The TPIC74100 is a switch-mode regulator with integrated switches for voltage-mode control. With the aid of external components (LC combination), the device regulates the output to 5 V ±3% for a wide input-voltage range.

The TPIC74100 offers a reset function to detect and indicate when the 5-V output rail is outside of the specified tolerance. This reset delay is programmable using an external timing capacitor on the REST pin. Additionally, an alarm (A_OUT) feature is activated when the input supply rail V_driver is below a prescaled specified value (set by the A_IN pin).

The TPIC74100 has a frequency-modulation scheme to minimize EMI. The clock modulator permits a modulation of the switching frequency to reduce interference energy in the frequency band.

The 5Vg output is a switched 5-V regulated output with internal current limiting to prevent RESET from being asserted when powering a capacitive load on the supply line. This function is controlled by the 5Vg_ENABLE pin. If there is a short to ground on this output (5Vg output), the output self-protects by operating in a chopping mode. This does, however, increase the output ripple voltage on V_OUT during this fault condition.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device HBM ESD Classification level 1B for pin 7 (L2), pin 8 (VOUT), pin 9 (5Vg)
  • Device HBM ESD Classification 2 for pins 1–6 and 10–20
  • Device CDM ESD Classification Level C4B
• Switch-Mode Regulator
  • 5 V ±2%, Normal Mode
  • 5 V ±3%, Low-Power or Crossover Mode
• Switching Frequency, 440 kHz (typical)
• Input Operating Range, 1.5 V to 40 V, (Vdriver)
  • 1-A Load-Current Capability
  • 200-mA Load-Current Capability Down to 2-V Input (Vdriver)
  • 120-mA Load-Current Capability Down to 1.5-V Input (Vdriver)
• Enable Function
• Low-Power Operation Mode
• Switched 5-V Regulated Output on 5Vg With Current Limit
• Programmable Slew Rate and Frequency Modulation for EMI Consideration
• Reset Function With Deglitch Timer and Programmable Delay
• Alarm Function for Undervoltage Detection and Indication
• Thermally Enhanced Package for Efficient Heat Management

• Topology
• Buck-Boost
• Vin (Min) (V)
• 1.5
• Vin (Max) (V)
• 40
• Vout (Max) (V)
• 5
• Vout (Min) (V)
• 5
• Duty cycle (Max) (%)
• 99
• Features
• Enable, Light Load Efficiency, Power Good, Synchronous Rectification
• Switch current limit (Typ) (A)
• 1.5
• Switching frequency (Min) (kHz)
• 330
• Switching frequency (Max) (kHz)
• 550
• Iq (Typ) (mA)
• 0.1
• Iout (Max) (A)
• 1
• Rating
• Automotive

TPIC74100-Q1的完整型号有：TPIC74100QPWPRQ1，以下是这些产品的关键参数及官网采购报价：

TPIC74100QPWPRQ1，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPIC74100QPWPRQ1的批量USD价格：1.646（1000+）

TPIC74100-Q1 PSpice Transient Model

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