TS2596S
Taiwan Semiconductor
1 Version: C1602
2A, 24V, 150kHz Step-Down DC-DC Converter
DESCRIPTION
TS2596S Series are step-down switching regulators
with all required active functions. It is capable of driving
2A load with excellent line and load regulations. These
devices are available in fixed output voltages of 5V,
and an adjustable output version. TS2596S 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.
FEATURES
● Output Voltage: 5V & Adjustable version
● Adjustable Output Voltage 1.23V~19.5V ±4%
● 150kHz ±15% fixed switching frequency
● Voltage Mode Non-synchronous PWM control
● Thermal Shutdown and Current Limit Protection
● ON/OFF Shutdown Control Input
● Soft-Start (SS) Function
● Short Circuit Protect (SCP)
● Operating Voltage Can be up to 24V
● Output Load Current 2A
● Low Power Standby Mode
APPLICATION
● Simple High-efficiency Step down Regulator
● On-Card Switching Regulators
Pin Definition:
1. Input 8. GND
2. SW Output
7. GND
3. Feedback 6. GND
4. Enable 5. GND
Notes: MSL 3 (Moisture Sensitivity Level) per J-STD-020
(T
A
= 25°C unless otherwise specified)
(Note 1)
Supply Voltage V
CC
+28 V
Operating Voltage Range V
OP
+4.5 to +24 V
SW, EN Pin Input Voltage V
SW
, V
EN
-0.3 to V
CC
V
Feedback Pin Voltage V
FB
-0.3 to V
CC
V
Power Dissipation P
D
Internally Limited W
Output Voltage to Ground V
OUT
-1 V
Storage Temperature Range T
ST
-65 to +150
o
C
Operating Temperature Range T
OP
-40 to +125
o
C
(Note 3)
Thermal Resistance Junction to Case R
θJC
15 °C/W
Thermal Resistance Junction to Ambient R
θJA
70 °C/W
