TS2508 Taiwan Semiconductor Company, Ltd. (TSC), TS2508 Datasheet - Page 2

• Manufacturer Part Number: TS2508
• Description: 2a / 330khz Pwm Buck Converter
• Manufacturer: Taiwan Semiconductor Company, Ltd. (TSC)

Electrical Specifications
Block Diagram
Pin Assignment
Characteristics
Feedback Voltage
Quiescent Current
Feedback Bias Current
Shutdown Supply Current
OCSET pin bias current
Switch Current
Line Regulation
Load Regulation
Oscillation Frequency
EN Pin Logic input
threshold voltage
EN Pin Input Current
Soft-Start Time
Internal P-MOS R
Efficiency
OCSET
Name
Vcc
EN
FB
Feedback pin
H:Normal operation (Step-down)
L:Step-down operation stopped (All circuit deactivated)
Add an external resistor to set max switch output
current.
IC power supply pin
DSON
(V
Description
∆V
IN
Symbol
=12V, Ta=25
R
I
OUT
I
OCSET
OCSET
F
V
E
V
V
T
I
I
I
I
I
DSON
SW
OSC
I
SD
SH
FB
SL
SH
SS
FFI
FB
SL
q
/V
OUT
o
I
V
I
V
V
I
SW pin
High (regulator ON)
Low (regulator OFF)
V
V
V
V
V
V
C unless otherwise noted)
OUT
OUT
OUT
FB
EN
CC
EN
EN
CC
CC
CC
OUT
=1.2V force driver off
=0.1A
=0.1A
= 5V, V
= 12V, V
=0V
= 5V~20V, I
=2.5V (ON)
=0.3V (OFF)
= 12V,
= 0.1 to 2A
= 5V
Conditions
2/8
FB
FB
= 0V
2A / 330KHz PWM Buck Converter
= 0V
OUT
I
I
OUT
OUT
=0.2A
Name
= 1A
= 2A
Vss
Vss
SW
SW
GND pin
GND pin
Switch pin. Connect external inductor
& diode here
Switch pin. Connect external inductor
& diode here
0.784
Min
260
2.0
0.3
95
--
--
--
--
--
--
--
--
--
--
--
--
2
0.800
Typ
110
330
100
-10
Description
0.1
0.3
20
70
92
92
--
--
--
3
2
1
4
TS2508
0.816
Max
Version: B07
125
400
140
100
0.5
0.5
0.8
10
--
--
--
--
--
--
5
2
8
Units
KHz
mA
mΩ
mΩ
ms
uA
uA
uA
uA
uA
%
%
%
V
A
V