MAX8842ELT+T
Analog Devices Inc./Maxim Integrated
IC REG LIN POS ADJ 150MA 6UDFN
Raktáron51180 pcs
90 µA
Positive
Enable
1.225V
4.5V
1
150mA
-
72dB ~ 46dB (1kHz ~ 100kHz)
Over Current, Over Temperature
MAX8842
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
6V
Adjustable
6-WFDFN
6-uDFN (1.5x1)
-
RFQ
ADP3334ARZ
Analog Devices Inc.
IC REG LIN POS ADJ 500MA 8SOIC
Raktáron16091 pcs
130 µA
Positive
Feedback, Shutdown
1.5V
10V
1
500mA
0.4V @ 500mA
-
Over Current, Over Temperature
ADP3334
Tube
anyCAP®
-40°C ~ 85°C (TA)
Surface Mount
11V
Adjustable
8-SOIC (0.154', 3.90mm Width)
8-SOIC
10 mA
RFQ
MAX8869EUE50+
Analog Devices Inc./Maxim Integrated
IC REG LIN POS ADJ 1A 16TSSOP
Raktáron7280 pcs
2 mA
Positive
Enable, Reset, Soft Start
0.8V (5V)
5V
1
1A
0.35V @ 1A
54dB (100kHz)
Over Current, Over Temperature, Short Circuit
MAX8869
Tube
-
-40°C ~ 85°C (TA)
Surface Mount
5.5V
Adjustable (Fixed)
16-TSSOP (0.173', 4.40mm Width) Exposed Pad
16-TSSOP-EP
2.5 mA
RFQ
BD433M2EFJ-CE2
Rohm Semiconductor
IC REG LINEAR 3.3V 200MA 8HTSOP
Raktáron38240 pcs
90 µA
Positive
-
3.3V
-
1
200mA
0.45V @ 100mA
65dB (120Hz)
Over Current, Over Temperature
BD433
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 150°C
Surface Mount
42V
Fixed
8-SOIC (0.154', 3.90mm Width) Exposed Pad
8-HTSOP-J
150 µA
RFQ
LP3966ESX-ADJ
Texas Instruments
IC REG LIN POS ADJ 3A DDPAK
Raktáron12591 pcs
9 mA
Positive
Enable
1.216V
5.1V
1
3A
1.2V @ 3A
-
Over Current, Over Temperature, Short Circuit
LP3966
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
7V
Adjustable
TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
DDPAK/TO-263-5
15 mA
RFQ
AP7340-28FS4-7
Diodes Incorporated
IC REG LINEAR 2.8V 150MA 4DFN
Raktáron315240 pcs
50 µA
Positive
Enable
2.8V
-
1
150mA
0.27V @ 150mA
75dB (1kHz)
Over Current
AP7340
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.25V
Fixed
4-XDFN Exposed Pad
X2-DFN1010-4
100 µA
RFQ
AN79L15
Panasonic Electronic Components
IC REG LINEAR -15V 100MA 3SSIP
Raktáron16410 pcs
5 mA
Negative
-
-15V
-
1
100mA
-
51dB (120Hz)
Over Current, Over Temperature
AN79L15
Bulk
-
0°C ~ 125°C
Through Hole
-35V
Fixed
TO-226-3, TO-92-3 (TO-226AA)
3-SSIP
-
RFQ
LP3855EMP-2.5
Texas Instruments
IC REG LINEAR 2.5V 1.5A SOT223-5
Raktáron5950 pcs
3 mA
Positive
Enable
2.5V
-
1
1.5A
0.44V @ 1.5A
73dB ~ 57dB (120Hz)
Over Current, Over Temperature, Short Circuit
LP3855
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
7V
Fixed
TO-261-5, TO-261AB
SOT-223-5
10 mA
RFQ
AS13986-2828-T
ams OSRAM
IC REG LINEAR 2.8V/2.8V 8WLP
Raktáron6060 pcs
200 µA
Positive
Enable
2.8V, 2.8V
-
2
150mA, 150mA
0.1V @ 150mA, 0.1V @ 150mA
55dB ~ 50dB (1kHz ~ 10kHz)
Over Current, Over Temperature
-
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
