RT8025
Absolute Maximum Ratings
(Note 1)
Supply
Input Voltage ------------------------------------------------------------------------------------------------------ 6.5V
Enable, FB Voltage ------------------------------------------------------------------------------------------------------- V
IN
+ 0.6V
Power Dissipation, P
D
@ T
A
= 25°C
SOT-23-5, TSOT-23-5 ----------------------------------------------------------------------------------------------------- 0.4W
Package Thermal Resistance (Note 2)
SOT-23-5, TSOT-23-5,
θ
JA
----------------------------------------------------------------------------------------------- 250°C/W
SOT-23-5, TSOT-23-5,
θ
JC
----------------------------------------------------------------------------------------------- 130°C/W
Junction Temperature Range -------------------------------------------------------------------------------------------- 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
Recommended Operating Conditions
(Note 4)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.5V to 5.5V
Junction Temperature Range --------------------------------------------------------------------------------------------
−40°C
to 125°C
Ambient Temperature Range --------------------------------------------------------------------------------------------
−40°C
to 85°C
Electrical Characteristics
(V
IN
= 3.6V, V
OUT
= 2.5V, V
REF
= 0.5V, L = 4.7μH, C
IN
= 4.7μF, C
OUT
= 10μF, T
A
= 25°C, I
MAX
= 400mA, unless otherwise specified)
Parameter
Input Voltage Range
Quiescent Current
Shutdown Current
Reference Voltage
Adjustable Output Range
Symbol
V
IN
I
Q
I
SHDN
V
REF
V
OUT
ΔV
OUT
ΔV
OUT
ΔV
OUT
Test Conditions
Min
2.5
--
--
0.49
V
REF
Typ
--
50
0.1
0.5
--
--
--
--
--
--
--
--
--
Max
5.5
100
1
0.51
V
IN
−
0.2
3
3
3
3
3
3
3
3
Unit
V
μA
μA
V
V
%
%
%
%
%
%
%
%
I
OUT
= 0mA, V
FB
= V
REF
+ 5%
EN = GND
For adjustable output voltage
V
IN
= 2.5 to 5.5V, V
OUT
= 1.0V
0A < I
OUT
< 400mA
V
IN
= 2.5 to 5.5V, V
OUT
= 1.2V
0A < I
OUT
< 400mA
V
IN
= 2.5 to 5.5V, V
OUT
= 1.3V
0A < I
OUT
< 400mA
V
IN
= 2.5 to 5.5V, V
OUT
= 1.5V
0A < I
OUT
< 400mA
V
IN
= 2.5 to 5.5V, V
OUT
= 1.8V
0A < I
OUT
< 400mA
V
IN
= V
OUT
+
ΔV
to 5.5V (Note 5)
V
OUT
= 2.5V, 0A < I
OUT
< 400mA
V
IN
= V
OUT
+
ΔV
to 5.5V (Note 5)
V
OUT
= 3.3V, 0A < I
OUT
< 400mA
V
IN
= V
OUT
+ 0.2V to 5.5V
0A < I
OUT
< 400mA
−3
−3
−3
−3
−3
−3
−3
Output Voltage
Accuracy
ΔV
OUT
Fix
ΔV
OUT
ΔV
OUT
ΔV
OUT
ΔV
OUT
−
3
To be continued
www.richtek.com
4
DS8025-02 March 2011
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
