TC7739FTG中文资料东芝数据手册PDF规格书

2. Features

• AVCC input voltage range: 4.5V to 5.5V

• DCDC converter (CH1 and CH2)

Power voltage

range

Output voltage

(*1) Output current

CH1 3.6V to 5.5V 1.05V 2A

CH2 4.3V to 5.5V 3.3V 2A

4.0V to 5.5V 3.3V 300mA

 Synchronous Current Mode Buck Converters

 Output current 2A and more

 Operation frequency: 2 MHz(CH1),1.5 MHz(CH2)

 Output voltage accuracy: ±1@Ta=25°C

±2@Ta=-40°C to 85°C

 Output voltage ripple: 20mVp-p or less (recommended components use)

 Built in Discharge circuit

 Built in Soft Start function

 Load regulation 0.5

 Line regulation 0.5

 Built in Over Voltage Protection (OVP)

 Built in Under Voltage Protection (UVP)

 Built in Over Current Limitation (OCL)

 Widely current range support by PFM/PWM auto switching

• LDO(CH3 to CH6)

Power supply

voltage range

Output voltage

(*1) Output current

CH3 1.630V to 2.057V 1.15V 0.7A

CH4 1.630V to 2.057V 1.50V 0.6A

CH5 1.95V to 5.50V 1.80V 0.2A

CH6 3.60V to 5.50V 3.30V 0.06A

 Output voltage accuracy: ±1@Ta=25°C

±2@Ta=-40°C to 85°C

 Built in Discharge circuit

 Built in Soft Start function

 Load regulation 0.5

 Line regulation 0.5

 Built in Over Voltage Protection (OVP)

 Built in Under Voltage Protection (UVP)

 Built in Over Current Limitation (OCL)

• Load switch (CH7)

 Rds(on): 62mΩ(Typ.)

 Built in Discharge circuit

 Built in Soft Start function

 Built in Under Voltage Protection (UVP)

 Built in Over Current Limitation (OCL)

• Reset voltage output function

Detection voltage: 3.6V±90mV

Recovery voltage: 3.7V±93mV

Output delay time after detecting voltage: 10μs(Typ.)

Output delay time after recovering voltage: 60μs(Typ.)

• Output parameters can be changed by I2C control.

• Other system protection: Thermal Shutdown (TSD), Under Voltage Lock Out (UVLO)

• Package: P-VQFN32-0505-0.50-001

• Application: Tablet PC, portable devices