參數(shù)資料
型號: ST763ABDTR
廠商: 意法半導(dǎo)體
英文描述: MOSFET, P SO-8MOSFET, P SO-8; Transistor type:MOSFET; Transistor polarity:P; Voltage, Vds max:20V; Case style:SO-8; Current, Id cont:7.3A; Current, Idm pulse:-30A; Power, Pd:1.35W; Resistance, Rds on:0.017R; SMD:1; Charge, gate p
中文描述: 3.3V的降壓電流模式PWM DC - DC變換器
文件頁數(shù): 4/10頁
文件大?。?/td> 252K
代理商: ST763ABDTR
ST763A SERIES
4/10
ELECTRICAL CHARACTERISTICS
(V
CC
=5V, I
O
= 0mA, T
A
= T
MIN
to T
MAX
, unless otherwise specified.)
TYPICAL APPLICATION CIRCUIT
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
CC
V
O
Input Voltage
Output Voltage
3.3
3.135
3.135
11
V
V
V
V
CC
= 4 to 11V
V
CC
= 4.75 to 11V
I
O
=0 to 300mA
I
O
=0 to 500mA
3.3
3.3
3.465
3.465
V
O
V
O
η
Line Regulation
Load Regulatio
Power Efficency
0.13
0.005
88
90
%/V
%/mA
%
%
I
O
= 1 to 500mA
I
O
=300mA
I
O
=100mA
ON Mode (Including Switch Current)
OFF Mode
I
SUPPLY
Supply Current
0.6
0.2
2.5
100
mA
μ
A
V
IH
V
IL
I
SHDN
SHDN Input High Threshold
SHDN Input Low Threshold
Shutdown Input Leakage
Current
Under Voltage Lockout
LX On Resistance
LX Leakage Current
Reference Voltage
Temeperature Reference
Drift
Switching Frequency
Compensation Pin
Impedance
2
V
V
μ
A
0.25
1
V
LOCK
R
DS(on)
I
LEAK
V
REF
V
REF
V
CC
Falling
I
LX
=500mA
V
CC
= 12V
T
A
= 25°C
T
A
= T
MIN
to T
MAX
2.7
1
10
1.25
50
3
V
nA
V
V
LX
= 0V
1.18
1.32
ppm/°C
f
OSC
R
C
159
200
7500
212.5
KHz
CC
SS
REF
SHDN
Vcc
Lx
OUT
GND
+
470 pF
220 μF
1 μF
1500 pF
100 μF
22 μH
Vout
Vin
0.047 μF
STPS330U
+
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