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REG113 데이터시트 PDF




Burr-Brown Corporation에서 제조한 전자 부품 REG113은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 REG113 자료 제공

부품번호 REG113 기능
기능 DMOS 400mA Low-Dropout Regulator
제조업체 Burr-Brown Corporation
로고 Burr-Brown Corporation 로고


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REG113 데이터시트, 핀배열, 회로
REG113
SBVS031C – MARCH 2001 – REVISED MARCH 2003
DMOS
400mA Low-Dropout Regulator
FEATURES
q CAP-FREE DMOS TOPOLOGY:
Ultra Low Dropout Voltage:
250mV typ at 400mA
Output Capacitor not Required for Stability
q UP TO 500mA PEAK, TYPICAL
q FAST TRANSIENT RESPONSE
q VERY LOW NOISE: 28µVrms
q HIGH ACCURACY: ±1.5% max
q HIGH EFFICIENCY:
IGND = 850µA at IOUT = 400mA
Not Enabled: IGND = 0.01µA
q 2.5V, 2.85V, 3.0V, 3.3V, AND 5.0V OUTPUT VERSIONS
q OTHER OUTPUT VOLTAGES AVAILABLE UPON
REQUEST
q FOLDBACK CURRENT LIMIT
q THERMAL PROTECTION
q SMALL SURFACE-MOUNT PACKAGES:
SOT23-5 and MSOP-8
APPLICATIONS
q PORTABLE COMMUNICATION DEVICES
q BATTERY-POWERED EQUIPMENT
q PERSONAL DIGITAL ASSISTANTS
q MODEMS
q BAR-CODE SCANNERS
q BACKUP POWER SUPPLIES
DESCRIPTION
The REG113 is a family of low-noise, low-dropout linear
regulators with low ground pin current. Its new DMOS topol-
ogy provides significant improvement over previous designs,
including low-dropout voltage (only 250mV typ at full load),
and better transient performance. In addition, no output
capacitor is required for stability, unlike conventional low-
dropout regulators that are difficult to compensate and re-
quire expensive low ESR capacitors greater than 1µF.
Typical ground pin current is only 850µA (at IOUT = 400mA)
and drops to 10nA when not enabled. Unlike regulators with
PNP pass devices, quiescent current remains relatively con-
stant over load variations and under dropout conditions.
The REG113 has very low output noise (typically 28µVrms
for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use
in portable communications equipment. Accuracy is main-
tained over temperature, line, and load variations. Key
parameters are tested over the specified temperature range
(–40°C to +85°C).
The REG113 is well protected—internal circuitry provides a
current limit which protects the load from damage, further-
more, thermal protection circuitry keeps the chip from being
damaged by excessive temperature. The REG113 is avail-
able in SOT23-5 and MSOP-8 packages.
Enable
VIN
+
0.1µF
REG113
VOUT
+ COUT(1)
NR(2)
GND
NOTES: (1) Optional. (2) NR = Noise Reduction.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2001-2003, Texas Instruments Incorporated




REG113 pdf, 반도체, 판매, 대치품
TYPICAL CHARACTERISTICS
For all models, at TJ = +25°C and VENABLE = 1.8V, unless otherwise noted.
1.0
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1.0
0
OUTPUT VOLTAGE CHANGE vs IOUT
(Referred to IOUT = 200mA at +25°C)
55°C
+25°C
+125°C
50 100 150 200 250 300 350 400
Output Current (mA)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
50
LOAD REGULATION vs TEMPERATURE
(VIN = VOUT + 1V)
IOUT = 40mA to 400mA
IOUT = 5mA to 400mA
25 0
25 50 75 100 125
Temperature (°C)
40
30
20
10
0
10
20
30
40
0
LINE REGULATION
(Referred to VIN = VOUT + 1V at IO = 200mA)
5mA
200mA
400mA
1234567
VIN VOUT (V)
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
50
LINE REGULATION vs TEMPERATURE
IOUT = 200mA, (VOUT + 1V) < VIN < 10
IOUT = 200mA, (VOUT + 0.4V) < VIN < 10
IOUT = 400mA, (VOUT + 1V) < VIN < 10
IOUT = 400mA, (VOUT + 0.4V) < VIN < 10
25 0
25 50 75 100 125
Temperature (°C)
400
350
300
250
200
150
100
50
0
0
DC DROPOUT VOLTAGE vs OUTPUT CURRENT
55°C
+25°C
+125°C
50 100 150 200 250 300 350 400
Output Current (mA)
DC DROPOUT VOLTAGE vs TEMPERATURE
400
350
IOUT = 400mA
300
250
200
150
100
50
0
50
25
0 25 50 75
Junction Temperature (°C)
100
125
4 REG113
www.ti.com
SBVS031C

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REG113 전자부품, 판매, 대치품
TYPICAL CHARACTERISTICS (Cont.)
For all models, at TJ = +25°C and VENABLE = 1.8V, unless otherwise noted.
CURRENT LIMIT FOLDBACK
3.5
3.0
VOUT = 3.3V
2.5
2.0
ICL
1.5
1.0
ISC
0.5
0
0 50 100 150 200 250 300 350 400 450 500 550
Output Current Limit (mA)
600
550
500
450
400
350
300
250
200
150
100
50
CURRENT LIMIT vs TEMPERATURE
ICL (Current Limit)
ISC (Short-Circuit Current)
25 0
25 50 75 100 125
Temperature (°C)
400mA
40mA
LOAD TRANSIENT RESPONSE
COUT = 0
REG113-3.3
VIN = 4.3V
COUT = 10µF
VOUT
VOUT
10µs/div
5.3V
IOUT
4.3V
LINE TRANSIENT RESPONSE
COUT = 0
REG113-3.3
IOUT = 400mA
VOUT
COUT = 10µF
VOUT
50µs/div
VIN
TURN-ON
COUT = 0µF
RLOAD = 660
COUT = 10µF
RLOAD = 13
COUT = 0µF
RLOAD = 13
VOUT
250µs/div
REG113-3.3
VIN = VOUT + 1V
CNR = 0.01µF
VENABLE
TURN-OFF
COUT = 0µF
RLOAD = 660
COUT = 10µF
RLOAD = 13
COUT = 1.0µF
RLOAD = 13
VOUT
200µs/div
REG113-3.3
VENABLE
REG113
SBVS031C
www.ti.com
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