参数资料
型号: RT9173ACS
厂商: Richtek Technology Corporation
英文描述: 1.5A/3A Bus Termination Regulator
中文描述: 1.5A/3A总线终端稳压器
文件页数: 3/10页
文件大小: 197K
代理商: RT9173ACS
RT9173/A
www.richtek-ic.com.tw
DS9173/A-06 March 2002
2
Pin Description
Pin Name
Pin Function
VIN
Power Input
GND
Ground
VCNTL
Gate Drive Voltage
REFEN
Reference Voltage Input and Chip Enable
VOUT
Output Voltage
Absolute Maximum Ratings
Input Voltage
7V
Power Dissipation
Internally Limited
ESD Rating
2KV
Storage Temperature Range
-65
°C to 150°C
Lead Temperature (Soldering, 5 sec.)
260
°C
Package Thermal Resistance
TO-263,
θJC
7.7
°C/W
TO-263,
θJA
19.4
°C/W
SOP-8,
θJC
15.7
°C/W
SOP-8,
θJA
Note
45
°C/W
Note:
θJA is measured with the component mounted on an evaluation PC board in free air that the required area of
copper is 300mm
2 or larger.
Electrical Characteristics
(Limits in standard typeface are for TA = 25
°C, unless otherwise specified:
VIN = 2.5V, VCNTL = 3.3V, VREFEN = 1.25V, COUT = 10
F (Ceramic))
Parameter
Symbol
Test Conditions
Min
Typ
Max Units
Output Offset Voltage
VOS
Fig.1
-20
0
20
mV
IL : 0
→ 1.5A, Fig.1
--
0.8
2
Load Regulation
VLOAD
IL : 0A
→ -1.5A
--
0.8
2
%
VIN
1.8
2.5
--
Input Voltage Range
(DDR 1)
VCNTL
Keep VCNTL
≥ VIN on operation
power on and power off sequences
--
3.3
6
V
Current In Shutdown Mode
ISHDN
VREFEN
< 0.2V, RL = 180, Fig.2
--
50
90
A
Short Circuit Protection
RT9173
Fig.3,4
2.1
--
Current limit
RT9173A
ILIMIT
Fig.3,4
3.0
--
A
Over Temperature Protection
Thermal Shutdown Temperature TSD
3.3V
≤ VCNTL ≤ 5V
125
150
--
°C
Thermal Shutdown Hysteresis
Guaranteed by design
--
50
--
°C
Shutdown Function
Output = High, Fig.5
0.8
--
Shutdown Threshold Trigger
Output = Low, Fig.5
--
0.2
V
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