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參數(shù)資料
| 型號： | TPS2157IDGQ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 3.3-V LDO AND DUAL SWITCH FOR USB BUS-POWERED HUB POWER MANAGEMENT |
| 中文描述： | 3.3V的穩(wěn)壓器和雙USB總線開關(guān)電源的集線器，電源管理 |
| 文件頁數(shù)： | 3/19頁 |
| 文件大?。?/td> | 268K |
| 代理商： | TPS2157IDGQ |
TPS2149
TPS2159
SLVS401
–
AUGUST 2001
3
www.ti.com
recommended operating conditions
MIN
2.9
MAX
5.5
UNIT
Input voltage
VI(VIN)
VI(ENx)
LDO_OUT
V
0
5.5
Continuous output current IO
Continuous output current, IO
200
mA
OUT1, OUT2
150
Output current limit IO(LMT)
Output current limit, IO(LMT)
LDO_OUT
250
450
mA
OUT1, OUT2
200
400
Operating virtual-junction temperature range, TJ
–
40
100
°
C
electrical characteristics over recommended operating junction-temperature range,
2.9 V
≤
V
I(VIN)
≤
5.5 V, T
J
=
–
40
°
C to 100
°
C (unless otherwise noted)
general
PARAMETER
TEST CONDITIONS
VI(ENx) = 5 V (inactive),
VO(LDO_OUT) = no load,
VO(OUTx) = no load
VI(ENx) = 5 V (inactive),
VO(LDO_OUT) = no load,
VO(OUTx) = 0 V
(measured from outputs to
ground)
MIN
TYP
MAX
UNIT
Off-state supply current
100
μ
A
Forward leakage current (power
switches only)
VI(VIN) = 5 V
1
μ
A
II
Total input current at VIN
VI(VIN) = 5 V,
No load on OUTx,
No load on LDO_OUT
ENx = on (active)
150
μ
A
ENx = off (inactive)
100
μ
A
power switches
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
rDS(on)
Static drain-source
on state resistance
on-state resistance,
VIN to OUTx
IO(LDO_OUT) = 200 mA,
IOUT1 and IOUT2 = 150 mA, TJ =
–
40
°
C to 100
°
C
IO(LDO_OUT) = 200 mA,
IOUT1 and IOUT2 = 150 mA, TJ = 25
°
C
VI(ENx) = 5 V, VI(ENx) = 0 V,
VI(VIN) = 5 V
VI(ENx) = 5 V, VI(ENx) = 0 V,
VI(VIN) = 2.9 V
VI(ENx) = 5 V, VI(ENx) = 0 V,
VI(VIN) = 0 V
OUTx connected to GND, device enabled into short
circuit
680
m
340
10
Ilkg(R)
Reverse leakage current at OUTx
VO(OUTx) = 5 V
10
μ
A
10
IOS
Short circuit output current
0.2
0.4
A
Delay time for asserting OC flag
From IOUTx at 95% of current limit level to 50% OC.
5.5
ms
Delay time for deasserting OC flag
NOTE 1: Specified by design, not tested in production.
From IOUTx at 95% of current limit level to 50% OC.
10.5
ms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2158IDGN | 功能描述:電源開關(guān) IC - USB 3.3V LDO + Dual Switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2158IDGN | 制造商:Texas Instruments 功能描述:Power Distribution Load Switch IC |
| TPS2158IDGNG4 | 功能描述:電源開關(guān) IC - USB 3.3V LDO + Dual Switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2158IDGNR | 功能描述:電源開關(guān) IC - USB 3.3V LDO + Dual Switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2158IDGNRG4 | 功能描述:電源開關(guān) IC - USB 3.3V LDO + Dual Switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
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