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LM5166DRCT

更新时间: 2023-09-03 20:28:04
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德州仪器 - TI 转换器
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描述
具有超低 Iq 的 3V 至 65V 输入、500mA 同步降压转换器 | DRC | 10 | -40 to 150

LM5166DRCT 数据手册

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LM5166  
www.ti.com.cn  
ZHCSFV4B DECEMBER 2016REVISED JUNE 2017  
6.5 Electrical Characteristics  
Typical values correspond to TJ = 25°C. Minimum and maximum limits are based on TJ = –40°C to +125°C. VIN = 12 V  
(unless otherwise noted).(1)(2)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
VIN DC supply current,  
shutdown  
IQ-SD  
VEN = 0 V, TJ = 25°C  
4
6
µA  
IQ-SLEEP  
VIN DC supply current, no load VFB = 1.5 V, TJ = 25°C  
9.7  
10  
15  
µA  
IQ-SLEEP-  
VINMAX  
VIN DC supply current, no load VFB = 1.5 V, VVIN = 65 V, TJ = 25°C  
15  
µA  
IQ-ACTIVE-PFM  
VIN DC supply current, active  
VIN DC supply current, active  
PFM mode, RRT = 0 Ω, RSS = 100 kΩ  
COT mode, RRT = RSS = 100 kΩ  
205  
320  
µA  
µA  
IQ-ACTIVE-COT  
POWER SWITCHES  
RDSON1 High-side MOSFET RDS(on)  
RDSON2 Low-side MOSFET RDS(on)  
ISW = –100 mA  
ISW = 100 mA  
0.93  
0.48  
Ω
Ω
CURRENT LIMITING  
IHS_LIM1  
1125  
675  
1250  
750  
500  
415  
315  
1375  
825  
High-side peak current limit  
threshold  
IHS_LIM2  
IHS_LIM3  
ILS_LIM1  
ILS_LIM2  
See 3  
See 3  
mA  
mA  
440  
560  
Low-side valley current limit  
threshold  
REGULATION COMPARATOR  
VVOUT5  
VOUT 5-V DC setpoint  
LM5166X  
4.9  
5.0  
3.3  
7
5.1  
V
V
VVOUT3.3  
VOUT 3.3-V DC setpoint  
LM5166Y  
3.23  
3.37  
VVOUT = 5 V, LM5166X  
VVOUT = 3.3 V, LM5166Y  
IVOUT  
VOUT pin input current  
µA  
3.8  
Lower FB regulation threshold  
(PFM and COT)  
VFB1  
VFB2  
1.208  
1.218  
1.223  
1.233  
1.238  
V
V
Adjustable VOUT version  
VFB = 1 V  
Upper FB regulation threshold  
(PFM)  
1.248  
25  
IFB  
FB pin input bias current  
nA  
FBHYS-PFM  
FB comparator PFM hysteresis PFM mode  
10  
4
mV  
FB comparator dropout  
COT mode  
FBHYS-COT  
mV  
%/V  
%/V  
hysteresis  
FBLINE-REG  
VOUTLINE-REG  
FB threshold variation over line VVIN = 3 V to 65 V  
0.005  
0.005  
VOUT threshold variation over  
line  
LM5166X, VVIN = 6 V to 65 V  
LM5166Y, VVIN = 4.5 V to 65 V  
POWER GOOD  
UVTRISING  
VFB rising relative to VFB1 threshold  
VFB falling relative to VFB1 threshold  
VFB = 1 V  
94%  
87%  
80  
PGOOD comparator  
UVTFALLING  
RPGOOD  
PGOOD on-resistance  
200  
1.65  
100  
Ω
V
VVIN falling  
IPGOOD = 0.1 mA, VPGOOD < 0.5 V  
Minimum required VIN for valid  
PGOOD  
VINMIN-PGOOD  
1.2  
10  
IPGOOD  
PGOOD off-state leakage  
VFB = 1.2 V, VPGOOD = 5.5 V  
nA  
ENABLE / UVLO  
VIN-ON  
Turnon threshold  
Turnoff threshold  
EN turnon threshold  
EN turnoff threshold  
VVIN rising  
VVIN falling  
VEN rising  
VEN falling  
2.60  
2.35  
2.75  
2.45  
2.95  
2.60  
V
V
V
V
VIN-OFF  
VEN-ON  
1.163  
1.109  
1.22  
1.276  
1.178  
VEN-OFF  
1.144  
(1) All hot and cold limits are specified by correlating the electrical characteristics to process and temperature variations and applying  
statistical process control.  
(2) The junction temperature (TJ in °C) is calculated from the ambient temperature (TA in °C) and power dissipation (PD in Watts) as follows:  
TJ = TA + (PD θJA) where θJA (in °C/W) is the package thermal impedance provided in Thermal Information.  
Copyright © 2016–2017, Texas Instruments Incorporated  
5

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