RT7249
Absolute Maximum Ratings (Note 1)
Supply Voltage, VIN ----------------------------------------------------------------------------------------------- −0.3V to 20V
Switch Voltage, LX ------------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V)
< 10ns----------------------------------------------------------------------------------------------------------------- −5V to 20V
Supply Input Voltage, SW_IN ----------------------------------------------------------------------------------- −0.3V to 6V
RLIM, EN_SW, FAULT, SW_OUT Pin Voltages ------------------------------------------------------------- −0.3V to 5.5V
VBOOT − VLX ---------------------------------------------------------------------------------------------------------- −0.3V to 6.3V
Other Pins------------------------------------------------------------------------------------------------------------ −0.3V to 6V
PowerDissipation, PD @ TA = 25°C
WQFN-16L 4x4 ----------------------------------------------------------------------------------------------------- 2.74W
Package Thermal Resistance (Note 2)
WQFN-16L 4x4, θJA ------------------------------------------------------------------------------------------------ 36.5°C/W
WQFN-16L 4x4, θJC ----------------------------------------------------------------------------------------------- 3.3°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 3)
Supply Voltage, VIN ----------------------------------------------------------------------------------------------- 4.5V to 18V
Supply Voltage, SW_IN ------------------------------------------------------------------------------------------- 2.5V to 5.5V
Junction Temperature Range------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
Switching Buck Regulator SPEC
(VIN = 12V, TA = 25°C, unless otherwise specified)
Parameter
Shutdown Current
Symbol
Test Conditions
VEN = 0V
Min
Typ
Max
Unit
--
0.5
3
A
VEN = 3V, VFB = 0.9V, No load not
switching
--
0.8
1.2
Quiescent Current
Feedback Voltage
mA
VEN = 3V, No load switching
--
7
--
VFB
GEA
4.5V VIN 18V
0.792
0.8
0.808
V
Error Amplifier
Transconductance
IC = ±10A
--
700
--
A/V
High-Side
Low-Side
RDS(ON)1
RDS(ON)2
--
--
85
72
--
--
Switch
On-Resistance
m
A
A
High-Side Switch Leakage
Current
VEN = 0V, VSW = 0V
--
0
10
High-Side
Low-Side
Min. duty cycle
--
--
5
--
--
Switch Current
Limit
From drain to source
1.5
Copyright 2017 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS7249-02 March 2017
www.richtek.com
5
5秒后页面跳转
深入解析CS8416引脚说明、参数、技术特点
TPA3116D2功放芯片参数详解、引脚说明
移位寄存器74HC165引脚说明、驱动程序示例解读
深入解析AD9833：DDS频率合成器的卓越性能与广泛应用
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
