參數(shù)資料
型號： LV5769V
廠商： SANYO SEMICONDUCTOR CO LTD
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 0.225 INCH, SSOP-16
文件頁數(shù)： 2/8頁
文件大小： 216K
代理商： LV5769V
LV5769V/VZ
No.A1920-2/8
Recommended Operating Range
at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage range
VIN
8.5 to 42
V
Error amplifier input voltage
VFB
0 to 1.6
V
Oscillatory frequency
FOSC
80 to 500
kHz
Electrical Characteristics
at Ta
= 25°C, VIN = 12V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Reference voltage block
Internal reference voltage
Vref
Including offset of E/A
0.654
0.67
0.686
V
5V power supply
VDD
IOUT = 0 to 5mA
4.7
5.2
5.7
V
Triangular waveform oscillator block
Oscillation frequency
FOSC
RT=220k
110
125
140
kHz
Frequency variation
FOSC DV
VIN = 8.5 to 32V
1
%
Oscillation frequency fold back
detection voltage
VOSC FB
FB voltage detection after SS ends
0.1
V
Oscillation frequency after fold back
FOSC FB
1/3FOSC
kHz
ON/OFF circuit block
IC start-up voltage
VEN on
2.5
3.0
3.5
V
IC off voltage
VEN off
1.1
1.3
1.5
V
Soft start circuit block
Soft start source current
ISS SC
EN
> 3.5V
4
5
6
μA
Soft start sink current
ISS SK
EN
< 1V, VDD = 5V
2
mA
UVLO circuit block
UVLO lock release voltage
VUVLO
8
V
UVLO hysteresis
VUVLO H
0.7
V
Error amplifier
Input bias current
IEA IN
100
nA
Error amplifier gain
GEA
1000
1400
1800
μA/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
1.5
over current limiter circuit block
Reference current
ILIM
-10%
18.5
+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
0.9
1.0
1.1
V
Input threshold voltage
(FOSC=125kHz)
Vt0
Duty cycle = 0%
0.4
0.5
0.6
V
Maximum ON duty
DMAX
86
90
95
%
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
10
μA
Mean consumption current
ICCA
EN
> 3.5V
3
mA
Continued on next page.
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