Preliminary
Absolute Maximum Ratings
(Note 1)
RT9701B
Supply Voltage ------------------------------------------------------------------------------------------------------------- 7V
Chip Enable -----------------------------------------------------------------------------------------------------------------
−
0.3V to 7V
Power Dissipation, P
D
@ T
A
= 25°C
SOT-23-5 --------------------------------------------------------------------------------------------------------------------
0.4W
Package Thermal Resistance (Note 3)
SOT-23-5,
θ
JA
--------------------------------------------------------------------------------------------------------------- 250°C /W
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
Operating Junction Temperature Range ------------------------------------------------------------------------------
−
20°C to 100°C
Storage Temperature Range --------------------------------------------------------------------------------------------
−
65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 8kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 700V
Electrical Characteristics
(V
IN
= 5V, C
IN
= C
OUT
= 1μF, T
A
= 25°C, unless otherwise specified)
Parameter
Input Voltage Range
Output NMOSFET R
DS(ON)
Quiescent Current
Output Turn-On Rising Time
Current Limit Threshold
Short-circuit Fold Back Current
EN Input High Threshold
EN Input Low Threshold
Shutdown Supply Current
Output Leakage Current
V
IN
Under Voltage Lockout
V
IN
Under Voltage Hysteresis
Thermal Limit
Thermal Limit Hysteresis
RT9701BCB
RT9701BCB
RT9701BCB
RT9701BCB
RT9701BCBL
RT9701BCB
Symbol
V
IN
R
DS(ON)
Test Conditions
Min
3.5
Typ
--
85
87
23
400
1.5
1.0
--
--
0.1
0.5
3
100
130
20
Max
6
100
100
45
--
2
--
--
0.8
1
10
--
--
--
--
Units
V
mΩ
μA
μs
A
A
V
V
μA
μA
V
mV
°C
°C
I
L
= 1A
I
L
= 1A
V
IN
= 5V
R
L
= 10Ω, 90% Settling
R
L
= 2Ω
V
OUT
= 0V, measured
prior to thermal shutdown
--
--
--
--
1.1
--
2.0
--
T
R
I
LIM
I
OS
I
OFF
UVLO
EN = “0”
--
--
2.8
--
--
--
I
LEAKAGE
EN = “0”, V
OUT
= 0V
T
SD
ΔT
SD
Note 1.
Stresses listed as the above
“Absolute
Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2.
Devices are ESD sensitive. Handling precaution recommended.
Note 3.
θ
JA
is measured in the natural convection at T
A
= 25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
DS9701B-04 March 2007
www.richtek.com
3
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
