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DS8099/A-01 February 2015www.richtek.com
RT8099/A
©
Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
Absolute Maximum Ratings
(Note 1)
Supply Input Voltage, VIN ------------------------------------------------------------------------------------------------ 6V
EN, FB Pin Voltage -------------------------------------------------------------------------------------------------------- −0.3V to V
IN
Power Dissipation, P
D
@ T
A
= 25°C
UDFN-6L 1.6x1.6 ----------------------------------------------------------------------------------------------------------- 2.15W
Package Thermal Resistance (Note 2)
UDFN-6L 1.6x1.6, θ
JA
----------------------------------------------------------------------------------------------------- 46.5°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
MM (Machine Model) ------------------------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions (Note 4)
Supply Input Voltage, VIN ----------------------------------------------------------------------------------------------- 2.3V to 5.5V
Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range-------------------------------------------------------------------------------------------- −40°C to 85°C
(V
IN
= 3.6V, V
OUT
= 1.8V, V
REF
= 0.6V, L = 2.2μH, C
IN
= 4.7μF, C
OUT
= 10μF, I
MAX
= 0.6A, T
A
= 25°C, unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Input Voltage Start-Up V
IN
2.3 -- 5.5 V
Input Voltage Range V
IN
I
OUT
= 600mA 2.7 -- 5.5 V
Quiescent Current for
Adjustable Output Voltage
I
Q_adj
I
OUT
= 0mA, V
FB
= V
REF
+ 10%, without
include EN pin current (Note 5)
-- 20 35 A
Shutdown Current I
SHDN
EN = GND -- 0.1 1 A
Reference Voltage V
REF
For Adjustable Output Voltage 0.591 0.6 0.609 V
Adjustable Output Range V
OUT
0.7 -- V
IN
V
Output Voltage Accuracy V
OUT
V
IN
= 2.7V to 5.5V, 0A < I
OUT
< 0.6A 3 -- 3 %
FB Input Current I
FB
V
FB
= V
IN
50 -- 50 nA
V
IN
= 3.6V -- 0.28 --
High-Side MOSFET
On-Resistance
R
DS(ON)_P
I
OUT
= 200mA
V
IN
= 2.5V -- 0.38 --
V
IN
= 3.6V -- 0.25 --
Low-Side MOSFET
On-Resistance
R
DS(ON)_N
I
OUT
= 200mA
V
IN
= 2.5V -- 0.35 --
High-Side MOSFET
Current Limit
I
LIM_P
1 1.5 2 A
Logic-High V
EN_H
1.5 -- --
EN Input
Voltage
Logic-Low V
EN_L
-- -- 0.4
V
Under Voltage Lock Out
Threshold (Rising)
UVLO_R V
IN
Rising 2.1 2.2 2.3 V
UVLO Hysteresis UVLO_Hys V
IN
Falling -- 0.1 -- V
