TLV1117CKVURG3
Texas Instruments
IC REG LIN POS ADJ 800MA TO252-3
Disponível86250 pcs
10 mA
Positive
-
1.25V
13.7V
1
800mA
1.3V @ 800mA
75dB (120Hz)
Over Current, Over Temperature
TLV1117
Tape & Reel (TR)
-
0°C ~ 125°C
Surface Mount
15V
Adjustable
TO-252-3, DPak (2 Leads + Tab), SC-63
TO-252-3
-
RFQ
AP2204RB-5.0TRG1
Diodes Incorporated
IC REG LINEAR 5V 150MA SOT89
Disponível176210 pcs
50 µA
Positive
-
5V
-
1
150mA
-
-
-
AP2204
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
24V
Fixed
TO-243AA
SOT-89-3
2.5 mA
RFQ
SPX3819M5-L-1-2
MaxLinear, Inc.
IC REG LINEAR 1.2V 500MA SOT23-5
Disponível10570 pcs
8 µA
Positive
Enable
1.2V
-
1
500mA
-
-
Over Current, Over Temperature, Reverse Polarity
-
Bulk
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
SC-74A, SOT-753
SOT-23-5
30 mA
RFQ
ADP3338AKCZ-3.3-RL
Analog Devices Inc.
IC REG LINEAR 3.3V 1A SOT223-3
Disponível20228 pcs
190 µA
Positive
-
3.3V
-
1
1A
0.4V @ 1A
-
Over Current, Over Temperature
ADP3338
Tape & Reel (TR)
anyCAP®
-40°C ~ 85°C (TA)
Surface Mount
8V
Fixed
TO-261-4, TO-261AA
SOT-223-3
30 mA
RFQ
AP7341-285FS4-7
Diodes Incorporated
IC REG LINEAR 2.85V 300MA 4DFN
Disponível286840 pcs
50 µA
Positive
Enable
2.85V
-
1
300mA
0.27V @ 150mA
75dB (1kHz)
Over Current
AP7341
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.25V
Fixed
4-XDFN Exposed Pad
X2-DFN1010-4
-
RFQ
AP7312-1828W6-7
Diodes Incorporated
IC REG LINEAR 1.8V/2.8V SOT26
Disponível180460 pcs
80 µA
Positive
Enable
1.8V, 2.8V
-
2
150mA, 150mA
0.3V @ 150mA, 0.2V @ 150mA
65dB (1kHz)
Over Current, Over Temperature, Short Circuit
AP7312
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6V
Fixed
SOT-23-6
SOT-26
-
RFQ
MIC5203-4.7BM5
Micrel Inc.
IC REG LINEAR LDO POS VOLT
Disponível129280 pcs
750 µA
Positive
Enable
4.7V
-
1
80mA
0.6V @ 80mA
-
Over Current, Over Temperature, Reverse Polarity
-
Bulk
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
SC-74A, SOT-753
SOT-23-5
3 mA
RFQ
BD25KA5FP-E2
Rohm Semiconductor
IC REG LINEAR 2.5V 500MA TO252
Disponível58000 pcs
550 µA
Positive
-
2.5V
-
1
500mA
0.2V @ 200mA
50dB (120Hz)
Over Current, Over Temperature, Soft Start
BD25KA5
Tape & Reel (TR)
-
-40°C ~ 105°C
Surface Mount
5.5V
Fixed
TO-252-3, DPak (2 Leads + Tab), SC-63
TO-252
550 µA
RFQ
AP7341D-11FS4-7
Diodes Incorporated
IC REG LINEAR 1.1V 300MA 4DFN
Disponível309220 pcs
50 µA
Positive
Enable
1.1V
-
1
300mA
0.65V @ 300mA
75dB (1kHz)
Over Current
AP7341
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.25V
Fixed
4-XDFN Exposed Pad
X2-DFN1010-4
-
RFQ
SP6205EM5-L-2-85/TR
MaxLinear, Inc.
