TS2596
Preliminary
3A Step Down Switching Voltage Regulator
Pin assignment:
1. Input
150KHz Oscillating Frequency
2. Output
Output Current up to 3A
3. Ground
Enable Input Control
4. Feedback
5. Enable
General Description
The TS2596 Series are step-down switching regulators with all required active functions. It is capable of driving 3A load
with excellent line and load regulations. These devices are available in fixed output voltages of 3.3V, 5V, and an
adjustable output version.
The TS2596 series operates at a switching frequency of 150kHz thus allowing smaller sized filter components than what
would be needed with lower frequency switching regulators. It substantially not only reduces the area of board size but
also the size of heat sink, and in some cases no heat sink is required. The ±4% tolerance on output voltage within
specified input voltages and output load conditions is guaranteed. Also, the oscillator frequency accuracy is within ±10%.
External shutdown is included. Featuring 70µA (typical) standby current. The output switch includes cycle-by-cycle current
limiting, as well as thermal shutdown for full protection under fault conditions.
This series are offered in 5-pin TO-263, TO-220 package.
Features
Ordering Information
Guaranteed 3A output current
Operating Temp.
Part No.
Package
TO-220-5L
TO-263-5L
3.3V, 5V, and adjustable versions
(Ambient)
Wide input voltage range, up to 40V
TS2596CZ5xx
TS2596CZ5
Internal oscillator of 150KHz fixed frequency
Wide adjust version output voltage range, from 1.23V
to 25V ±4% max. at over line and load conditions.
Low standby current, typ. 70µA, at shutdown mode
Requires only 4 external components
-20 ~ +85 oC
TS2596CM5xx
TS2596CM5
Note: Where xx denotes voltage option, available are
5V and 3.3V. Leave blank for adjustable
version. Contact factory for additional voltage
options.
Thermal shutdown and current limit protection
P+ product enhancement tested
Applications
LCD Monitors
ADD-ON Cards Switching Regulators
High Efficiency Step-Down Regulators
Efficient Pre-regulator for Linear Regulator
Absolute Maximum Rating
Input Voltage
Vin
+40
-0.3V ≤ V ≤ Vin
Internal Limited
-40 ~ +125
-65 ~ +150
5
V
V
ENABLE Pin Input Voltage
Power Dissipation
Vin (operate)
PD
TJ
W
oC
oC
S
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature (260 oC)
TSTG
TS2596
1-6
2003/12 rev. D