RT5771A
Absolute Maximum Ratings
(Note 1)
Supply Input Voltage, VIN, VCC --------------------------------------------------------------------------------
−0.3V
to 6.5V
SW to GND
DC ----------------------------------------------------------------------------------------------------------------------
−0.3V
to (VIN + 0.3V)
< 100ns ---------------------------------------------------------------------------------------------------------------
−2.5V
to 9V
Other Pins ------------------------------------------------------------------------------------------------------------
−0.3V
to 6.5V
Power Dissipation, P
D
@ T
A
= 25°C
WDFN-10L 3x3 ------------------------------------------------------------------------------------------------------ 1.429W
Package Thermal Resistance (Note 2)
WDFN-10L 3x3,
θ
JA
------------------------------------------------------------------------------------------------ 70°C/W
WDFN-10L 3x3,
θ
JC
------------------------------------------------------------------------------------------------ 8.2°C/W
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------ 260°C
Junction Temperature ---------------------------------------------------------------------------------------------- 150°C
Storage Temperature Range -------------------------------------------------------------------------------------
−65°C
to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) --------------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions
(Note 4)
Supply Input Voltage, VIN, VCC -------------------------------------------------------------------------------- 2.7V to 5.5V
Junction Temperature Range -------------------------------------------------------------------------------------
−10°C
to 105°C
Electrical Characteristics
(V
IN
= 5.5V, T
A
= 25°C, unless otherwise specified)
Parameter
Feedback Reference Voltage
Feedback Leakage Current
DC Bias Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Switch Leakage Current
Switching Frequency
Switch On
Resistance
High-Side
Low-Side
Symbol
V
REF
I
FB
Test Conditions
Min
0.594
--
Typ
0.6
0.1
400
--
0.3
--
--
1
69
49
--
2.4
2.2
--
--
500
Max
0.606
0.4
--
1
--
1
1
1.2
--
--
--
2.6
2.4
--
0.4
--
Unit
V
A
A
%/V
%
A
MHz
m
A
V
V
k
Active , V
FB
= 0.7V, not switching
Shutdown
V
IN
= 2.7V to 5.5V, I
OUT
= 0A
(Note 5)
--
--
--
1
--
0.8
R
DS(ON)_P
R
DS(ON)_N
I
LIM
V
UVLO
V
IH
V
IL
V
CC
rising
V
CC
falling
--
--
4.8
2.2
2
1.6
--
--
P-MOSFET Current Limit
Under-Voltage Lockout
Threshold
EN Input Voltage
Logic-High
Logic-Low
EN Pull Low Resistance
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
4
DS5771A-02 June 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
