AnaSem VRH2851NTX

The VRH series are positive voltage regulators with high speed, low voltage dropout and high accuracy output achieved by low current consumption. The output voltage is guaranteed within ±1% within the given temperature range by Vref controlling the temperature characteristic. It corresponds to the low ESR capacitor as an output stabilization capacitor. The charged ESR capacitor can be discharged with an internal switch by making the EN=VSS, as a result the VOUT quickly returns to the VSS level. To make the current capacity of the output transistor not exceeded, the over-current protection circuit is built in.

• Output voltage range: 0.9V ~ 5.0V (selectable with a step of 0.05V)
• Operating voltage range: 1.6V ~ 6.0V
• High accuracy output voltage: ±1% (VOUT = 1.95V ~ 5.0V) / ±20mV (VOUT = 0.9V ~ 1.9V)
• Maximum output current: 250mA
• Dropout voltage: Typ. 90mV (output = 3.0V, IOUT = 100mA)
• Low current consumption: Typ. 25μA
• High ripple rejection: Typ. 75dB at 1kHz
• Low ESR capacitor: 1.0μF ceramic capacitor
• Operating temperature range: -40°C ~ +85°C
• Built-in over-current protector: Limit current: 300mA
• CL high-speed auto-discharge
• Built-in On/Off circuit
• Small package: SOT-25 (2.9×2.8×1.1mm), LLP-4 (1.2×1.6×0.6mm), SDFN-4 (1.0×1.0×0.4mm)

• Battery powered devices
• Cellular phone
• Digital / Video cameras
• Portable games
• Handheld instruments