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LM7705 データシート(PDF) 3 Page - Texas Instruments

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部品番号 LM7705
部品情報  LM7705 Low Noise Negative Bias Generator
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
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LM7705 データシート(HTML) 3 Page - Texas Instruments

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LM7705
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SNVS420B – NOVEMBER 2008 – REVISED MARCH 2013
3.3V Electrical Characteristics (continued)
Unless otherwise specified, all limits are ensured for TA = 25°C, VDD = 3.3V, VSS = 0V, SD = 0V, CFLY= 5 µF, CRES = 22 µF,
COUT = 22 µF. Boldface limits apply at temperature extremes
(1).
Symbol
Parameter
Conditions
Min(2)
Typical(3)
Max(2)
Units
VIL
Shutdown Input Low
1.6
V
1.25
VIH
Shutdown Input High
1.85
V
2.15
IC
Shutdown Pin Input Current
SD = VDD
50
pA
Load Regulation
0 mA
≤ IOUT ≤ −20 mA
0.12
0.6
%/mA
0.85
Line Regulation
3V
≤ VDD ≤ 5.25V (No Load)
-0.2
0.29
0.7
%/V
1.1
5.0V Electrical Characteristics
Unless otherwise specified, all limits are ensured for TA = 25°C, VDD = 5.0V, VSS = 0V, SD = 0V, CFLY = 5 µF, CRES = 22 µF,
COUT = 22 µF. Boldface limits apply at temperature extremes
(1).
Symbol
Parameter
Conditions
Min(2)
Typical(3)
Max(2)
Units
VOUT
Output Voltage
IOUT = 0 mA
−0.242
−0.233
−0.219
−0.251
−0.209
V
IOUT = −20 mA
−0.242
−0.226
−0.219
−0.251
−0.209
VR
Output Voltage Ripple
IOUT = −20 mA
4
mVPP
IS
Supply Current
No Load
60
103
135
μA
240
ISD
Shutdown Supply Current
SD = VDD
20
nA
ηPOWER
Current Conversion Efficiency
−5 mA ≤ IOUT ≤ −20 mA
98
%
ηPOWER
Current Conversion Efficiency
IOUT = −5 mA
98
%
tON
Turn On Time
IOUT = −5 mA
200
μs
t OFF
Turn Off Time
IOUT = −5 mA
700
μs
tOFF CP
Turn Off Time Charge Pump
IOUT = −5 mA
11
μs
ZOUT
Output Impedance
−1 mA ≤ IOUT ≤ −20 mA
0.26
0.8
Ω
1.3
IO_MAX
Maximum Output Current
VOUT < − 200 mV
−35
mA
fOSC
Oscillator Frequency
91
kHz
VIL
Shutdown Input Low
2.55
V
1.95
VIH
Shutdown Input High
2.8
V
3.25
IC
Shutdown Pin Input Current
SD = VDD
50
pA
Load Regulation
0 mA
≤ IOUT ≤ −20 mA
0.14
0.6
%/mA
0.85
Line Regulation
3V
≤ VDD ≤ 5.25V (No Load)
−0.2
0.29
0.7
%/V
1.1
(1)
Boldface limits apply to temperature range of
−40°C to 125°C
(2)
All limits are specified by testing or statistical analysis.
(3)
Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary
over time and will also depend on the application and configuration. The typical values are not tested and are not specified on shipped
production material.
Copyright © 2008–2013, Texas Instruments Incorporated
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