover Voltage (range)
- `VEXTVCC(HYS)`: EXTVCC Hysteresis (volts)
️· Oscillator:
- `fOSC`: Oscillator Frequency (range, in kHz)
- `fH/fOSC`: Maximum Sync Frequency Ratio
- `fFCB(SYNC)`: FCB Pin Threshold For Sync (volts)
️· PGOOD Output (LTC1735F Only):
- `VPGL`: PGOOD Voltage Low (millivolts)
- `IPGOOD`: PGOOD Leakage Current (microamps)
️· General Electrical Parameters:
- Many electrical parameters are listed here. The listing includes:
■ Minimum/Maximum values
■ Typical values
■ Units (volts, amps, kHz, ns, %, etc.)
5. Notes
️· A note mentions that absolute maximum ratings could damage the device.
️· A note is included that explains how to calculate junction temperature.
To effectively use this data, you'll need the full LTC1735 datasheet, which contains:
️· Complete values for all parameters.
️· Graphical representations (typical performance curves).
️· Detailed descriptions of each parameter.
️· Application information.
️· Pin descriptions.
| Part No. | LTC1735_15 |
| Manufacturer | LINER |
| Size | 410 Kbytes |
| Pages | 32 pages |
| Description | High Efficiency Synchronous Step-Down Switching Regulator |
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