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TPIC74101QPWPRQ1

Buck, Boost, Buck-Boost Switching Regulator IC Positive Fixed 5V 2 Output 1A 20-PowerTSSOP (0.173", 4.40mm Width)

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPIC74101QPWPRQ1
Datasheet:

TPIC74101QPWPRQ1 Datasheet (PDF)
Topology:

Buck-Boost
Vin (min) (V):

1.5
Vin (max) (V):

40
Vout (max) (V):

5
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TPIC74101QPWPRQ1 General Description

The TPIC74101-Q1 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 ±2% for a wide input-voltage range.

The TPIC74101-Q1 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 RESET 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 TPIC74101-Q1 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.

Key Features

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%, Buck Mode
- 5 V ±3%, Low-Power or Boost or Boost/
  buck Crossover Mode
Switching Frequency, 380 kHz (typical)
Input Operating Range, 1.5 V to 40 V, (V_driver)
- 1-A Load-Current Capability
- 200-mA Load-Current Capability Down to 2-V Input
  (V_driver)
- 120-mA Load-Current Capability Down to
  1.5-V Input (V_driver)
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

Specifications

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)	285	Switching frequency (max) (kHz)	480
Iq (typ) (mA)	0.1	Iout (max) (A)	1
Rating	Automotive	Operating temperature range (°C)	-40 to 125
Type	Converter	Pin Count	21
Released Date	Apr 14, 2020	Last Modified Date	Mar 7, 2023 4:10 PM UTC