TS2596 Datasheet, PDF (1/6 Pages) Taiwan Semiconductor Company, Ltd – 3A Step Down Switching Voltage Regulator

TS2596
Preliminary
3A Step Down Switching Voltage Regulator
Pin assignment:
1. Input
2. Output
3. Ground
4. Feedback
5. Enable
150KHz Oscillating Frequency
Output Current up to 3A
Enable Input Control
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
— 3.3V, 5V, and adjustable versions
Part No.
Operating Temp.
(Ambient)
Package
— Wide input voltage range, up to 40V
— 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
TS2596CZ5xx
TS2596CZ5
TS2596CM5xx
TS2596CM5
-20 ~ +85 ^oC
TO-220-5L
TO-263-5L
Note: Where xx denotes voltage option, available are
5V and 3.3V. Leave blank for adjustable
version. Contact factory for additional voltage
— Thermal shutdown and current limit protection
options.
— 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
V
ENABLE Pin Input Voltage
Vin (operate)
-0.3V ≤ V ≤ Vin
V
Power Dissipation
P_D
Internal Limited
W
Operating Junction Temperature Range
T_J
-40 ~ +125
o_C
Storage Temperature Range
T_STG
-65 ~ +150
o_C
Lead Soldering Temperature (260 ^oC)
5
S
TS2596
1-6
2003/12 rev. D