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參數(shù)資料
| 型號： | LV5747NTT |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO12 |
| 封裝： | 0.150 INCH, MSOP-12 |
| 文件頁數(shù)： | 2/5頁 |
| 文件大小： | 167K |
| 代理商： | LV5747NTT |
LV5747NTT
No.A1759-2/5
Recommended Operating Range at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage range
VIN
8.0 to 42
V
Error amplifier input voltage
VFB
0 to 1.6
V
Electrical Characteristics at Ta
= 25°C, VIN = 24V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Reference voltage block
Internal reference voltage
Vref
Including offset of E/A
0.698
0.708
0.718
V
5V power supply
VDD
IOUT = 0 to 5mA
4.7
5.2
5.7
V
Triangular waveform oscillator block
Oscillation frequency
FOSC
260
300
340
kHz
Frequency variation
FOSC DV
VIN = 8 to 42V
1
%
Oscillation frequency fold back
detection voltage
VOSC FB
FB voltage detection after SS ends
0.5
V
Oscillation frequency after fold back
FOSC FB
VFB = 0V
25
45
60
kHz
ON/OFF circuit block
IC start-up EN voltage
VEN on
VIN = 8 to 42V
3.4
4.3
V
IC off EN voltage
VEN off
1.1
1.3
V
Soft start circuit block
Soft start source current
ISS SC
EN
> 4.3V
4
5
6
μA
Soft start sink current
ISS SK
EN
< 1V, VDD = 5V
2
mA
Soft start end voltage
VSS END
0.9
1.1
1.3
V
UVLO circuit block
UVLO lock release voltage
VUVLO
7.0
7.4
7.8
V
UVLO hysteresis
VUVLO H
0.6
V
Error amplifier
Input bias current
IEA IN
100
nA
Error amplifier gain
GEA
1000
1400
1800
μA/V
Common mode input range
VEA R
VIN = 8 to 42V
0.0
1.6
V
Sink output current
IEA OSK
FB = 1.0V
-100
μA
Source output current
IEA OSC
FB = 0V
100
μA
Current detection amplifier gain
GISNS
1.3
over current limiter circuit block
Reference current
ILIM
-10%
20
+10%
μA
Over current detection comparator
offset voltage
VLIM OFS
-5
+5
mV
Over current detection comparator
common mode input range
VIN-0.45
VIN
V
PWM comparator
Vt max
Duty cycle = DMAX, SW = VIN
1.0
1.1
1.2
V
Input threshold voltage
Vt0
Duty cycle = 0%, SW = VIN
0.4
0.5
0.6
V
Maximum ON duty
DMAX
92
%
Output block
Output stage ON resistance
(the upper side)
RONH
5
Ω
Output stage ON resistance
(the under side)
RONL
5
Ω
Output stage ON current
(the upper side)
IONH
240
mA
Output stage ON current
(the under side)
IONL
240
mA
The whole device
Standby current
ICCS
EN
< 1V
60
μA
Mean consumption current
ICCA
EN
> 4.3V
3.3
mA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LV5747NTT-TLM-E | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1-CH SWITCHING REGULATOR RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LV5747QA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1-channel Step-down Switching Regulator |
| LV5747QA-NH | 制造商:ON Semiconductor 功能描述:DC-DC CONVERTER (BUCK) - Tape and Reel |
| LV5747TT | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1-channel Step-down Switching Regulator |
| LV5749NV | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1-channel Step-down Switching Regulator |
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