參數(shù)資料
型號(hào): TPS54227DDA
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 4.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8
封裝: PLASTIC, MS-012BA, SOP-8
文件頁(yè)數(shù): 14/19頁(yè)
文件大小: 323K
代理商: TPS54227DDA
SLVSAU2
– MAY 2011
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range, VIN = 12 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
THERMAL SHUTDOWN
Shutdown temperature (2)
165
TSDN
Thermal shutdown threshold
°C
Hysteresis (2)
35
ON-TIME TIMER CONTROL
tON
On time
VIN = 12 V, VO = 1.05 V
150
ns
tOFF(MIN)
Minimum off time
TA = 25°C, VFB = 0.7 V
260
310
ns
SOFT START
ISSC
SS charge current
VSS = 1V
1.4
2.0
2.6
μA
ISSD
SS discharge current
VSS = 0.5 V
0.1
0.2
mA
UVLO
Wake up VREG5 voltage
3.45
3.75
4.05
UVLO
UVLO threshold
V
Hysteresis VREG5 voltage
0.13
0.32
0.48
(2)
Not production tested.
4
Copyright
2011, Texas Instruments Incorporated
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