Datasheet

www.ti.com
(1) See application information section for capacitor selection details.
NC
OUT
2
1
IN
EN
GND
3
5
4
V
I
1 µF
V
O
47 µF
+
C
o
(1)
TPS75601, TPS75615
TPS75618, TPS75625
TPS75633
SLVS329C – JUNE 2001 – REVISED MARCH 2004
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 250 mV at
an output current of 5 A for the TPS75633) and is directly proportional to the output current. Additionally, since
the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output
loading (typically 125 µA over the full range of output current). These two key specifications yield a significant
improvement in operating life for battery-powered systems.
The device is enabled when EN (enable) is connected to a high voltage level (> 2 V). Applying a low voltage
level (< 0.7 V) to EN shuts down the regulator, reducing the quiescent current to less than 1 µA at T
J
= 25°C.
The TPS756xx is offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over
line, load, and temperature ranges. The TPS756xx family is available in a 5-pin TO-220 (KC) and TO-263 (KTT)
packages.
AVAILABLE OPTIONS
T
J
OUTPUT VOLTAGE (TYP) TO-220 (KC) TO-263(KTT)
(1)
3.3 V TPS75633KC TPS75633KTT
2.5 V TPS75625KC TPS75625KTT
-40°C to +125°C 1.8 V TPS75618KC TPS75618KTT
1.5 V TPS75615KC TPS75615KTT
Adjustable 1.22 V to 5 V TPS75601KC TPS75601KTT
(1) The TPS75601 is programmable using an external resistor divider (see application information). Add
T for KTT devices in 50-piece reel. Add R for KTT devices in 500-piece reel.
Figure 1. Typical Application Configuration (For Fixed Output Options)
2