8-UFBGA, WLCSP
8-WLP (1.55x1.55)
370 µA
RFQ
MIC39100-1.8WS
Microchip Technology
IC REG LINEAR 1.8V 1A SOT223-3
Raktáron34107 pcs
-
Positive
-
1.8V
-
1
1A
0.63V @ 1A
-
Over Current, Over Temperature, Reverse Polarity
MIC39100
Tube
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
TO-261-4, TO-261AA
SOT-223-3
-
RFQ
TPS74611PQWDRBRQ1
Texas Instruments
AUTOMOTIVE 1-A, LOW-IQ, HIGH-PSR
Raktáron48260 pcs
36 µA
Positive
Enable
1.1V
-
1
1A
0.79V @ 1A
53dB ~ 30dB (1kHz ~ 1MHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
-
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 125°C (TA)
Surface Mount, Wettable Flank
6V
Fixed
8-VDFN Exposed Pad
8-SON (3x3)
-
RFQ
TPS79718DCKRG4
Texas Instruments
IC REG LINEAR 1.8V 50MA SC70-5
Raktáron12390 pcs
2 µA
Positive
Power Good
1.8V
-
1
50mA
-
50dB (100Hz)
Over Current, Reverse Polarity
TPS79718
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.5V
Fixed
5-TSSOP, SC-70-5, SOT-353
SC-70-5
-
RFQ
LP2989AILDX-3.0
Texas Instruments
IC REG LINEAR 3V 500MA 8WSON
Raktáron6590 pcs
175 µA
Positive
Enable
3V
-
1
500mA
0.65V @ 500mA
60dB (1kHz)
Over Current, Over Temperature, Short Circuit
LP2989
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
8-WDFN Exposed Pad
8-WSON (4x4)
9 mA
RFQ
RT9166A-12GGL
Richtek USA Inc.
IC REG LINEAR 1.2V 600MA SOT223
Raktáron15500 pcs
300 µA
Positive
-
1.2V
-
1
600mA
0.58V @ 600mA (Typ)
55dB (1kHz)
Over Current, Over Temperature
RT9166
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
5.5V
Fixed
TO-261-4, TO-261AA
SOT-223
-
RFQ
LP5951MFX-1.5
Texas Instruments
IC REG LINEAR 1.5V 150MA SOT23-5
Raktáron17640 pcs
55 µA
Positive
Enable
1.5V
-
1
150mA
0.35V @ 150mA
60dB ~ 50dB (100Hz ~ 10kHz)
Over Current, Over Temperature, Short Circuit
LP5951
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
70 µA
RFQ
AP2115R5A-2.5TRG1
Diodes Incorporated
IC REG LINEAR 2.5V 1A SOT89-5
Raktáron71910 pcs
80 µA
Positive
Enable
2.5V
-
1
1A
0.75V @ 1A
65dB (100Hz ~ 1kHz)
Over Current, Over Temperature
AP2115
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6V
Fixed
SOT-89-5/6
SOT-89-5
-
RFQ
MIC5219YMT-TR
Microchip Technology
IC REG LIN POS ADJ 500MA 6TMLF
Raktáron31900 pcs
8 µA
Positive
Enable
Adjustable
-
1
500mA
0.6V @ 500mA
75dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
MIC5219
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
12V
Adjustable
6-UDFN Exposed Pad, 6-TMLF®
6-TMLF® (2x2)
-
RFQ
LMS8117AMP-ADJ
Texas Instruments
IC REG LINEAR POS ADJ 1A SOT223
Raktáron7990 pcs
5 mA
Positive
-
1.25V
13.8V
1
1A
1.25V @ 1A
60 ~ 75 dB (120Hz)
Over Current, Over Temperature
LMS8117
Tape & Reel (TR)
-
0°C ~ 125°C
Surface Mount
15V
Adjustable
TO-261-4, TO-261AA
SOT-223
10 mA
RFQ
RP101N181D-TR-FE
Nisshinbo Micro Devices Inc.
