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PDF TS9230 Data sheet ( Hoja de datos )
| Número de pieza | TS9230 | |
| Descripción | 3A Ultra Low Dropout Voltage Regulator | |
| Fabricantes | Taiwan Semiconductor | |
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Hay una vista previa y un enlace de descarga de TS9230 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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TS9230
3A Ultra Low Dropout Voltage Regulator
SOP-8EP
Pin Definition:
1. GND 8. EN
2. FB
7. POK
3. VOUT 6. VCNTL
4. VOUT 5. VIN
General Description
The TS9230 is a 3A ultra low dropout voltage regulator. This product is specifically designed to provide well
supply voltage for front-side-bus termination on motherboards and NB applications. The IC needs two supply
voltages, a control voltage for the circuitry and a main supply voltage for power conversion, to reduce power
dissipation and provide extremely low dropout. The TS9230 integrates multi-functions. A Power-On-Reset (POR)
circuit monitors both supply voltages to prevent wrong operations. A thermal shutdown and current limit functions
protect the device against thermal and current over-loads. A POK indicates the output status with time delay
which is set internally. It can control other converter for power sequence. The TS9230 can be enabled by other
power system. Pulling and holding the EN pin below 0.4V shuts off the output.
Features
● Ultra Low Dropout 200mV(typ) @ IOUT=3A
● Suit for Low ESR Output Capacitor (MLCC)
● 0.5V Reference Voltage
● Fast Transient Response
● Adjustable Output Voltage
● Power-On-Reset for VCNTL and VIN Pins
● Internal Soft-Start
● Under-Voltage Protection
● Current-Limit Protection
● Thermal Shutdown Protection
● Power-OK Output with a Delay Time
Ordering Information
Part No.
Package
Packing
TS9230CS RLG SOP-8EP 2.5Kpcs / 13” Reel
Note: “G” denote for Halogen Free Product
Application
● Telecommunication
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● Notebook
● Mother Board
Absolute Maximum Rating
Parameter
VCNTL Supply Voltage
VIN Supply Voltage
EN and FB Pin Voltage
Power good Voltage
Power Dissipation
Storage Temperature Range
Junction Temperature Range
Operating Temperature Range
Thermal Resistance from Junction to case
Thermal Resistance from Junction to ambient
SOP-8EP
SOP-8EP
SOP-8EP
Symbol
VCNTL
VIN
VI/O
VPOK
PD
TST
TJ
TOP
θJC
θJA
Limit
-0.3 to 7
-0.3 to 6
-0.3 to VCNTL+0.3
-0.3 to 7
2.5
-65 to +150
-40 to 125
-40 to +85
15
40
Unit
V
V
V
V
W
°C
°C
°C
°C/W
°C/W
1/7
Version: A12
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
TS9230
3A Ultra Low Dropout Voltage Regulator
Function Description
Power-On-Reset
A Power-On-Reset (POR) circuit monitors both input voltages at VCNTL and VIN pins to prevent wrong logic
controls. The POR function initiates a soft-start process after the two supply voltages exceed their rising POR
threshold voltages during powering on. The POR function also pulls low the POK pin regardless the output voltage
when the VCNTL voltage falls below its falling POR threshold.
Internal Soft-Start
An internal soft-start function controls rise rate of the output voltage to limit the current surge at start-up. The typical
soft-start interval is about 2mS.
Output Voltage Regulation
An error amplifier working with a temperature compensated 0.5V reference and an output NMOS regulates output
to the preset voltage. The error amplifier designed with high bandwidth and DC gain provides very fast transient
response and less load regulation. It compares the reference with the feedback voltage and amplifies the difference
to drive the output NMOS which provides load current from VIN to VOUT.
Current Limit
The TS9230 monitors the current via the output NMOS and limits the maximum current to prevent load and TS9230
from damages during overload or short circuit conditions.
Under Voltage Protection
The TS9230 monitors the voltage on FB pin after soft-start process is finished. Therefore the UVP is disabling
during soft-start. When the voltage on FB pin falls below the under-voltage threshold, the UVP circuit shuts off the
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output immediately. After a while, the TS9230 starts a new soft-start to regulate output.
Thermal Shutdown
A thermal shutdown circuit limits the junction temperature of TS9230. When the junction temperature exceeds
+160°C, a thermal sensor turns off the output NMOS, allowing the device to cool down. The regulator regulates the
output again through initiation of a new soft-start cycle after the junction temperature cools by 50°C , resulting in a
pulsed output during continuous thermal overload conditions. The thermal shutdown designed.
5/7
Version: A12
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet TS9230.PDF ] | |
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