RT9173 RICHTEK [Richtek Technology Corporation], RT9173 Datasheet - Page 2

• Manufacturer Part Number: RT9173
• Description: 1.5A/3A Bus Termination Regulator
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Note: θ
RT9173/A
Pin Description
Absolute Maximum Ratings
Electrical Characteristics
(Limits in standard typeface are for T
V
www.richtek-ic.com.tw
2
Output Offset Voltage
Load Regulation
Input Voltage Range
(DDR 1)
Current In Shutdown Mode
Short Circuit Protection
Current limit
Over Temperature Protection
Thermal Shutdown Temperature T
Thermal Shutdown Hysteresis
Shutdown Function
Shutdown Threshold Trigger
VIN
GND
VCNTL
REFEN
VOUT
IN
Pin Name
Input Voltage
Power Dissipation
ESD Rating
Storage Temperature Range
Lead Temperature (Soldering, 5 sec.)
Package Thermal Resistance
TO-263,θ
TO-263,θ
SOP-8, θ
SOP-8, θ
= 2.5V, V
copper is 300mm
JA
is measured with the component mounted on an evaluation PC board in free air that the required area of
JC
JA
Parameter
JC
JA
CNTL
Note
Power Input
Ground
Gate Drive Voltage
Reference Voltage Input and Chip Enable
Output Voltage
= 3.3V, V
2
RT9173
RT9173A
or larger.
REFEN
= 1.25V, C
Pin Function
Symbol
V
∆V
V
V
I
I
SHDN
LIMIT
A
SD
OS
IN
CNTL
= 25°C, unless otherwise specified:
LOAD
OUT
Fig.1
I
I
Keep V
power on and power off sequences
V
Fig.3,4
Fig.3,4
3.3V ≤ V
Guaranteed by design
Output = High, Fig.5
Output = Low, Fig.5
L
L
REFEN
: 0 → 1.5A, Fig.1
: 0A → -1.5A
= 10µF (Ceramic))
CNTL
< 0.2V, R
CNTL
Test Conditions
≥ V
≤ 5V
IN
L
on operation
= 180Ω, Fig.2
Min
125
-20
1.8
2.1
3.0
0.8
--
--
--
--
--
--
DS9173/A-06 March 2002
Typ
150
0.8
0.8
2.5
3.3
50
50
--
--
--
--
0
7V
Internally Limited
2KV
-65°C to 150°C
260°C
7.7°C/W
19.4°C/W
15.7°C/W
45°C/W
Max
0.2
20
90
--
--
--
--
--
--
2
2
6
Units
mV
µA
°C
°C
%
V
A
V