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RT8525D Datasheet(PDF) 4 Page - Richtek Technology Corporation

Part # RT8525D
Description  Current Mode Boost Controller
Download  12 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8525D Datasheet(HTML) 4 Page - Richtek Technology Corporation

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RT8525D
www.richtek.com
DS8525D-00 June 2012
©
Copyright 2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
(VIN = 21V, CIN = 10
μF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input Power Supply
Quiescent Current
IQ
No Switching, RSW = 56kΩ
--
1.3
2
mA
Shutdown Current
ISHDN
VEN = 0V
--
10
--
μA
Under Voltage Lockout
Threshold
VUVLO
VIN Rising
--
3.8
--
V
Under Voltage Lockout
Hysteresis
ΔVUVLO
--
500
--
mV
12V Regulator
13.5V < VIN < 16V, 1mA < ILOAD < 100mA
16V < VIN < 20V, 1mA < ILOAD < 50mA
Regulator Output Voltage
VDC
20V < VIN < 25V, 1mA < ILOAD < 20mA
11.4
12
12.6
V
Dropout Voltage
VDROP
VIN − VDC, VIN = 12V, ILOAD = 100mA
--
500
--
mV
Short-Circuit Current Limit
ISC
VDC Short to GND
--
270
--
mA
Control Input
Logic-High
VIH
2
--
--
EN Threshold
Voltage
Logic-Low
VIL
--
--
0.8
V
EN Sink Current
IIH
VEN = 5V
--
5
--
μA
Absolute Maximum Ratings
(Note 1)
VIN to GND -------------------------------------------------------------------------------------------------------------------
−0.3V to 26.4V
VDC, DRV, FAULT to GND------------------------------------------------------------------------------------------------
−0.3V to 13.2V
EN, COMP, SS, FSW, FB, OVP, ISW to GND ----------------------------------------------------------------------
−0.3V to 6V
Power Dissipation, PD @ TA = 25
°C
WDFN-12L 3x3 -------------------------------------------------------------------------------------------------------------- 1.667W
Package Thermal Resistance (Note 2)
WDFN-12L 3x3,
θJA -------------------------------------------------------------------------------------------------------- 60°C/W
WDFN-12L 3x3,
θJC -------------------------------------------------------------------------------------------------------- 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
MM (Machine Model) ------------------------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions
(Note 4)
Supply Input Voltage, VIN ------------------------------------------------------------------------------------------------ 4.5V to 25V
Junction Temperature Range ---------------------------------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range ---------------------------------------------------------------------------------------------
−40°C to 85°C


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