IC REG LINEAR 1.8V 300MA SOT23-5
Raktáron77320 pcs
25 µA
Positive
Enable
1.8V
-
1
300mA
0.34V @ 150mA
75dB (1kHz)
Over Current
RP101
Tape & Reel (TR)
RP101x
-40°C ~ 85°C
Surface Mount
5.25V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
TPS74301RGWT
Texas Instruments
IC REG LIN POS ADJ 1.5A 20VQFN
Raktáron6942 pcs
115 µA
Positive
Enable, Power Good, Tracking
0.8V
3.6V
1
1.5A
0.12V @ 1.5A
73dB ~ 42dB (1kHz ~ 800kHz)
Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
TPS74301
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Adjustable
20-VQFN Exposed Pad
20-VQFN (5x5)
1.5 mA
RFQ
LP2980AIM5-4.7
Texas Instruments
IC REG LINEAR 4.7V 50MA SOT23-5
Raktáron11730 pcs
95 µA
Positive
Enable
4.7V
-
1
50mA
0.22V @ 50mA
63dB (1kHz)
Over Current, Over Temperature, Short Circuit
LP2980
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
SC-74A, SOT-753
SOT-23-5
1.2 mA
RFQ
NCP561SN28T1G
onsemi
IC REG LINEAR 2.8V 150MA 5TSOP
Raktáron13700 pcs
1 µA
Positive
Enable
2.8V
-
1
150mA
0.23V @ 150mA
-
Over Current, Over Temperature
NCP561
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6V
Fixed
SOT-23-5 Thin, TSOT-23-5
5-TSOP
8 µA
RFQ
TLE7272D
Infineon Technologies
IC REG LINEAR 5V 300MA TO252-5
Raktáron11370 pcs
30 µA
Positive
Inhibit, Reset
5V
-
1
300mA
0.5V @ 200mA
60dB (100Hz)
Over Current, Over Temperature, Short Circuit
TLE7272
Tape & Reel (TR)
-
-40°C ~ 150°C
Surface Mount
42V
Fixed
TO-252-5, DPak (4 Leads + Tab), TO-252AD
PG-TO252-5
40 µA
RFQ
MP8903DG-2.5-LF-Z
Monolithic Power Systems Inc.
IC REG LIN POS ADJ 150MA 8QFN
Raktáron103500 pcs
-
Positive
Enable
1.25V (2.5V)
5V
1
150mA
0.125V @ 150mA, -
50dB ~ 20dB (1kHz ~ 1MHz)
Over Temperature
MP8903
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6.5V
Adjustable (Fixed)
8-TFDFN Exposed Pad
8-QFN (2x2)
-
RFQ
IRU1117CD
Infineon Technologies
IC REG LINEAR POS ADJ 800MA DPAK
Raktáron7160 pcs
10 mA
Positive
-
2.5V
3.6V
1
800mA
1.3V @ 1A
70dB (120Hz)
Over Current, Over Temperature
IRU1117CD
Tube
-
0°C ~ 150°C
Surface Mount
7V
Adjustable
TO-252-3, DPak (2 Leads + Tab), SC-63
D-Pak
-
RFQ
LM340T-15
Texas Instruments
IC REG LINEAR 15V 1.5A TO220-3
Raktáron25775 pcs
8 mA
Positive
-
15V
-
1
1.5A
2V @ 1A
80dB (120Hz)
Over Temperature, Short Circuit
LM340
Tube
-
0°C ~ 125°C
Through Hole
35V
Fixed
TO-220-3
TO-220-3
-
RFQ
LMS1587CT-1.5
Texas Instruments
IC REG LINEAR 1.5V 3A TO220-3
Raktáron16420 pcs
7 mA
Positive
-
1.5V
-
1
3A
1.3V @ 3A
60 ~ 72 dB (120Hz)
Over Current, Over Temperature
LMS1587
Tube
-
0°C ~ 125°C
Through Hole
13V
Fixed
TO-220-3
TO-220-3
13 mA
RFQ
TPS7A6301QPWPRQ1
Texas Instruments
IC REG LIN POS ADJ 14HTSSOP
Raktáron29550 pcs
35 µA
Positive
Enable
2.5V
7V
1
200mA
0.5V @ 250mA
60dB ~ 30dB (100Hz ~ 150kHz)
Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
TPS7A6301
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 150°C
Surface Mount
40V
Adjustable
14-PowerTSSOP (0.173", 4.40mm Width)
14-HTSSOP
-
RFQ
MP20046DQ-S-LF-Z
Monolithic Power Systems Inc.
IC REG LINEAR 3.3V 2A 10QFN
Raktáron29843 pcs
300 µA
Positive
Enable, Power Good
3.3V
-
1
2A
0.4V @ 2A
70dB (100Hz)
Over Current, Over Temperature
MP20046
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
10-VFDFN Exposed Pad
10-QFN (3x3)
-
RFQ
LF33ABPT
STMicroelectronics
IC REG LINEAR 3.3V 500MA PPAK
Raktáron15690 pcs
1 mA
Positive
Enable
3.3V
-
1
500mA
0.7V @ 500mA
80dB ~ 65dB (120Hz ~ 65dB)
Over Current, Over Temperature
LF33
Tube
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
TO-252-5, DPak (4 Leads + Tab), TO-252AD
PPAK
12 mA
RFQ
AP2138N-3.6TRG1
Diodes Incorporated
IC REG LINEAR 3.6V 250MA SOT23-3
Raktáron298560 pcs
1.5 µA
Positive
-
3.6V
-
1
250mA
0.6V @ 250mA
-
Over Current
AP2138
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
6V
Fixed
TO-236-3, SC-59, SOT-23-3
SOT-23-3
-
RFQ
RT9073A-18GQZ
Richtek USA Inc.
