參數(shù)資料
型號： ADP5024ACPZ-1-R7
廠商： ANALOG DEVICES INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, PQCC24
封裝： 4 X 4 MM, ROHS COMPLIANT, MO-220, LCC-24
文件頁數(shù)： 13/27頁
文件大?。?/td> 926K
代理商： ADP5024ACPZ-1-R7
ADP5024
Preliminary Technical Data
Rev. PrA | Page 20 of 27
pFET switch on 100% of the time, the output voltage drops
below the desired output voltage. At this limit, the buck
transitions to a mode where the pFET switch stays on 100%
of the time. When the input conditions change again and the
required duty cycle
falls, the buck immediately restarts PWM regulation without
allowing overshoot on the output voltage.
Active Pull-Downs
All regulators have optional, factory programmable, active
pull-down resistors discharging the respective output
capacitors when the regulators are disabled. The pull-down
resistors are connected between VOUTx and AGND. Active
pull-downs are disabled when the regulators are turned on.
The typical value of the pull-down resistor is 600 Ω for the
LDO and 75 Ω for the bucks. Figure 46 shows the activation
timings for the active pull-downs during regulator activation
and deactivation.
LDO
The ADP5024 contains one LDO with low quiescent current
and low dropout linear regulator, and provides up to 300 mA
of output current. Drawing a low 10 μA quiescent current
(typical) at no load makes the LDO ideal for battery-operated
portable equipment.
The LDO operates with an input voltage of 1.7 V to 5.5 V. The
wide operating range makes these LDO suitable for cascading
configurations where the LDO supply voltage is provided
from one of the buck regulators.
TheLDO output voltage is set through external resistor
dividers as shown in Figure 48 for LDO. The output voltage
can optionally be factory programmed to default values as
indicated in the Ordering Guide section. In this event, Ra and
Rb are not needed, and FB3 can be left unconnected. FB3 is
0.5 V.
LDO1
FB3
Ra
Rb
VOUT3
VIN3
C7
1 F
VOUT3 = VFB3
+ 1
Ra
Rb
0
9
7
0
3
-0
0
9
Figure 48. LDO1 External Output Voltage Setting
The LDO also provide high power supply rejection ratio
(PSRR), low output noise, and excellent line and load
transient response with only a small 1 F ceramic input and
output capacitor.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADP5024ACPZ-2-R7 功能描述:直流/直流開關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
ADP5024ACPZ-R2 功能描述:直流/直流開關(guān)調(diào)節(jié)器 ADJ Outputs UVLO Low RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
ADP5024ACPZ-R7 功能描述:直流/直流開關(guān)調(diào)節(jié)器 ADJ Outputs UVLO Low RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
ADP5024CP-EVALZ 功能描述:BOARD EVAL FOR ADP5024 LFCSP RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:* 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓撲結(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
ADP50250001CBZR 功能描述:IC RF REGULATOR LDO 制造商:analog devices inc. 系列:* 零件狀態(tài):上次購買時間 標(biāo)準(zhǔn)包裝:1
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