參數(shù)資料
型號： PM6675ASTR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 3 A SWITCHING CONTROLLER, QCC24
封裝： 4 X 4 MM, LEAD FREE, VFQFPN-24
文件頁數(shù)： 27/48頁
文件大?。?/td> 2481K
代理商： PM6675ASTR
PM6675AS
Device description
33/48
Figure 36.
LDO current limit setting
7.2.2
LDO section soft-start
The LDO section soft-start is performed by clamping the current limit. During startup, the
LDO current limit voltage is set to 1 A and the output voltage increases linearly. When the
output voltage rises above 90 % of the nominal value, the current limit is released to 2 A
according to the LILIM pin setting.
7.2.3
LDO section power-good signal
The LPG pin is an open drain output used to monitor the LDO output voltage through LFB
pin. The LPG signal is held low if the output voltage drops 10 % below or rises 10 % above
the nominal regulated value. The LPG output can sink current up to 4 mA.
7.2.4
LDO section output discharge
Active soft-end of the LDO output occurs when the LEN (Linear ENable) is forced low. When
the LDO section is turned off, an internal 25
resistor, directly connected to the LOUT pin,
discharges the output.
Figure 37.
LDO section soft-end
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
VLIN [V]
IL
O
U
T
[
A
]
VOUT=1.05V
VOUT=1.2V
VOUT=1.5V
VOUT=1.8V
VOUT=2.0V
VOUT=2.2V
VOUT=2.5V
VOUT=3.3V
LEN
VLDO
Resistive Discharge
相關(guān)PDF資料
PDF描述
PM6675AS 3 A SWITCHING CONTROLLER, QCC24
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PM6675TR 功能描述:低壓差控制器 - LDO High eff SD CNRL RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負(fù)載調(diào)節(jié): 輸出類型:Adjustable, Fixed 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-6
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