RT6259A/B
Absolute Maximum Ratings (Note 1)
Supply Voltage, VIN, VCC ---------------------------------------------------------------------------------------- −0.3V to 20V
Switch Voltage, SW ------------------------------------------------------------------------------------------------ −0.3V to (VIN + 0.3V)
< 10ns ----------------------------------------------------------------------------------------------------------------- −5V to 25V
BOOT to SW --------------------------------------------------------------------------------------------------------- −0.3V to 6V
VREG5 to VIN or VCC --------------------------------------------------------------------------------------------- −17V to 0.3V
EN, VS Pin ----------------------------------------------------------------------------------------------------------- −0.3V to 20V
Other Pins------------------------------------------------------------------------------------------------------------- −0.3V to 6V
Power Dissipation, PD @ TA = 25°C
WQFN-16L 3x3 ------------------------------------------------------------------------------------------------------ 2.1W
Package Thermal Resistance (Note 2)
WQFN-16L 3x3, θJA ------------------------------------------------------------------------------------------------- 47.4°C/W
WQFN-16L 3x3, θJC ------------------------------------------------------------------------------------------------ 7.5°C/W
Junction Temperature Range-------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------- 260°C
Storage Temperature Range -------------------------------------------------------------------------------------- −65°C to 150°C
Recommended Operating Conditions (Note 3)
Supply Voltage, VIN ------------------------------------------------------------------------------------------------ 4.5V to 18V
Junction Temperature Range-------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range-------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VIN = 12V, TA = 25°C, unless otherwise specified)
Parameter
Supply Current
Symbol
Test Conditions
Min
Typ
Max Unit
Shutdown Current
Quiescent Current
Logic Threshold
ISHDN
IQ
VEN = 0V
--
--
1
1
10
A
VEN = 5V, VFB = 0.8V
1.3
mA
Logic-High
Logic-Low
2
--
--
18
EN Input Voltage
V
--
0.4
VFB Voltage and Discharge Resistance
Feedback Threshold Voltage
Feedback Input Current
VOUT Discharge Resistance
VREG5 Output
VFB
IFB
0.757 0.765 0.773
V
A
VFB = 0.8V
--
--
0.01
50
0.1
RDIS
VEN = 0V, VS = 0.5V
100
VREG5 Output Voltage
Line Regulation
VREG5
6V VIN 18V, 0 < IVREG5 5mA
6V VIN 18V, IVREG5 = 5mA
0 IVREG5 5mA
4.8
--
5.1
--
5.4
20
V
mV
mV
mA
Load Regulation
--
--
100
--
Output Current
IVREG5
VIN = 6V, VREG5 = 4V
--
70
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8
DS6259A/B-01 September 2015
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
