SNVS321O January 2005 – December 2015 LP38691 , LP38691-Q1 , LP38693 , LP38693-Q1
PRODUCTION DATA.
The LP3869x low-dropout CMOS linear regulators provide tight output tolerance (2% typical), extremely low dropout voltage (250 mV at 500-mA load current, VOUT = 5 V), and excellent AC performance using ultralow equivalent series resistance (ESR) ceramic output capacitors.
The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow use of the full operating current even in high ambient temperature environments.
The use of a PMOS power transistor means that no DC base-drive current is required to bias it, thus allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LP38691 | TO-252 (3) | 6.58 mm × 6.10 mm |
WSON (6) | 3.00 mm × 3.00 mm | |
LP38693 | SOT-223 (5) | 6.50 mm × 3.56 mm |
WSON (6) | 3.00 mm × 3.00 mm | |
LP38691-Q1 | WSON (6) | 3.00 mm × 3.00 mm |
LP38693-Q1 |
Changes from N Revision (March 2015) to O Revision
Changes from M Revision (February 2015) to N Revision
Changes from L Revision (December 2014) to M Revision
Changes from K Revision (April 2013) to L Revision
Changes from J Revision (April 2013) to K Revision
PIN | I/O | DESCRIPTION | ||||
---|---|---|---|---|---|---|
NAME | TO-252 | WSON | SOT-223 | |||
DAP | — | √ | √ | — | — | WSON Only - The DAP (Exposed Pad) functions as a thermal connection when soldered to a copper plane. See WSON Mounting section for more information. |
EN | — | — | 3 | 1 | I | The EN pin allows the part to be turned ON and OFF by pulling this pin high or low. |
GND | TAB | 2 | 2 | 5 | — | Circuit ground for the regulator. For the TO-252 and SOT-223 packages this is thermally connected to the die and functions as a heat sink when the soldered down to a large copper plane. |
IN | 3 | 1, 6 | 1, 6 | 4 | I | This is the input supply voltage to the regulator. For WSON devices, both IN pins must be tied together for full current operation (250 mA maximum per pin). |
OUT | 1 | 4 | 4 | 3 | O | Regulated output voltage |
SNS | — | 5 | 5 | — | I | WSON Only - Output SNS pin allows remote sensing at the load which eliminate the error in output voltage due to voltage drops caused by the resistance in the traces between the regulator and the load. This pin must be tied to OUT. |