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参数资料
| 型号： | TK61220AQ4 |
| 厂商： | TOKO INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, QCC24 |
| 封装： | 4 X 4 MM, HQFN-24 |
| 文件页数： | 18/23页 |
| 文件大小： | 342K |
| 代理商： | TK61220AQ4 |
TK61220AQ4
GC3-N008B
Page 4
7. ELECTRICAL CHARACTERISTICS
VDD=5V, Ta=25°C, RT=16k, CT=22pF, CL=1000pF
Value
Parameter
Symbol
MIN
TYP
MAX
Units
Conditions
Quiescent Supply Current
IQ
-
1.0
1.5
mA
*4
Standby Supply Current
ISTB
-
0.01
1.0
A
VEN 1=VEN 2=0.3V
REF Voltage
VREF
2.45
2.50
2.55
V
IL=0mA
VREF Load Regulation
LoaReg
-
10
30
mV
IL=0~1mA
EN Voltage High Voltage
VEN_H
1.2
-
14.5
V
EN Voltage Low Voltage
VEN_L
0
-
0.3
V
Undervoltage Lockout Section
Threshold Voltage
VUVLO
2.6
2.7
2.8
V
VDD falling
Hysteresis
VUVLO_HYS
-
0.18
-
V
Oscillator Section
Oscillator Frequency
fOSC
0.91
1.0
1.09
MHz
VDTC=1V
RT Voltage
VRT
0.45
0.5
0.55
V
Over Voltage Protection Section
Threshold Voltage
VOVP
1.35
1.5
1.65
V
VOVP rising
LED Over Current Protection Section
Threshold Voltage
VLED
0.63
0.7
0.77
V
VLED rising, *5
FET Over Current Protection Section
Threshold Voltage
VIS
0.08
0.1
0.12
V
VIS rising
PGOOD Section
Output Low Voltage
VOL
-
0.2
0.4
V
IPGOOD=1mA, VLED=0.77V
*1, *5
Error Amplifier Section
VFB 1
0.481
0.5
0.519
V
VDIM=2.0V, *2
VFB 2
0.481
0.5
0.519
V
VDIM=14.5V, *2
VFB 3
-
0.01
0.1
V
VDIM=0.2V, *2
Feedback Voltage
VFB 4
0.481
0.5
0.519
V
*2, *3
Voltage Gain
AV
-
60
-
dB
Band Width
BW
-
1.5
-
MHz
AV=0dB
EAOUT Output Voltage High Level
VEAOUT H
2.35
2.49
-
V
VFB=0V, *3
EAOUT Output Voltage Low Level
VEAOUT L
-
0.01
0.1
V
*3, *4
Driver Section
Driver Rise Time
tr
-
40
-
nS
Driver Fall Time
tf
-
25
-
nS
Pull Down Resistance
ROut
-
20
-
k
*1 Timer latch turns on, and measures.
*2 FB pin connects to EAOUT pin, and measures.
*3 DIM pin connects to REF pin, and measures.
*4 FB pin connects to REF pin, and measures.
*5 EAOUT pin connects to REF pin, and measures.
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