CategoryPower Management - LDO GROUP
The WL2837D series are high accuracy, low noise, high speed, high PSRR, low dropout CMOS Linear regulators with high ripple rejection. The devices offer a new level of cost effective performance in cellular phones, laptop and notebook computers, and other portable devices.
The WL2837D has the fold-back maximum output current which depends on the output voltage. So the current limit functions both as a short circuit protection and as an output current limiter.
The WL2837D regulators are available in standard DFN1x1-4L Package. Standard products are Pb-free and Halogen-free.
– MP3/MP4 Players
– Cellphones, radiophone, digital cameras
– Bluetooth, wireless handsets
– Other portable electronic devices
Input Voltage Range:
Output Voltage Range:
50 μA Typ.
526 mV @VOUT=1.1V, IOUT=0.5A
78 dB @ 1 kHz, VOUT=1.05V
Low Output Voltage Noise:
20 μVRMS Typ
Output Voltage Tolerance:
±1% @ VOUT>2V
Thermal-Overload and Short-Circuit Protection
DescriptionCMOS LDO, High PSRR, High speed, Low noise
Vin Min(V)1, 4
Output Voltage Min(V)0, 9
Output Voltage Max(V)3
Output current 1(mA)500