Datasheet

Background
1-2
1.1 Background
The purpose of the TPS78633EVM is to facilitate evaluation of the TPS786xx,
TPS795xx and TPS796xx families of devices. The TPS78633EVM consists of
the SLVP207 PCB, one TPS78633 3.3-V, 1.5-A linear regulator in a TO–263
package, and supporting passive components. The SLVP207 PCB is
designed to accommodate multiple devices with similar pinouts in different
packages (i.e., TO–220, TO–263, or SOT–223). Specifically, in addition to the
TPS786xx, TPS795xx and TPS796xx families, the SLVP207 can be used with
the UCx82, UCx85, TPS755xx, TPS756xx, TPS757xx, TPS758xx,
TPS759xx, TPS725xx, and TPS726xx families as well as any other device in
the same package with the same pinout.
The TPS786xx, TPS795xx, and TPS796xx families of parts feature high
output currents, and high PSRR and low output noise. Additional features, as
well as detailed specifications of the two families of regulators, can be found
in the TPS786xx data sheet (SLVS389), the TPS795xx data sheet (SLVS350),
and the TPS796xx data sheet (SLVS351).
1.2 Performance Specification Summary
Table 1–1 provides a summary of the TPS78633EVM performance
specifications.
Table 1–1.Performance Specification Summary
Specification Test Conditions Min Typ Max Unit
Input voltage 2.7 5.5 V
Output voltage 3.3 V
Output current range 0 1.5 A
1.3 Modifications
The TPS78633EVM is designed to allow parts to be easily interchanged.
Although the EVM is designed with a TPS78633 regulator in a TO–263
package, the SLVP207 EVM board also accommodates the SOT–223
packaged version of the device or any other fixed or adjustable voltage option
of TPS786xx, TPS795xx, or TPS796xx families. Passive elements such as the
output capacitors (C4, C5, and C6) and the input capacitor (C3) are easily
changed. The board accommodates the TPS78601, TPS79501, or TPS79601
adjustable versions with resistors R3 and R4 used as the feedback resistors.
Capacitor C2 is used to reduce the inductance from long input supply leads
and may or may not be necessary, depending on the specific test setup. With
JP1 open, the device is enabled. Shorting JP1 disables the device.