Packaging information
| Package | Pins HTSSOP (PWP) | 24 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 2,000 | LARGE T&R |
Features for the TPS65301-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified with the Following Results
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C4B
- Input VIN Range 5.6 V to 40 V, With Transients up to 45 V
- 5.45-V Switch-Mode Regulator With Integrated High-Side
Switch
- Recommended Switch-Mode Frequency Range 2 MHz to 3 MHz
- Overcurrent Protection and 1.2-A Peak Switch Current
- One Linear Regulator 5 V ±2%
- Two Linear Regulator Controllers With 3.3-V and 1.2 V ±2%
- Status Indicator Output of IGN_EN Input
- Soft Start on IGN_EN and EN
- External Clock Input for Synchronization
- Programmable Power-On-Reset Delay, Reset-Function Filter Timer for Fast Negative Transients
- Voltage Supervisor for the Following
Supplies
- VREG, 3.3 V, 1.2 V
- Thermally Enhanced 24-Pin HTSSOP or 24-Pin VQFN Package
- Protected 5-V Sensor Supply Output, Which Tracks 3.3-V Supply
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Description for the TPS65301-Q1
The TPS65301-Q1 power supply is a combination of a single switch-mode buck power supply and three linear regulators. This is a monolithic high-voltage switching regulator with an integrated 1.2-A peak current switch, 45-V power MOSFET, one low-voltage linear regulator, two voltage-regulator controllers and a protected sensor supply.
The device has a voltage supervisor which monitors the output of the switch-mode power supply, the 3.3-V linear regulator, and the 1.2-V linear regulator. An external timing capacitor is used to set the power-on delay and the release of the reset output nRST. This reset output is also used to indicate if the switch-mode supply, the 3.3-V linear regulator supply, or the 1.2-V linear regulator supply is outside the set limits. The protected sensor supply 5VS tracks the 3.3-V linear regulator within the specified limits.
The TPS65301-Q1 device has a switching frequency range from 2 MHz to 3 MHz, allowing the use of low-profile inductors and low-value input and output ceramic capacitors. External loop compensation gives the user the flexibility to optimize the converter response for the appropriate operating conditions.
This device has built-in protection features such as soft start on IGN_EN ON or enables cycle, pulse-by-pulse current limit, thermal sensing, and shutdown due to excessive power dissipation.
For all available packages, see the orderable addendum at the end of the data sheet.