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參數(shù)資料
| 型號(hào)： | TPS22942DCKRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | GREEN, PLASTIC, SC-70, 5 PIN |
| 文件頁數(shù)： | 14/19頁 |
| 文件大?。?/td> | 537K |
| 代理商： | TPS22942DCKRG4 |
SLVS832C – NOVEMBER 2008 – REVISED NOVEMBER 2009
www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)
MIN
MAX
UNIT
VI
Input voltage range
VIN, VOUT, ON
–0.3
6
V
TJ
Operating junction temperature range
–40
125
°C
Tstg
Storage temperature range
–65
150
°C
Human-Body Model (HBM)
4
ESD
Electrostatic discharge protection
kV
Charged-Device Model (CDM)
1
(1)
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
THERMAL IMPEDANCE RATINGS
UNIT
θJA
Package thermal impedance(1)
DCK package
259
°C/W
(1)
The package thermal impedance is calculated in accordance with JESD 51-7.
RECOMMENDED OPERATING CONDITIONS
MIN
MAX
UNIT
VIN
Input voltage
1.62
5.5
V
VOUT
Output voltage
VIN
TA
Ambient free-air temperature
–40
85
°C
ELECTRICAL CHARACTERISTICS
VIN = 1.62 V to 5.5 V, TA = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
MIN TYP(1) MAX
UNIT
IIN
Quiescent current
IOUT = 0 mA,
VIN = 1.62 V to 5.5 V
Full
40
80
μA
VON = 0 V (TPS22943/4/5)
VIN = 3.6 V,
IIN(OFF)
OFF-State supply current
or
Full
1
μA
VOUT open
VON = VIN (TPS22941/2)
VON = 0 V (TPS22943/4/5)
VIN = 3.6 V,
IOUT(LEAKAGE) OFF-State switch current
or
Full
1
μA
VOUT short to GND
VON = VIN (TPS22941/2)
25°C
0.4
0.5
VIN = 5.5 V
Full
0.6
25°C
0.5
0.6
VIN = 3.3 V
Full
0.7
25°C
0.6
0.7
rON
ON-state resistance
IOUT = 20 mA
VIN = 2.5 V
Full
0.8
25°C
0.8
0.9
VIN = 1.8 V
Full
1.1
25°C
0.9
1.1
VIN = 1.62 V
Full
1.2
ION
ON input leakage current
VON = VIN or GND
Full
1
μA
TPS22941/3
40
65
80
ILIM
Current limit
VIN = 3.3 V, VOUT = 3 V
Full
mA
TPS22942/4/5
100
150
200
Shutdown threshold
140
Thermal shutdown
Return from shutdown
Full
130
°C
Hysteresis
10
(1)
Typical values are at VIN = 3.3 V and TA = 25°C.
4
Copyright 2008–2009, Texas Instruments Incorporated
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