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TS2507 Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

Part No. TS2507
Description  0.5A / 330KHz PWM Buck Controller
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Maker  TSC [Taiwan Semiconductor Company, Ltd]
Homepage  http://www.taiwansemi.com
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TS2507 Datasheet(HTML) 1 Page - Taiwan Semiconductor Company, Ltd

   
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TS2507
0.5A / 330KHz PWM Buck Controller
1/9
Version: A07
SOP-8
General Description
The TS2507 integrates Pulse-Width-Modulation (PWM) control circuit into a single chip. These devise include a
reference voltage source, oscillation circuit, error amplifier and etc. TS2507 provides low-ripple power, high efficiency,
and excellent transient characteristics. The PWM control circuit is able to very the duty ratio linearly form 0 up to
100%. This controller also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at
startup. 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 external P-channel Power MOS, a coil, capacitors, and
a diode connected externally, these components can function as step-down switching regulators. They serve as ideal
power supply units for portable devices when coupled with the SOP-8, providing such outstanding features as low
current consumption. Since this converter can accommodate an input
Ordering Information
Part No.
Package
Packing
TS2507CS RL
SOP-8
2.5Kpcs / 13” Reel
Features
Input Voltage: 3.6V~24V
Output Voltage: 0.8V~Vcc
Duty Ratio: 0%~100% PWM Control
Oscillation Frequency: 330kHz typ.
Soft-Start (SS), Current Limit (CL), Enable Function
Thermal Shutdown Function
Short Circuit Protect (SCP)
External SW P-Channel MOSFET
Low ESR Output Capacitor Application
SOP-8 Pb-Free Package
Application
Simple High-efficiency Step down Regulator
On-Card Switching Regulators
Absolute Maximum Rating
Parameter
Symbol
Rating
Unit
VCC Pin Voltage
VCC
VSS - 0.3 to VSS + 26
V
Feedback Pin Voltage
VFB
VSS - 0.3 to VCC
V
ON/OFF Pin Voltage
VEN
VSS - 0.3 to VCC + 0.3
V
Switch Pin Voltage
VSW
VSS - 0.3 to VCC + 0.3
V
Power Dissipation
PD
Internally limited
mW
Storage Temperature Range
TST
-40 to +150
Operating Temperature Range
TOP
-20 to +125
Operating Supply Voltage
VOP
+3.6 to +24
V
Thermal Resistance from Junction to case
θJC
40
/W
Thermal Resistance from Junction to ambient
θJA
120
/W
Pin Definition:
1. EN
5. FB
2. Comp
6. Vss
3. Ocset
7. LX
4. Vcc
5. Gate


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