- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384030 > TPS77427DGK (Texas Instruments, Inc.) 250-mA LDO REGULATORS WITH INTEGRATED RESET OR PG PDF資料下載
參數(shù)資料
| 型號： | TPS77427DGK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 250-mA LDO REGULATORS WITH INTEGRATED RESET OR PG |
| 中文描述： | 250毫安LDO穩(wěn)壓器與集成復(fù)位或PG |
| 文件頁數(shù)： | 2/23頁 |
| 文件大?。?/td> | 355K |
| 代理商： | TPS77427DGK |
TPS77301, TPS77318, TPS77327, TPS77328, TPS77333 WITH RESET OUTPUT
TPS77401, TPS77418, TPS77427, TPS77428, TPS77433 WITH POWER GOOD OUTPUT
250-mA LDO REGULATORS WITH INTEGRATED RESET OR PG
SLVS281A – FEBRUARY 2000 – REVISED MARCH 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 200 mV
at an output current of 250 mA for 3.3 volt option) and is directly proportional to the output current. Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent
of output loading (typically 92
μ
A over the full range of output current, 0 mA to 250 mA). These two key
specifications yield a significant improvement in operating life for battery-powered systems.
The device is enabled when the EN pin is connected to a low-level input voltage. This LDO family also features
a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent
current to less than 1
μ
A at T
J
= 25
°
C.
The TPS773xx features an integrated power-on reset, commonly used as an supply voltage supervisor (SVS),
or reset output voltage. The RESET output of the TPS773xx initiates a reset in DSP, microcomputer or
microprocessor systems at power-up and in the event of an undervoltage condition. An internal comparator in
the TPS773xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated
output voltage. When OUT
reaches 95% of its regulated voltage, RESET will go to a high-impedance state after
a 220 ms delay. RESET will go to low-impedance state when OUT
is pulled below 95% (i.e. over load condition)
of its regulated voltage.
For the TPS774xx, the power good terminal (PG) is an active high output, which can be used to implement a
power-on reset or a low-battery indicator. An internal comparator in the TPS774xx monitors the output voltage
of the regulator to detect an undervoltage condition on the regulated output voltage. When OUT
falls below 82%
of its regulated voltage, PG will go to a low-impedance state. PG will go to a high-impedance state when OUT
is above 82% of its regulated voltage.
AVAILABLE OPTIONS
TJ
OUTPUT
VOLTAGE
(V)
PACKAGED DEVICES
TYP
MSOP
(DGK)
3.3
TPS77333DGK
TPS77433DGK
2.8
TPS77328DGK
TPS77428DGK
–40 C to 125 C
2.7
TPS77327DGK
TPS77427DGK
1.8
TPS77318DGK
TPS77418DGK
Adjustable
1.5 V to 5.5 V
TPS77301DGK
TPS77401DGK
The TPS77301 and TPS77401 are programmable using an external resistor divider
(see application information). The DGK package is available taped and reeled. Add
an R suffix to the device type (e.g., TPS77301DGKR).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS77427DGKR | 250-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING |
| TPS79628KTTRG3 | ULTRALOW-NOISE, HIGH PSRR, FAST, RF, 1A LOW-DROPOUT LINEAR REGULATORS |
| TPS796XX | ULTRALOW-NOISE, HIGH PSRR, FAST, RF, 1A LOW-DROPOUT LINEAR REGULATORS |
| TPS796xxyyyz | ULTRALOW-NOISE, HIGH PSRR, FAST, RF, 1A LOW-DROPOUT LINEAR REGULATORS |
| TPS799XX_08 | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS77427DGKG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Fast Transient Response 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS77427DGKR | 功能描述:低壓差穩(wěn)壓器 - LDO Fast Transient Response 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS77427DGKRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Fast Transient Response 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS77428DGK | 功能描述:低壓差穩(wěn)壓器 - LDO Fast Transient Response 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS77428DGKG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Fast Transient Response 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。