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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)： | 4/19頁 |
| 文件大?。?/td> | 268K |
| 代理商： | TPS2157IDGQ |
TPS2149
TPS2159
SLVS401
–
AUGUST 2001
4
www.ti.com
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)
timing parameters, power switches
PARAMETER
TEST CONDITIONS
MIN
0.5
TYP
MAX
UNIT
ton
Turnon time OUTx switch (see Note 1)
Turnon time, OUTx switch, (see Note 1)
CL = 100
μ
F
CL = 1
μ
F
CL = 100
μ
F
CL = 1
μ
F
CL = 100
μ
F
CL = 1
μ
F
CL = 100
μ
F
CL = 1
μ
F
RL= 33
RL = 33
6
0.1
3
tff
toff
Turnoff time OUTx switch (see Note 1)
Turnoff time, OUTx switch (see Note 1)
RL= 33
RL = 33
5.5
10
ms
0.05
2
tr
Rise time OUTx switch (see Note 1)
Rise time, OUTx switch (see Note 1)
RL= 33
RL = 33
0.5
5
0.1
2
tf
Fall time OUTx switch (see Note 1)
Fall time, OUTx switch (see Note 1)
RL= 33
RL = 33
5.5
0.05
9
1.2
NOTE 1. Specified by design, not tested in production.
undervoltage lockout at VIN
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
UVLO Threshold
2.2
2.85
V
Hysteresis (see Note 1)
260
mV
μ
s
Deglitch (see Note 1)
50
NOTE 1. Specified by design, not tested in production.
electrical characteristics over recommended operating junction-temperature range,
2.9 V
≤
V
I(VIN)
≤
5.5 V, V
I(ENx)
= 0 V, V
I(LDO_EN)
= 5 V, C
L(LDO_OUT)
= 10
μ
F, T
J
=
–
40
°
C to 100
°
C
(unless otherwise noted)
3.3 V LDO
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VO
Output voltage, dc
VI(VIN) = 4.25 V to 5.25 V,
IO(LDO_OUT) = 0.5 mA to 200 mA
VI(VIN) = 3.2 V, IO(OUT1) = 150 mA,
IO(LDO_OUT) = 200 mA
VI(VIN) = 4.25 V to 5.25 V, IO(LDO_OUT) = 5 mA
VI(VIN) = 4.25 V, IO(LDO_OUT) = 5 mA to 200 mA
VI(VIN) = 4.25 V, LDO_OUT connected to GND
VO(LDO_OUT) = 3.3 V, VI(IN) = 0 V
VO(LDO_OUT) = 5.5 V, VI(IN) = 0 V
f = 1 kHz, CL(LDO_OUT) = 4.7
μ
F, ESR = 0.25
,
IO = 5 mA, VINp
–
p = 100 mV
VIN ramping up from 10% to 90% in 0.1 ms,
RL = 16
, CL(LDO_OUT) = 10
μ
F
3.20
3.3
3.40
V
Dropout voltage
0.35
V
Line regulation voltage (see Note 1)
0.1
%/V
Load regulation voltage (see Note 1)
0.4
1%
IOS
Short-circuit current limit
0.275
0.33
10
0.55
A
μ
A
μ
A
Ilkg(R)
Reverse leakage current into
LDO_OUT
10
Power supply rejection
50
dB
Ramp-up time, LDO_OUT (0% to 90%)
0.1
1
ms
Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately.
NOTES:
1. Specified by design, not tested in production.
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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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