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Hello, Please ask a question about LTC1682-3.3 Datasheet
# Example questions:
➢ What is the shutdown resistance for the shdn pin when vin is 4.4v, and what does this measurement indicate?
➢ What is the typical output noise voltage for the ltc1682-3 at frequencies between 10hz and 100khz, and what component value is used to achieve this noise level?
➢ What limits the output current range when operating at maximum input voltage?
Okay, I've analyzed the provided text. Here's a summary of the key information, broken down into categories:
1. Device Information:
️· Product: LTC1682 (available in C and I versions) - a charge pump/DC-DC converter.
️· Versions:
- LTC1682C: Guaranteed performance from 0°C to 70°C.
- LTC1682I: Guaranteed performance from -40°C to 85°C (extended temperature range).
2. Absolute Maximum Ratings (Not Tested): These are values beyond which the device's life might be impaired. Specific values are not provided in the provided snippet, but this section notes that these ratings exist.
3. Electrical Characteristics (Typical at T = 25°C unless otherwise noted): This is a *very* long table. Here's a summary, organized by category, noting some key values:
️· Input/Output Voltage (VOUT):
- VOUT Line Regulation: 5-20mV (depending on conditions)
- VOUT Load Regulation: 3-10mV (depending on conditions)
- VOUT Dropout Voltage: 50-160mV (depending on version and conditions)
- VOUT Output Noise Voltage: 58-88µVRMS, 500-800µVP-P (depending on version and filter capacitor)
️· Charge Pump Operation:
- Operating Frequency: Not specified but implied to be relatively high.
- VOUT Enable Time: 2ms
- SHDN Input Threshold: 0.4 - 1.6 V
️· Current Consumption:
- SHDN Input Current: -1µA to 1µA (depending on state)
- Feedback Current: 25µA (for LTC1682 set to 5V)
️· Resistance:
- VOUT Shutdown Resistance (to ground): 50-350Ω (depending on conditions)
4. Notes and Explanations:
️· Dropout Voltage: Describes how much the input voltage must exceed the output voltage to maintain regulation.
️· Operating Conditions: The regulated output specification might not apply for all combinations of input voltage and output current due to junction temperature limits.
️· Feedback Current: Highlights that setting the LTC1682 to 5V means that the feedback current is 25µA.
Overall Impression: The text is an excerpt from a datasheet or technical documentation for the LTC1682 charge pump. It's highly technical, focusing on electrical characteristics and operating parameters. The information is critical for engineers designing circuits using this device.
1. Device Information:
️· Product: LTC1682 (available in C and I versions) - a charge pump/DC-DC converter.
️· Versions:
- LTC1682C: Guaranteed performance from 0°C to 70°C.
- LTC1682I: Guaranteed performance from -40°C to 85°C (extended temperature range).
2. Absolute Maximum Ratings (Not Tested): These are values beyond which the device's life might be impaired. Specific values are not provided in the provided snippet, but this section notes that these ratings exist.
3. Electrical Characteristics (Typical at T = 25°C unless otherwise noted): This is a *very* long table. Here's a summary, organized by category, noting some key values:
️· Input/Output Voltage (VOUT):
- VOUT Line Regulation: 5-20mV (depending on conditions)
- VOUT Load Regulation: 3-10mV (depending on conditions)
- VOUT Dropout Voltage: 50-160mV (depending on version and conditions)
- VOUT Output Noise Voltage: 58-88µVRMS, 500-800µVP-P (depending on version and filter capacitor)
️· Charge Pump Operation:
- Operating Frequency: Not specified but implied to be relatively high.
- VOUT Enable Time: 2ms
- SHDN Input Threshold: 0.4 - 1.6 V
️· Current Consumption:
- SHDN Input Current: -1µA to 1µA (depending on state)
- Feedback Current: 25µA (for LTC1682 set to 5V)
️· Resistance:
- VOUT Shutdown Resistance (to ground): 50-350Ω (depending on conditions)
4. Notes and Explanations:
️· Dropout Voltage: Describes how much the input voltage must exceed the output voltage to maintain regulation.
️· Operating Conditions: The regulated output specification might not apply for all combinations of input voltage and output current due to junction temperature limits.
️· Feedback Current: Highlights that setting the LTC1682 to 5V means that the feedback current is 25µA.
Overall Impression: The text is an excerpt from a datasheet or technical documentation for the LTC1682 charge pump. It's highly technical, focusing on electrical characteristics and operating parameters. The information is critical for engineers designing circuits using this device.
| Part No. | LTC1682-3.3 |
| Manufacturer | LINER |
| Size | 186 Kbytes |
| Pages | 12 pages |
| Description | Doubler Charge Pumps with Low Noise Linear Regulator |
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