參數(shù)資料
型號: TPS70802PWP
廠商: Texas Instruments, Inc.
元件分類: 線性穩(wěn)壓
英文描述: DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
中文描述: 兩用低壓差電壓帶的劈開SVS的系統(tǒng)集成穩(wěn)壓器的輸出電壓
文件頁數(shù): 12/29頁
文件大?。?/td> 449K
代理商: TPS70802PWP
TPS70845, TPS70848, TPS70851, TPS70858, TPS70802
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
SLVS301B – JUNE 2000 – REVISED OCTOBER 2002
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The TPS708xx family of voltage regulators offers very low dropout voltage and dual outputs. These devices
have extremely low noise output performance without using any added filter bypass capacitors and are
designed to have a fast transient response and be stable with 10
F low ESR capacitors.
These devices have fixed 3.3-V/2.5-V, 3.3-V/1.8-V, 3.3-V/1.5-V, 3.3-V/1.2-V, and adjustable voltage options.
Regulator 1 can support up to 250 mA, and regulator 2 can support up to 125 mA. Separate voltage inputs allow
the designer to configure the source power.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 170 mV
on regulator 1) 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 (maximum of
230
A over the full range of output current and full range of temperature). This LDO family also features a sleep
mode; applying a high signal to EN1 or EN2 (enable) shuts down regulator 1 or regulator 2, respectively. When
a high signal is applied to both EN1 and EN2, both regulators are in sleep mode, thereby reducing the input
current to 2
A at TJ = 25°C.
For each regulator, there is an internal discharge transistor to discharge the output capacitor when the regulator
is turned off (disabled).
The PG1 pin reports the voltage condition at VOUT1. The PG1 pin can be used to implement a SVS (RESET,
POR, or power on reset) for the circuitry supplied by regulator 1. The PG2 pin reports the voltage conditions
at VOUT2. The PG2 pin can be used to implement a SVS (power on reset) for the circuitry supplied by
regulator 2.
The TPS708xx features a RESET (SVS, POR, or power on reset). RESET output initiates a reset in the event
of an undervoltage condition. RESET also indicates the status of the manual reset pin (MR). When MR is in the
logic high state, RESET goes to a high-impedance state after 120 ms delay. To monitor VOUT1, the PG1 output
pin can be connected to MR. To monitor VOUT2, the PG2 output pin can be connected to MR.
The device has an undervoltage lockout UVLO circuit which prevents the internal regulators from turning on until
VIN1 reaches 2.5V.
AVAILABLE OPTIONS
TJ
REGULATOR 1
VO (V)
REGULATOR 2
VO (V)
TSSOP
(PWP)
3.3 V
1.2 V
TPS70845PWP
3.3 V
1.5 V
TPS70848PWP
– 40
°Cto125°C
3.3 V
1.8 V
TPS70851PWP
– 40
°C to 125°C
3.3 V
2.5 V
TPS70858PWP
Adjustable
(1.22 V to 5.5 V)
Adjustable
(1.22 V to 5.5 V)
TPS70802PWP
NOTE: The TPS70802 is programmable using external resistor dividers (see
application information) The PWP package is available taped and reeled. Add
an R suffix to the device type (e.g., TPS70802PWPR).
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS70802PWP 制造商:Texas Instruments 功能描述:IC DUAL ADJ LDO 20-HTSSOP 制造商:Texas Instruments 功能描述:IC, DUAL ADJ LDO 20-HTSSOP
TPS70802PWPG4 功能描述:低壓差穩(wěn)壓器 - LDO Dual-Output LDO 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(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
TPS70802PWPR 功能描述:低壓差穩(wěn)壓器 - LDO Dual-Output LDO 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(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
TPS70802PWPRG4 功能描述:低壓差穩(wěn)壓器 - LDO Dual-Output LDO 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(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
TPS70845 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS