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參數(shù)資料
| 型號： | NCV4949PDG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 100 mA, 5.0V, LDO w/ Reset, Delay, and Early Warning |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 182K |
| 代理商： | NCV4949PDG |
L4949, NCV4949
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (continued) (VCC = 14 V, 40°C < TA < 125°C, unless otherwise specified.)
Characteristic
Unit
Max
Typ
Min
Symbol
RESET
Reset Threshold Voltage
VResth
Vout 0.5
V
Reset Threshold Hysteresis
VResth,hys
mV
@ TA = 25°C
50
100
200
@ TA = 40 to +125°C
50
300
Reset Pulse Delay (CT = 100 nF, tR ≥ 100 ms)
tResD
55
100
180
ms
Reset Reaction Time (CT = 100 nF)
tResR
5.0
30
ms
Reset Output Low Voltage (RReset = 10 kW to Vout, VCC ≥ 3.0 V)
VResL
0.4
V
Reset Output High Leakage Current (VReset = 5.0 V)
IResH
1.0
mA
Delay Comparator Threshold
VCTth
2.0
V
Delay Comparator Threshold Hysteresis
VCTth, hys
100
mV
SENSE
Sense Low Threshold (VSI Decreasing = 1.5 V to 1.0 V)
VSOth
1.16
1.23
1.35
V
Sense Threshold Hysteresis
VSOth,hys
20
100
200
mV
Sense Output Low Voltage (VSI ≤ 1.16 V, VCC ≥ 3.0 V, RSO = 10 kW to Vout)
VSOL
0.4
V
Sense Output Leakage (VSO = 5.0 V, VSI ≥ 1.5 V)
ISOH
1.0
mA
Sense Input Current
ISI
1.0
0.1
1.0
mA
PREREGULATOR
Preregulator Output Voltage (IZ = 10 mA)
VZ
6.3
V
PIN FUNCTION DESCRIPTION
Pin
SOIC8, PDIP8
Pin
SOIC8 EP
Pin
SOIC20W
Symbol
Description
1
19
VCC
Supply Voltage
2
20
Si
Input of Sense Comparator
3
1
VZ
Output of Preregulator
4
2
CT
Reset Delay Capacitor
5
4 7, 14 17
GND
Ground
6
10
Reset
Output of Reset Comparator
7
11
SO
Output of Sense Comparator
8
12
Vout
Main Regulator Output
3, 8, 9, 13, 18
NC
No Connect
EPAD
EPAD
Connect to Ground potential or leave unconnected
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| NCV4949PDR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 100mA 5V LDO VO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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