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The WL2863C is a linear regulator capable of supplying 250-mA output current. Designed to meet the requirements of RF and analog circuits, the WL2863C device provides low noise, high PSRR, low quiescent current and very good load /line transients.

The device is designed to work with a 1 μF input and 1 μF output ceramic capacitor (no separate noise Operation bypass capacitor is required).

The WL2863C regulators are available in standard CSP-4L Package. Standard products are Pb-free and Halogen-free.

- Cell phones, radiophone, digital cameras
- Bluetooth, wireless handsets
- HiFi products
- Other portable electronic devices


Input Voltage Range:

Output Voltage Range:

Output current:
250 mA

Typ. 100 dB at 10 mA, f = 1 KHz
Typ. 45 dB at 10 mA, f = 1 MHz

Low Dropout:
Typ. 115 mV at 250 mA

Quiescent current:
Typ. 22 μA

Low Output Voltage Noise:
Typ. 6 μVRMS

Output Voltage Tolerance:

Shutdown Current:
Typ. 0.01 μA

UVLO Threshold(V):
Typ. 2.05V

Recommend capacitor:
1 µF

Stable with 1 μF Ceramic Input and Output capacitor

No Noise Bypass Capacitor Required

Thermal-Overload Protection

Order Information
Ordering No. Vout(V) Package
WL2863C12-4/TR 1.2 CSP-4L
WL2863C18-4/TR 1.8 CSP-4L
WL2863C28-4/TR 2.8 CSP-4L
WL2863C29-4/TR 2.9 CSP-4L
WL2863C30-4/TR 3.0 CSP-4L
WL2863C33-4/TR 3.3 CSP-4L