TC7739FTG中文資料東芝數(shù)據(jù)手冊PDF規(guī)格書

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