z Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------------- 260°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V
@ TA = 25°C
D
Recommended Operating Conditions (Note 4)
z Supply Voltage, V
z Control Voltage, VDD
z Control Voltage with PGOOD, VDD
z Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C
------------------------------------------------------------------------------------------------------- 1.4V to 5.5V
IN
(VDD
> V
+ 1.5V) -------------------------------------------------------------------------- 3V to 5.5V
OUT
(Note 8) ----------------------------------------------------------------------- 4.5V to 5.5V
Electrical Characteristics
(V
= V
IN
+ 500mV, V
OUT
Parameter Symbol Test Conditions Min Typ Max Unit
POR Threshold 2.4 2.7 3 V
POR Hysteresis 0.15 0.2 -- V
Adjustable Pin Threshold V
Reference Voltage (ADJ Pin Voltage) V
Fixed Output Voltage Range ΔV
Line Regulation (VIN) ΔV
Load Regulation (Note 5) ΔV
Dropout Voltage (Note 6) V
Quiescent Current (Note 7) IQ V
Current Limit I
EN
= V
DD
= 5V, C
= C
IN
= 10μF, T
OUT
TH_ADJ
I
ADJ
−1.5 0 1.5 %
OUT
LINE_IN
LOAD
DROP
3.2 4.5 -- A
LIM
= T
A
I
OUT
OUT
V
IN
I
OUT
V
IN
I
OUT
I
OUT
I
OUT
DD
= 25°C, unless otherwise specified)
J
= 1mA -- 0.2 0.4 V
= 1mA 0.788 0.8 0.812 V
= V
= V
+ 0.5V to 5V,
OUT
= 1mA
+ 1V,
OUT
= 1mA to 3A
-- 0.2 0.6 %
-- 0.2 1 %
= 2A -- 150 250
= 3A -- 210 350
mV
= 5.5V -- 0.6 1.2 mA
Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and 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 may
affect device reliability.
Note 2. θ
Note 3. Devices are ESD sensitive. Handling precaution recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Note 5. Regulation is measured at constant junction temperature by using a 2ms current pulse. Devices are tested for load
Note 6. The dropout voltage is defined as V
Note 7. Quiescent, or ground current, is the difference between input and output currents. It is defined by I
Note 8. The control voltage must within 4.5V to 5.5V when using PGOOD function.
is measured at T
JA
measured at the exposed pad of the package.
regulation in the load range from 1mA to 3A.
load condition (I
current.
= 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is
A
-V
IN
= 0mA). The total current drawn from the supply is the sum of the load current plus the ground pin
OUT
, which is measured when V
OUT
OUT
is V
OUT(NORMAL)
- 100mV.
= IIN - I
Q
under no
OUT
Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.