The TPS799-Q1 low-dropout (LDO) low-power linear regulator offers excellent AC performance with very low ground current. High power-supply rejection ratio (PSRR), low noise, fast start-up, and excellent line and load transient response are provided while consuming a very low 40-μA (typical) ground current. The TPS799-Q1 is stable with ceramic capacitors and uses an advanced BiCMOS fabrication process to yield a dropout voltage of 100 mV (typical) at a 200-mA output. The TPS799-Q1 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over all load, line, process, and temperature variations. The device is fully specified from TJ = –40°C to +125°C and is offered in low-profile, thin SOT-23 and 2-mm × 2-mm WSON packages, designed for wireless handsets and WLAN cards.
PART NUMBER | PACKAGE(1) | PACKAGE SIZE(2) |
---|---|---|
TPS799-Q1 | DRV (WSON, 6) | 2 mm × 2 mm |
DDC (SOT-23, 5) | 2.9 mm × 2.8 mm |
Changes from Revision F (March 2015) to Revision G (June 2023)
Changes from Revision E (January 2012) to Revision F (March 2015)
PIN | TYPE | DESCRIPTION | ||
---|---|---|---|---|
NAME | SOT-23 | WSON | ||
EN | 3 | 4 | I | Driving the enable pin (EN) high turns on the regulator. Driving this pin low puts the regulator into shutdown mode. EN can be connected to IN if not used. |
FB | — | 2 | I | Adjustable version only; this pin is the input to the control loop error amplifier, and is used to set the output voltage of the device. |
GND | 2 | 3, Pad | — | Ground. The pad must be tied to GND. |
IN | 1 | 6 | I | Input supply. |
N/C | — | 5 | — | Not internally connected. This pin must either be left open or tied to GND. |
NR | 4 | 2 | — | Fixed-voltage versions only; connecting an external capacitor to this pin bypasses noise generated by the internal band gap. This capacitor allows output noise to be reduced to very low levels. |
OUT | 5 | 1 | O | Output of the regulator. A small capacitor (total typical capacitance ≥ 2 μF ceramic) is needed from this pin to ground to ensure stability. |