参数资料
型号: TPS54620RGYR
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 11 A SWITCHING REGULATOR, 1760 kHz SWITCHING FREQ-MAX, PQCC14
封装: 3.50 X 3.50 MM, GREEN, PLASTIC, MO-241BA, VQFN-14
文件页数: 34/44页
文件大小: 1827K
代理商: TPS54620RGYR
SLVS949C
– MAY 2009 – REVISED MAY 2011
ELECTRICAL CHARACTERISTICS (continued)
TJ = –40°C to 150°C, VIN = 4.5V to 17V, PVIN = 1.6V to 17V (unless otherwise noted)
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
THERMAL SHUTDOWN
Thermal shutdown
160
175
°C
Thermal shutdown hysteresis
10
°C
TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN)
Minimum switching frequency
Rrt = 240 k
(1%)
160
200
240
kHz
Switching frequency
Rrt = 100 k
(1%)
400
480
560
kHz
Maximum switching frequency
Rrt = 29 k
(1%)
1440
1600
1760
kHz
Minimum pulse width
20
ns
RT/CLK high threshold
2
V
RT/CLK low threshold
0.8
V
RT/CLK falling edge to PH rising edge delay
Measure at 500 kHz with RT resistor in series
66
ns
Switching frequency range (RT mode set point
200
1600
kHz
and PLL mode)
PH (PH PIN)
Minimum on time
Measured at 90% to 90% of VIN, 25
°C, IPH = 2A
94
135
ns
Minimum off time
BOOT-PH
≥ 3 V
0
ns
BOOT (BOOT PIN)
BOOT-PH UVLO
2.1
3
V
SLOW START AND TRACKING (SS/TR PIN)
SS charge current
2.3
μA
SS/TR to VSENSE matching
V(SS/TR) = 0.4 V
29
60
mV
POWER GOOD (PWRGD PIN)
VSENSE falling (Fault)
91
% Vref
VSENSE rising (Good)
94
% Vref
VSENSE threshold
VSENSE rising (Fault)
109
% Vref
VSENSE falling (Good)
106
% Vref
Output high leakage
VSENSE = Vref, V(PWRGD) = 5.5 V
30
100
nA
Output low
I(PWRGD) = 2 mA
0.3
V
Minimum VIN for valid output
V(PWRGD) < 0.5V at 100 μA
0.6
1
V
Minimum SS/TR voltage for PWRGD
1.4
V
4
Copyright
2009–2011, Texas Instruments Incorporated
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