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參數(shù)資料
| 型號： | LA5660M |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.05 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.225 INCH, MFP-8 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 90K |
| 代理商： | LA5660M |
LA5660M
No.7658-2/4
Electrical Characteristics at Ta =25
°C, VCC = 2V, fOSC =100kHz, RSTBY = 470 unless otherwise specified.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
(1) Oscillator Block
Oscillator frequency
fOSC
CT = 270pF, RT = 18k
80
100
120
kHz
Frequency fluctuations 1
fdV
VCC = 1.8V to 14V
2
10
%
Frequency fluctuations 2
fdT
Ta = -20 to 80
°C
5
%
(2) Error Amplifier Block
Input threshold voltage
VB
Short IN to EO and measure at the buffer.
0.492
0.50
0.508
V
Input bias current
IB
VIN = 0V
-1.0
-0.2
1.0
A
Open-loop gain
AVO
40
dB
Maximum output voltage (H)
VOH
0.78
0.87
V
Maximum output voltage (L)
VOL
200
mV
Output source current
IOH
VEO = 0.45V
-24
A
(3) PWM Circuit Block
Maximum duty cycle
TDUTY
75
85
95
%
(4) Short Circuit Protection Circuit
EO threshold voltage
VTHEO
0.7
0.8
0.9
V
SCP threshold voltage
VTHSCP
0.75
0.85
0.95
V
SCP charge current
ISCP
When the SCP pin is at 0V.
2.2
3.0
3.8
A
(5) Soft Start Circuit (Shared function with the SCP pin)
Soft mode to SCP mode
switching voltage
VSOFT
0.7
0.8
0.9
V
SOFT pin charge current
ISOFT
When the SCP pin is at 0V.
2.2
3.0
3.8
A
(6) STBY Pin
Pin voltage
VSTBY
0.22
0.32
0.42
V
Input off condition
IOFF
-10
0
A
Input on condition
ION
-40
A
STBY pin current range
ISTBY
-0.9
-0.1
mA
(7) Output Block
Output source current
IOUT1
VOUT = 0.9V RSTBY = 470
-40
-30
-20
mA
Output sink current
IOUT2
VOUT = 0.3V RSTBY = 470
30
60
mA
(8) Output Block
Quiescent current (standby
mode)
ICC1
When the STBY pin is open
1
A
Average supply current
ICC2
RSTBY = 470
Output open, duty = 50%
6
10
mA
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