參數(shù)資料
型號： UA7905C
廠商： Texas Instruments, Inc.
英文描述： NEGATIVE-VOLTAGE REGULATORS
中文描述： 負(fù)電壓調(diào)節(jié)器
文件頁數(shù)： 4/10頁
文件大?。?/td> 317K
代理商： UA7905C
μ
SLVS058D JUNE 1976 REVISED APRIL 2004
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 14 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7908C
TYP
UNITS
TJ
MIN
7.7
MAX
8.3
25
°
C
8
Output voltage
IO = 5 mA to 1 A,
P
≤
15 W
VI = 10.5 V to 25 V
VI = 11 V to 17 V
VI = 11.5 V to 21.5 V, f = 120 Hz
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = 10.5 V to 23 V,
0
°
C to 125
°
C
7.6
8.4
V
Input regulation
12.5
160
80
mV
4
Ripple rejection
0
°
C to 125
°
C
54
60
15
5
dB
Output regulation
160
80
mV
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.6
200
1.1
1.5
0.15
0.08
2.1
mV/
°
C
μ
V
V
mA
2
1
Bias current change
VI = 10.5 V to 25 V
IO = 5 mA to 1 A
mA
0.5
Peak output current
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a 2-
μ
F capacitor across the input and a 1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
A
electrical characteristics at specified virtual junction temperature, V
I
= 19 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7912C
TYP
12
UNITS
TJ
MIN
11.5
MAX
12.5
25
°
C
Output voltage
IO = 5 mA to 1 A,
P
≤
15 W
VI = 14.5 V to 30 V
VI = 16 V to 22 V
VI = 15 V to 25 V, f = 120 Hz
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = 14.5 V to 27 V,
0
°
C to 125
°
C
11.4
12.6
V
Input regulation
5
3
80
30
mV
Ripple rejection
0
°
C to 125
°
C
54
60
15
5
dB
Output regulation
200
75
mV
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.8
300
1.1
mV/
°
C
μ
V
V
mA
2
3
Bias current change
VI = 14.5 V to 30 V
IO = 5 mA to 1 A
0.04
0.06
2.1
0.5
0.5
mA
Peak output current
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a 2-
μ
F capacitor across the input and a 1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
A
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UA7905CKCS 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 5V1.5A Fixed Neg Vltg Regulator RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L
UA7905CKCSE3 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 3P 1.5A Fixed (-5V) Neg Vltg Reg RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L
UA7905CKTE 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Negative Fixed Voltage Regulator
UA7905CKTER 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 5V 1.5-A Fixed Neg RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L
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