The TPS786 family of low-dropout (LDO) low-power linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in small outline, SOT223-6 and DDPAK-5 packages. Each device in the family is stable, with a small 1-μF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 390 mV at 1.5 A). Each device achieves fast start-up times (approximately 50 μs with a 0.001-μF bypass capacitor) while consuming very low quiescent current (265 μA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 μA. The TPS78630 exhibits approximately 48 μVRMS of output voltage at 3-V output noise with a 0.1-μF bypass capacitor. Applications with analog components that are noise sensitive, such as portable RF electronics, benefit from the high PSRR, low noise features, and the fast response time.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS786 | TO-263 (5) | 10.16 mm × 8.42 mm |
SOT-223 (6) | 6.50 mm × 3.50 mm | |
SON (8) | 3.00 mm × 3.00 mm |
Changes from L Revision (October 2010) to M Revision
Changes from K Revision (August, 2010) to L Revision
Changes from J Revision (May, 2009) to K Revision
PIN | I/O | DESCRIPTION | |||
---|---|---|---|---|---|
NAME | SOT-223 | TO-263 | SON | ||
NR | 5 | 5 | 5 | — | Noise-reduction pin for fixed versions only. An external bypass capacitor, connected to this terminal, in conjunction with an internal resistor, creates a low-pass filter to further reduce regulator noise. |
EN | 1 | 1 | 8 | I | The EN terminal is an input that enables or shuts down the device. When EN is a logic high, the device is enabled. When the device is a logic low, the device is in shutdown mode. |
FB | 5 | 5 | 5 | I | Feedback input voltage for the adjustable device. |
GND | 3, 6 | 3, TAB | 6 | — | Regulator ground |
IN | 2 | 2 | 1, 2 | I | Input supply |
OUT | 4 | 4 | 3, 4 | O | Regulator output |