TCR3DMxxA series

2024-10-28

Rev.5.0

© 2023-2024

Toshiba Electronic Devices & Storage Corporation

1

TOSHIBA CMOS Linear Integrated Circuit Silicon Monolithic

TCR3DMxxA series

300 mA CMOS Low Drop-Out Regulator with inrush current protection circuit

1.

Description

The TCR3DMxxA series are CMOS general-purpose single-output

voltage regulators with an on/off control input, featuring low dropout

voltage, low output noise voltage, fast load transient response and

low inrush current.

These voltage regulators are available in fixed output voltages

between 1.0 V and 4.5 V and capable of driving up to 300 mA. They

feature Overcurrent protection, Thermal shutdown, Inrush current

protection circuit and Auto-discharge.

The TCR3DMxxA series is offered in the ultra small plastic mold

package DFN4D (1.0 mm x 1.0 mm; t 0.37 mm (typ.)) and has a low

dropout voltage of 216 mV (2.5 V output, IOUT = 300 mA) with low

output noise voltage of 38 μVrms (2.5 V output). As small ceramic

input and output capacitors 1.0 μF can be used with the TCR3DMxxA

series, these devices are ideal for portable applications that require

high-density board assembly such as cellular phones.

2.

Applications

Power IC developed for portable applications

3.

Features

• Ultra small package DFN4D (1.0 mm x 1.0 mm; t 0.37 mm (typ.))

• Wide range output voltage line up (VOUT = 1.0 to 4.5 V)

• Low dropout voltage

VDO = 175 mV (typ.) at 3.3 V output, IOUT = 300 mA

VDO = 216 mV (typ.) at 2.5 V output, IOUT = 300 mA

VDO = 297 mV (typ.) at 1.8 V output, IOUT = 300 mA

• Low output noise voltage (VNO = 38 μVrms (typ.) at 10Hz ≤ f ≤ 100kHz)

• High ripple rejection ratio (72 dB (typ.) at 2.5 V output, IOUT = 10 mA, f = 1 kHz)

• Fast load transient response (±80 mV (typ.) at 2.5 V output, IOUT = 1 mA ⇔ 300 mA)

• Overcurrent protection

• Thermal shutdown

• Inrush current protection circuit

• Auto-discharge

• Pull down connection between CONTROL and GND

• Ceramic capacitors can be used (CIN = 1.0 μF, COUT = 1.0 μF)

DFN4D

Weight: 1.1 mg (typ.)

Start of commercial production

2023-11