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Xinluda Information Technology Co., Ltd Electronic Parts

XB2121-2.5 – LDO Regulator – Xinluda

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Part Number
XB2121-2.5
Manufacturer
Xinluda Information Technology Co., Ltd
Condition
New — trusted and guaranteed
Documentation
Full lot documentation with every shipment

Specifications

Manufacturer
Xinluda Information Technology Co., Ltd
Component Type
Fixed-Output LDO Linear Voltage Regulator
Topology
CMOS Low-Dropout (LDO), Positive
Output Voltage
2.5V fixed (2.45/2.50/2.55V, ±2%)
Input Voltage Range
2V to 6V (6.5V abs. max)
Output Current
>200mA (300mA abs. max output current)
Dropout Voltage
150mV typ (300mV max) @ 100mA
Quiescent Current
25µA typ
Standby Current
0.1µA typ
Ripple Rejection
70dB typ @ 1kHz
Output Noise
30µVrms (10Hz–100kHz)
Line / Load Regulation
4mV typ / 12mV typ
Operating Temperature
-40°C to +85°C
Package
SOT-23-5
Part Status
Active
Availability
Available

About this part

The Xinluda XB2121-2.5 is a fixed 2.5V output, CMOS-process low-dropout (LDO) linear voltage regulator from the XB2121 series. Each device integrates a precision voltage reference, error amplifier, an internal resistor network for output-voltage setting, a current-limit circuit for output protection, and a chip-enable (CE) circuit on the 5-pin version. The combination of high supply-voltage ripple rejection, low dropout, low noise, high output-voltage accuracy, and very low current consumption makes the XB2121-2.5 well suited to space-constrained, battery-powered electronics.

Key Features

Applications

Why Source XB2121-2.5 from Pacific Component Xchange

The XB2121-2.5 is a specialty Xinluda LDO with limited authorized-distributor availability, making it difficult to source through mainstream channels. Pacific Component Xchange is an independent distributor focused on hard-to-find and obsolete power-management ICs and optocouplers. We help engineers and buyers secure these scarce parts with authenticity verification, global shipping, and flexible quantities for both prototype and production runs.

Because this is a Request-For-Quote (RFQ) item, pricing and lead time are confirmed per order against current global inventory. Submit an RFQ today and our sourcing team will return availability, pricing, and lead-time options for the XB2121-2.5 quickly.

Frequently asked questions

What is the XB2121-2.5?

It is a Xinluda XB2121-series CMOS low-dropout (LDO) linear voltage regulator with a fixed 2.5V output in a SOT-23-5 package. It includes an internal voltage reference, error amplifier, current limiting, and a chip-enable pin.

What is the output voltage and accuracy of the XB2121-2.5?

The output is a fixed 2.5V, trimmed to u00b12% accuracy (2.45V minimum, 2.50V typical, 2.55V maximum per the datasheet).

What input voltage and output current does it support?

The recommended input range is 2V to 6V (6.5V absolute maximum). It delivers more than 200mA of output current, with a 300mA absolute-maximum output current rating.

What is the dropout voltage and quiescent current?

Dropout voltage is 150mV typical (300mV max) at 100mA output, with a low 25u00b5A typical quiescent current and 0.1u00b5A typical standby current when disabled via the CE pin.

What package does the XB2121-2.5 come in?

It is supplied in a 5-pin SOT-23-5 surface-mount package, which includes the chip-enable (CE) control pin.

Is the XB2121-2.5 hard to find, and can Pacific Component Xchange source it?

Yes. The XB2121-2.5 has little to no authorized-distributor availability. Pacific Component Xchange sources this scarce part on an RFQ basis with authenticity verification and global shipping. Submit a quote request for current pricing and lead time.

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