TS2515 Datasheet, PDF (1/7 Pages) Taiwan Semiconductor Company, Ltd – 3A / 380KHz PWM Buck Converter

TS2515
3A / 380KHz PWM Buck Converter
SOP-8
Pin Definition:
1. N/C
8. SS
2. Vcc
7. EN
3. SW
6. NC
4. Vss
5. FB
General Description
TS2515 consists of step-down switching regulator with PWM control. These devise include a reference voltage
source, oscillation circuit, error amplifier, internal PMOS and etc. TS2515 provides low-ripple power, high efficiency,
and excellent transient characteristics. The PWM control circuit is able to the duty ratio linearly form 0 up to 100%. An
enable function, an over current protect function and short circuit protect function are built inside, and when OCP or
SCP happens, the operation frequency will be reduced. Also, an internal compensation block is built in to minimum
external component count. With the addition of an internal P-channel Power MOS, a coil, capacitors, and a diode
connected externally, these ICs can function as step-down switching regulators. They serve as ideal power supply
units for portable devices when coupled with the SOP-8L package, providing such outstanding features as low current
consumption. Since this converter can accommodate an input voltage up to 23V, it is also suitable for the operation
via an AC adapter.
Features
● Input Voltage: 4.5V~23V
● Output Voltage: 1.222V~Vcc
● Duty Ratio: 0%~100% PWM Control
● Oscillation Frequency: 380kHz typ.
● Soft-Start (SS), Current Limit (CL), Enable Function
● Thermal Shutdown Function
● Short Circuit Protect (SCP)
● Built-in Internal SW P-Channel MOSFET
Ordering Information
Part No.
TS2515CS RL
Package
SOP-8
Packing
2.5Kpcs / 13” Reel
Application
● Simple High-efficiency Step down Regulator
● On-Card Switching Regulators
Absolute Maximum Rating
Parameter
Symbol
Rating
Unit
VCC Pin Voltage
V_CC
Vss -0.3 to Vss +25
V
Feedback Pin Voltage
V_FB
Vss -0.3 to VCC
V
ON/OFF Pin Voltage
V_EN
Vss -0.3 to VCC +0.3
V
Switch Pin Voltage
V_SW
Vss -0.3 to VCC +0.3
V
Power Dissipation
P_D
Internally limited
mW
Storage Temperature Range
T_ST
-40 to +150
ºC
Operating Temperature Range
T_OP
-20 to +125
ºC
Junction Temperature Range
T_J
-40 to +150
ºC
Operating Supply Voltage
V_OP
+4.5 to +23
V
Thermal Resistance from Junction to case
θ_JC
25
℃/W
Thermal Resistance from Junction to ambient
θ_JA
70
℃/W
Note: θJA is measured with the PCB copper area (need connect to SW pins) of approximately 1 in²(Multi-layer)
1/7
Version: A09