The TLV62565/6 devices are synchronous step-down converters optimized for small solution size and high efficiency. The devices integrate switches capable of delivering an output current up to 1.5 A.
The devices are based on an adaptive on time with valley current mode control scheme. Typical operating frequency is 1.5 MHz at medium to heavy loads. The devices are optimized to achieve very low output voltage ripple even with small external components and feature an excellent load transient response.
During light load, the TLV62565/6 automatically enter into Power Save Mode at the lowest quiescent current (50 μA typ) to maintain high efficiency over the entire load current range. In shutdown, the current consumption is reduced to less than 1 μA.
The TLV62565/6 provide an adjustable output voltage via an external resistor divider. The output voltage start-up ramp is controlled by an internal soft start, typically 250 µs. Power sequencing is possible by configuring the Enable (TLV62565) and Power Good (TLV62566) pins. Other features like over current protection and over temperature protection are built-in. The TLV62565/6 devices are available in a SOT-23 5-pin package.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TLV62565 TLV62566 |
SOT-23 (5) | 2.90 mm × 2.80 mm |
Changes from C Revision (July 2015) to D Revision
Changes from B Revision (December 2014) to C Revision
Changes from A Revision (November 2014) to B Revision
Changes from * Revision (October 2013) to A Revision
PIN | I/O/PWR | DESCRIPTION | ||
---|---|---|---|---|
NAME | NUMBER | |||
TLV62565 | TLV62566 | |||
EN | 1 | — | I | Device enable logic input. Logic HIGH enables the device, logic low disables the device and turns it into shutdown. Do not leave floating. |
FB | 5 | 5 | I | Feedback pin for the internal control loop. Connect this pin to the external feedback divider. |
GND | 2 | 2 | PWR | Ground pin. |
PG | — | 1 | O | Power Good open drain output. This pin is high impedance if the output voltage is within regulation. It is pulled low if the output is below its nominal value. It is also low when VIN is below UVLO or thermal shutdown triggers. |
SW | 3 | 3 | PWR | Switch pin connected to the internal MOSFET switches and inductor terminal. Connect the inductor of the output filter to this pin. |
VIN | 4 | 4 | PWR | Power supply voltage input. |