SIP21107DT-30-E3

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The Vishay Siliconix SiP21107DT-30-E3 is a BiCMOS low dropout regulator providing a fixed 3 V output with a maximum load current of 150 mA. It operates within an input voltage range of 2.2 V to 6 V and features a typical ground current of 35 µA at a 1 mA load. The device includes a Power OK (POK) error flag pin that indicates under-voltage faults. It utilizes a TSOT-23-5L package and supports stable operation with small ceramic capacitors, offering thermal shutdown and short-circuit protection across an operating temperature range of -40 °C to +85 °C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated Power OK (POK) open-drain error flag pin indicating supply status
• Ultra-low ground current for extended battery life in portable electronics
• Active pull-down circuit during start-up for improved transient response
• Automatic output discharge to ground via internal NMOS in shutdown mode

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Noise-sensitive electronic systems
• Wireless handsets and cellular phones
• Portable digital cameras and PDA devices
• MP3 players and pagers

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

This component has reached End of Life status with the last available purchase date being December 31, 2014. Verification of availability requires checking authorized distributors for remaining stock or obsolete inventory. Designers must confirm lead times and sourcing channels carefully as standard production has ceased.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this part when a fixed 3 V rail is required alongside system health monitoring via the POK pin. It is suitable for applications needing low noise without external bypass capacitors on the BP pin. Ensure input voltage remains above 2.2 V and verify PCB layout supports the TSOT-23-5L package thermal requirements for continuous operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The SiP21107 belongs to the SiP2110x series of 150 mA LDO regulators from Vishay Siliconix. Unlike the SiP21106 which focuses on ultra-low noise, the SiP21107 prioritizes system reliability through its integrated error flag. It shares the same core architecture and package options as the adjustable SiP21108 variant.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Public confirmed substitute: TC1055-3.0VCT713 by Microchip Technology.