rt8065 Richtek Technology Corporation, rt8065 Datasheet - Page 4

• Manufacturer Part Number: rt8065
• Description: 3a, 2mhz, Synchronous Step-down Converter
• Manufacturer: Richtek Technology Corporation

Absolute Maximum Ratings
Electrical Characteristics
(V
RT8065
Recommended Operating Conditions
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4
Feedback Reference Voltage
DC Bias Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Error Amplifier
Trans-conductance
Current Sense Trans-resistance R
Switching Frequency
Enable Threshold Voltage
Switch On-Resistance, High
Switch On-Resistance, Low
Peak Current Limit
Under Voltage Lockout
Threshold
WDFN-8L 3x3 ------------------------------------------------------------------------------------------------------ 1.429W
Supply Input Voltage, V
LX Pin Switch Voltage -------------------------------------------------------------------------------------------- −0.3V to (V
Other I/O Pin Voltages ------------------------------------------------------------------------------------------- −0.3V to (V
LX Pin Switch Current -------------------------------------------------------------------------------------------- 5A
Power Dissipation, P
Package Thermal Resistance (Note 2)
SOP-8 (Exposed Pad), θ
SOP-8 (Exposed Pad), θ
WDFN-8L 3x3, θ
WDFN-8L 3x3, θ
Junction Temperature --------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------- 260°C
Storage Temperature Range ------------------------------------------------------------------------------------ −65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Mode) -------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ---------------------------------------------------------------------------------------------- 200V
Supply Input Voltage, V
Junction Temperature Range ------------------------------------------------------------------------------------ −40°C to 125°C
Ambient Temperature Range ------------------------------------------------------------------------------------ −40°C to 85°C
IN
SOP-8 (Exposed Pad) ------------------------------------------------------------------------------------------ 1.333W
= 3.3V, T
Parameter
A
= 25°C, unless otherwise specified)
JA
JC
------------------------------------------------------------------------------------------------- 70°C/W
------------------------------------------------------------------------------------------------- 8.2°C/W
D
@ T
IN
IN
JA
JC
---------------------------------------------------------------------------------------- −0.3V to 6V
---------------------------------------------------------------------------------------- 2.7V to 5.5V
A
-------------------------------------------------------------------------------------- 75°C/W
------------------------------------------------------------------------------------- 15°C/W
= 25°C
V
gm
V
V
R
R
I
LIM
Symbol
REF
T
IH
IL
DS(ON)_P
DS(ON)_N
(Note 1)
Active , V
Shutdown
V
0A < I
R
Switching
EN Rising
EN Falling
I
I
V
V
LX
LX
IN
IN
IN
OSC
= 0.5A
= 0.5A
= 2.7V to 5.5V
Rising
Falling
LOAD
= 330kΩ
Test Conditions
FB
< 3A
= 0.78V, Not Switching
(Note 4)
0.784
Min
0.8
0.2
1.6
3.6
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DS8065-03 March 2011
0.25
Typ
460
400
120
0.8
0.1
0.3
4.5
2.4
2.2
80
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1
To be continued
0.816
Max
180
120
1.2
0.4
10
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2
IN
IN
+ 0.3V)
+ 0.3V)
μA/V
MHz
Unit
%/V
mΩ
mΩ
μA
%
Ω
V
V
A
V