參數(shù)資料
型號(hào): TLE7469GV52
廠商: INFINEON TECHNOLOGIES AG
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: Dual Low Drop Voltage Regulator
中文描述: 雙低壓降穩(wěn)壓器
文件頁(yè)數(shù): 13/21頁(yè)
文件大小: 240K
代理商: TLE7469GV52
TLE 7469
Final Data Sheet
13
Rev. 1.3, 2004-10-28
The drop across the ESR calculates as:
DVESR = DI*ESR (5.2)
To prevent a reset the following relationship must be fullfilled:
DVC + DVESR < 300mV (5.3)
Example: let us assume we have a load current change of 100mA and a blocking
capacitor of 22μF.
DVC = 0.1A * 25μs/22μF = 114mV
So for the ESR we can allow
DVESR = 300mV - 114mV = 186mV
The permissible ESR becomes:
ESR = 186mV/100mA = 1.86Ohm
As a dual regulator the TLE 7469 for correct operation should be always supplied at both
input pins I1 and I2 out of one voltage supply. The dual voltage regulator with both inputs
accessible, offers the possibility to reduce the power dissipation in the package. This can
be achived by two different input voltages or a Drop Resistor* R
Vi
(see
Figure 3
) at the
input pin I2 for the 2.6V output. If one of this options is chosen,care should be taken, to
apply the device as descibet under “Table 3: Operating Range”.
The reset output RO features an integrated pull-up resistor. Thus it can be directly
coupled to the microcontroller reset input.
The sense comparator output SO is an open collector. An appropriate external pull-up
resistor is typ. 5.6 k
… 47 k
, the minimum value of 5.6 k
being defined by the max.
sink current capability of the SO output transistor. If the sense comparator is not used of
course the pull-up resistor can be spared. In this case the SI pin should be directly
connected to Q1 in order to keep the comparator inactive.
相關(guān)PDF資料
PDF描述
TLE7719 Airbag Satellite Receive IC (SatRIC)
TLMA0110G 10 Gbits/s Limiting Amplifier(10 G位/秒限幅放大器)
TLV2211CDBV Advanced LinCMOSE RAIL-TO-RAIL MICROPOWER SINGLE OPERATIONAL AMPLIFIERS
TLV2211IDBV Paired Cable; Number of Conductors:2; Conductor Size AWG:14; No. Strands x Strand Size:42 x 30; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:1; Features:Unshielded; Leaded Process Compatible:Yes; Temperature Max:90 C RoHS Compliant: Yes
TLV2211Y Advanced LinCMOSE RAIL-TO-RAIL MICROPOWER SINGLE OPERATIONAL AMPLIFIERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLE7469GV52AUMA1 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V2.6V 0.215A/0.2A 12-Pin DSO 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC REG LDO 5V/2.6V 12DSO
TLE7469GV52NT 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V2.6V 0.215A/0.2A 12-Pin DSO T/R
TLE7469GV52T 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V2.6V 0.215A/0.2A 12-Pin DSO T/R
TLE7469GV53 功能描述:低壓差穩(wěn)壓器 - 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(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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TLE7469GV53AUMA1 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V3.3V 0.215A/0.2A 12-Pin DSO 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC REG LDO 5V/3.3V 12DSO