The LDCL015XX series is a 150mA current, 1.8V~5.5V input voltage, ultra low dropout linear regulator IC, no input or output capacitor required, with low static current, low noise, no output capacitor and other characteristics, very suitable for low power battery powered applications, can be applied to mobile phones, PDA and other portable devices
The LDCL015XX and LDCL015XX33 are 150 mA capless ultra low drop linear regulator ICs from STMicroelectronics. The document states an input voltage range of 1.8 V to 5.5 V, a typical dropout voltage of 50 mV, ±2% output voltage accuracy, and stable operation with no input or output capacitor. The LDCL015XX33 is fixed at 3.3 V; the LDCL015XX is adjustable from 0.8 V in 100 mV steps. Both are offered in a SOT23 5-lead package.
The datasheet covers the block diagram, pin configuration, typical application schematics, maximum ratings, electrical characteristics, typical performance characteristics, application information, package mechanical data, and revision history. Application information includes general operation, thermal and short-circuit protection, output voltage setting for the ADJ version, and the Enable pin. The Enable logic control puts the device in shutdown mode, reducing total current consumption to less than 1 µA; short-circuit constant current limit and thermal protection are also included.
| Input voltage range | 1.8 V to 5.5 V |
|---|---|
| Maximum output current | 150 mA |
| Dropout voltage | 50 mV typical at 100 mA |
| Output voltage accuracy | ±2% |
| Operating temperature range | -40 °C to 125 °C |
| Package | SOT23 5-lead |
| Supply voltage rejection | 52 dB typical at low frequencies |
| Shutdown current | Less than 1 µA |
| Output voltage options | Fixed and adjustable; adjustable from 0.8 V in 100 mV steps |
The LDCL015XX operates from an input voltage of 1.8 V to 5.5 V.
No input or output capacitor is required; the device is stable with no input or output capacitor.
It provides 150 mA of maximum current.
The total current consumption is reduced to less than 1 µA in shutdown mode.