IC REG LINEAR 1.8V 250MA 4ZQFN
Raktáron279910 pcs
3 µA
Positive
Enable
1.8V
-
1
250mA
0.8V @ 250mA
75dB (1kHz)
Over Current, Over Temperature
RT9073
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
5.5V
Fixed
4-XDFN Exposed Pad
4-ZQFN (1x1)
-
RFQ
NCP630GD2T
onsemi
IC REG LINEAR 3.47V 3A D2PAK-5
Raktáron9990 pcs
1 mA
Positive
Enable
3.47V
-
1
3A
1.25V @ 3A
85dB (1kHz)
Over Current, Over Temperature
NCP630
Tube
-
0°C ~ 125°C
Surface Mount
12V
Fixed
TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
D2PAK-5
2 mA
RFQ
NJM2397F
Nisshinbo Micro Devices Inc.
IC REG LINEAR POS ADJ 1.5A TO220
Raktáron13790 pcs
5 mA
Positive
-
1.5V
20V
1
1.5A
0.5V @ 500mA
55dB (120Hz)
Over Current, Over Temperature, Over Voltage
-
Tube
-
-40°C ~ 85°C
Through Hole
35V
Adjustable
TO-220-4 Full Pack
TO-220F-4
-
RFQ
LM2940CT-5.0
Texas Instruments
IC REG LINEAR 5V 1A TO220-3
Raktáron26760 pcs
15 mA
Positive
-
5V
-
1
1A
1V @ 1A
72dB (120Hz)
Over Temperature, Reverse Polarity, Short Circuit
LM2940
Tube
-
0°C ~ 125°C
Through Hole
26V
Fixed
TO-220-3
TO-220-3
60 mA
RFQ
UA723CN
Texas Instruments
IC REG LIN POS ADJ 150MA 14DIP
Raktáron76670 pcs
-
Positive
Current Limit
2V
37V
1
150mA
-
74dB ~ 86dB (50Hz ~ 10kHz)
-
UA723
Tube
-
0°C ~ 70°C
Through Hole
40V
Adjustable
14-DIP (0.300', 7.62mm)
14-PDIP
-
RFQ
NCP623MN-33R2G
onsemi
IC REG LINEAR 3.3V 150MA 6DFN
Raktáron17770 pcs
200 µA
Positive
Enable
3.3V
-
1
150mA
0.26V @ 150mA
70dB (1kHz)
Over Temperature, Short Circuit
NCP623
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
12V
Fixed
6-VDFN Exposed Pad
6-DFN (3x3)
-
RFQ
TPS7A02185PDQNR
Texas Instruments
IC REG LINEAR 1.85V 200MA 4X2SON
Raktáron44440 pcs
60 nA
Positive
Enable
1.85V
-
1
200mA
0.45V @ 200mA
55dB (1kHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
TPS7A02185
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
6V
Fixed
4-XDFN Exposed Pad
4-X2SON (1x1)
-
RFQ
RP109Q332D-TR-FE
Nisshinbo Micro Devices Inc.
IC REG LINEAR 3.3V 150MA SC88A
Raktáron155700 pcs
70 µA
Positive
Enable
3.3V
-
1
150mA
0.32V @ 150mA
75dB (1kHz)
Over Current
RP109
Tape & Reel (TR)
RP109x
-40°C ~ 85°C (TA)
Surface Mount
5.25V
Fixed
5-TSSOP, SC-70-5, SOT-353
SC-88A
-
RFQ
AP2210K-2.5TRE1
Diodes Incorporated
IC REG LINEAR 2.5V 300MA SOT23-5
Raktáron354680 pcs
180 µA
Positive
Enable
2.5V
-
1
300mA
0.5V @ 300mA
75dB (100Hz)
Over Current, Over Temperature, Reverse Polarity
AP2210
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
13.2V
Fixed
SC-74A, SOT-753
SOT-23-5
15 mA
RFQ
AP2213D-2.5TRE1
Diodes Incorporated
IC REG LINEAR 2.5V 500MA TO252-2
Raktáron16540 pcs
180 µA
Positive
-
2.5V
-
1
500mA
0.7V @ 500mA
75dB (100Hz)
Over Current, Over Temperature, Reverse Polarity
AP2213
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
18V
Fixed
TO-252-3, DPak (2 Leads + Tab), SC-63
TO-252-3
28 mA
RFQ
NJU7201L55
Nisshinbo Micro Devices Inc.
