TOSHIBA TCR4DG125,LF

The TCR4DG series are CMOS general-purpose single-output voltage regulators with an on/off control input, featuring low dropout voltage, low output noise voltage 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 420 mA. They feature over-current protection, over-temperature protection, Inrush current protection circuit and Auto-discharge function. The TCR4DG series are offered in the ultra small plastic mold package WCSP4E (0.645 mm×0.645 mm; t 0.43 mm (max)). It has a low dropout voltage of 193 mV (3.3 V output, Iout = 420 mA) with low output noise voltage of 38 μVrms (2.5 V output) and a load regulation of only ΔVoUT = ±115 mV (Iout = 1 mA ⇔ 420 mA, Cout = 1.0 μF). As small ceramic input and output capacitors can be used with the TCR4DG series, these devices are ideal for portable applications that require high-density board assembly such as cellular phones.

• Low Drop-Out voltage VDO = 193 mV (typ.) at 3.3 V output, Iout = 420 mA
• Low output noise voltage VNO = 38 μVrms (typ.) at 2.5 V output, Iout = 10 mA, 10 Hz ≤ f ≤ 100 kHz
• Fast load transient response (ΔVoUT = ±115 mV (typ.) at Iout = 1 ⇔ 420 mA, Cout = 1.0 μF)
• High ripple rejection (RR = 70 dB (typ.) at 2.5 V output, Iout = 10 mA, f = 1 kHz)
• Over-current protection
• Over-temperature protection
• Inrush current protection circuit
• Auto-discharge function
• Pull down connection between CONTROL and GND
• Ceramic capacitors can be used (CIN = 1.0 μF, Cout = 1.0 μF)
• Ultra small package WCSP4E (0.645 mm×0.645 mm; t 0.43 mm (max))

• portable applications that require high-density board assembly such as cellular phones