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參數(shù)資料
| 型號(hào)： | TPS79428DGNR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | ULTRALOW-NOISE, HIGH PSRR, FAST RF 250-mA LOW-DROPOUT LINEAR REGULATORS |
| 中文描述： | 超低噪聲，高PSRR，快速射頻250毫安低壓降線性穩(wěn)壓器 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 487K |
| 代理商： | TPS79428DGNR |
www.ti.com
_
+
Thermal
Shutdown
Bandgap
Reference
1.225 V
V
IN
Current
Sense
R2
IN
GND
EN
OUT
SHUTDOWN
V
ref
UVLO
ILIM
External to
the Device
FB
R1
UVLO
250 k
NR
(1)
(1) Not Available on DCQ (SOT223) options.
Quickstart
_
+
Thermal
Shutdown
V
IN
Current
Sense
R1
R2
IN
GND
EN
OUT
SHUTDOWN
V
ref
UVLO
ILIM
Bandgap
Reference
1.225 V
UVLO
250 k
NR
Quickstart
R
2
= 40k
TPS79401, TPS79418
TPS79425, TPS79428
TPS79430, TPS79433
SLVS349D–NOVEMBER 2001–REVISED OCTOBER 2004
FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION
FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION
Terminal Functions
TERMINAL
DGN
(MSOP)
4
DESCRIPTION
DCQ
(SOT223)
5
NAME
NR
Connecting an external capacitor to this pin bypasses noise generated by the internal bandgap. This
improves power-supply rejection and reduces output noise.
The EN terminal is an input which enables or shuts down the device. When EN goes to a logic high, the
device will be enabled. When the device goes to a logic low, the device is in shutdown mode.
This terminal is the feedback input voltage for the adjustable device.
Regulator ground.
Unregulated input to the device.
No internal connection.
Output of the regulator.
EN
6
1
FB
GND
IN
NC
OUT
3
5
3
2
5, PAD
8
2, 7
1
4
5
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| TPS79428DGNRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS79428DGNT | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS79428DGNTG4 | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS79430DCQ | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS79430DCQG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Sgl Output 250mA Fixed 3.0V Hi PSRR RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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