IC REG LINEAR 5.5V 100MA TO92-3
Raktáron15960 pcs
-
Positive
-
5.5V
-
1
100mA
0.6V @ 40mA
-
-
-
Tube
-
-25°C ~ 75°C
Through Hole
12V
Fixed
TO-226-3, TO-92-3 (TO-226AA)
TO-92-3
-
RFQ
MC78M05CDT
onsemi
IC REG LINEAR 5V 500MA DPAK
Raktáron10380 pcs
-
Positive
-
5V
-
1
500mA
-
80dB (120Hz)
Over Temperature, Short Circuit
MC78M05
Tube
-
0°C ~ 125°C
Surface Mount
35V
Fixed
TO-252-3, DPak (2 Leads + Tab), SC-63
DPAK
-
RFQ
TPS709135DBVR
Texas Instruments
IC REG LIN 1.35V 150MA SOT23-5
Raktáron62360 pcs
2.05 µA
Positive
Enable
1.35V
-
1
150mA
-
80dB ~ 52dB (10Hz ~ 1kHz)
Over Current, Over Temperature, Reverse Current, Under Voltage Lockout (UVLO)
TPS709135
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
30V
Fixed
SC-74A, SOT-753
SOT-23-5
350 µA
RFQ
PQ05VY3H3ZPH
Sharp Microelectronics
IC REG LINEAR POS ADJ 3.5A TO263
Raktáron5440 pcs
10 mA
Positive
Enable
1.5V
5V
1
3.5A
0.5V @ 3.5A
70dB (120Hz)
Over Current, Over Temperature
-
Tape & Reel (TR)
-
-20°C ~ 80°C
Surface Mount
7V
Adjustable
TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
TO-263
-
RFQ
MAX8878EUK30
Analog Devices Inc./Maxim Integrated
IC REG LINEAR LDO
Raktáron13432 pcs
180 µA
Positive
Enable
3V
-
1
150mA
0.165V @ 150mA (Typ)
-
Over Current, Over Temperature, Reverse Polarity, Short Circuit
-
Bulk
-
-40°C ~ 85°C (TA)
Surface Mount
6.5V
Fixed
SC-74A, SOT-753
SOT-23-5
100 µA
RFQ
BD00IC0WHFV-GTR
Rohm Semiconductor
IC REG LINEAR POS ADJ 1A 6HVSOF
Raktáron132520 pcs
0.25 mA
Positive
Enable
0.8V
4.5V
1
1A
0.6V @ 1A
-
Over Current, Over Temperature, Soft Start
BD00IC0
Tape & Reel (TR)
-
-25°C ~ 85°C
Surface Mount
5.5V
Adjustable
6-SMD, Flat Lead Exposed Pad
6-HVSOF
500 µA
RFQ
LP3856ES-5.0
Texas Instruments
IC REG LIN 5V 3A DDPAK/TO263-5
Raktáron7440 pcs
4 mA
Positive
Enable
5V
-
1
3A
0.6V @ 3A
73dB ~ 57dB (120Hz)
Over Current, Over Temperature, Short Circuit
LP3856
Tube
-
-40°C ~ 125°C
Surface Mount
7V
Fixed
TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
DDPAK/TO-263-5
10 mA
RFQ
LDK320ADU33R
STMicroelectronics
IC REG LINEAR 3.3V 200MA SOT89
Raktáron115980 pcs
90 µA
Positive
-
3.3V
-
1
200mA
0.35V @ 200mA
88dB ~ 48dB (120Hz ~ 10kHz)
Over Current, Over Temperature
LDK320
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
18V
Fixed
TO-243AA
SOT-89
100 µA
RFQ
LP2966IMMX-1818
Texas Instruments
IC REG LINEAR 1.8V 150MA 8VSSOP
Raktáron13990 pcs
300 µA
Positive
Enable
1.8V
-
2
150mA
0.27V @ 150mA
60dB ~ 40dB (120Hz)
Over Current, Over Temperature, Short Circuit
LP2966
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
7V
Fixed
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
8-VSSOP
600 µA
RFQ