CMOS LDO voltage regulators drive up to 420mA for mobile designs
The TCR4DG series includes general-purpose, single-output voltage regulators with on/off control input, low output noise voltage and low inrush current with fixed output voltages between 1.0V and 4.5V.
Small ceramic input and output capacitors can be used with the TCR4DG series, making these devices suitable for mobile applications that require high-density board assembly, such as cell phones. The new regulators are offered in an ultra-small plastic mold WCSP4E package (0.645mmx0.645mm (typical); t:0.43mm (max)) and feature over-current protection, over-temperature protection, inrush current protection, and auto-discharge functionality.
“Mobile designs are becoming increasingly power hungry and are demanding high-current LDOs to fit inside compact designs,” said Talayeh Saderi, senior business development manager for TAEC. “With the new TCR4DG series, we’re providing engineers with 400mA of clean, efficient voltage regulation in a small package – the 420mA LDO.”
The parts feature a VDO of 193mV (typ.) at 3.3V-output with an IOUT of 420mA as well as low VNO output noise of 38μVrms (typ.) at 2.5V-output and IOUT=10mA, 10Hz<=f<= 100kHz. The fast load transient response ⊿VOUT is ±115mV (typ.) from 1 to 420mA with an output capacitance of 1.0μF and the ripple rejection is 70dB (typ.) at 2.5V-output and 10mA at 1kHz.
Next: part numbers
|
Product No. |
Output voltage |
Marking |
Product No. |
Output voltage |
Marking |
|
TCR4DG10 |
1.0 |
A |
TCR4DG25 |
2.5 |
T |
|
TCR4DG105 |
1.05 |
B |
TCR4DG27 |
2.7 |
U |
|
TCR4DG11 |
1.1 |
C |
TCR4DG275 |
2.75 |
V |
|
TCR4DG115 |
1.15 |
D |
TCR4DG28 |
2.8 |
W |
|
TCR4DG12 |
1.2 |
E |
TCR4DG285 |
2.85 |
X |
|
TCR4DG125 |
1.25 |
F |
TCR4DG29 |
2.9 |
Y |
|
TCR4DG13 |
1.3 |
H |
TCR4DG30 |
3.0 |
0 |
|
TCR4DG135 |
1.35 |
J |
TCR4DG31 |
3.1 |
1 |
|
TCR4DG15 |
1.5 |
K |
TCR4DG32 |
3.2 |
2 |
|
TCR4DG175 |
1.75 |
L |
TCR4DG325 |
3.25 |
3 |
|
TCR4DG18 |
1.8 |
M |
TCR4DG33 |
3.3 |
4 |
|
TCR4DG185 |
1.85 |
N |
TCR4DG35 |
3.5 |
5 |
|
TCR4DG19 |
1.9 |
P |
TCR4DG36 |
3.6 |
6 |
|
TCR4DG23 |
2.3 |
R |
TCR4DG42 |
4.2 |
7 |
|
TCR4DG245 |
2.45 |
S |
TCR4DG45 |
4.5 |
8 |
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