IC REG LIN 2.85V 500MA SOT23-5
Disponível15400 pcs
100 µA
Positive
Enable
2.85V
-
1
500mA
-
67dB (1kHz)
Over Current, Over Temperature
-
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
490 µA
RFQ
AP2127K-3.0TRG1
Diodes Incorporated
IC REG LINEAR 3V 300MA SOT23-5
Disponível514900 pcs
90 µA
Positive
-
3V
-
1
300mA
0.3V @ 300mA
68dB ~ 54dB (100Hz ~ 10kHz)
Over Current, Over Temperature
AP2127
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
TPS7A8300RGWT
Texas Instruments
IC REG LINEAR POS ADJ 2A 20VQFN
Disponível6032 pcs
4 mA
Positive
Enable, Power Good, Soft Start
0.8V
5V
1
2A
0.2V @ 2A
40dB (1MHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
TPS7A8300
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
6.5V
Adjustable/Programmable
20-VQFN Exposed Pad
20-VQFN (5x5)
5 mA
RFQ
TPS73215MDBVREP
Texas Instruments
IC REG LINEAR 1.5V 250MA SOT23-5
Disponível13586 pcs
550 µA
Positive
Enable
1.5V
-
1
250mA
0.15V @ 250mA
58dB ~ 37dB (100Hz ~ 10kHz)
Over Current, Over Temperature, Short Circuit, Reverse Polarity
TPS73215
Tape & Reel (TR)
-
-55°C ~ 125°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
950 µA
RFQ
REG103UA-5
Texas Instruments
IC REG LINEAR 5V 500MA 8SOIC
Disponível8659 pcs
0.7 mA
Positive
Enable
5V
-
1
500mA
0.28V @ 500mA
65dB (120Hz)
Over Current, Over Temperature
REG103
Tube
-
-40°C ~ 85°C
Surface Mount
15V
Fixed
8-SOIC (0.154", 3.90mm Width)
8-SOIC
1.3 mA
RFQ
NCP663SQ18T1G
onsemi
IC REG LINEAR 1.8V 100MA SC82AB
Disponível10630 pcs
1 µA
Positive
-
1.8V
-
1
100mA
0.7V @ 100mA
-
Over Current, Over Temperature
NCP663
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6V
Fixed
SC-82A, SOT-343
SC-82AB
6 µA
RFQ
MIC5301-3.0YD5
Micrel Inc.
IC REG LINEAR 3V 150MA TSOT23-5
Disponível115660 pcs
120 µA
Positive
Enable
3V
-
1
150mA
0.1V @ 150mA
75dB ~ 50dB (1kHz ~ 20kHz)
Over Current, Over Temperature
-
Bulk
-
-40°C ~ 125°C (TJ)
Surface Mount
5.5V
Fixed
SOT-23-5 Thin, TSOT-23-5
TSOT-23-5
-
RFQ
TPS71926-15DRVR
Texas Instruments
IC REG LIN 2.6V/1.5V 200MA 6WSON
Disponível16430 pcs
160 µA
Positive
Enable
2.6V, 1.5V
-
2
200mA
-
63dB ~ 44dB (100Hz ~ 1MHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
TPS719
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
6.5V
Fixed
6-WDFN Exposed Pad
6-WSON (2x2)
250 µA
RFQ
TPS70402PWPR
Texas Instruments
IC REG LIN POS ADJ 24HTSSOP
Disponível12170 pcs
250 µA
Positive
Enable, Power Good, Reset, Sequencing
1.22V
5.5V
2
1A, 2A
0.25V @ 1A, -
65dB (1kHz), 60dB (1kHz)
Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
TPS70402
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
6V
Adjustable
24-PowerTSSOP (0.173", 4.40mm Width)
24-HTSSOP
-
RFQ
TLV71718PDQNT
Texas Instruments
IC REG LINEAR 1.8V 150MA 4X2SON
Disponível61900 pcs
55 µA
Positive
Enable
1.8V
-
1
150mA
0.35V @ 150mA
70dB ~ 43dB (10Hz ~ 100kHz)
Over Current, Reverse Polarity, Short Circuit, Under Voltage Lockout (UVLO)
TLV71718
Tape & Reel (TR)
-
-40°C ~ 85°C (TJ)
Surface Mount
5.5V
Fixed
4-XDFN Exposed Pad
4-X2SON (1x1)
-
RFQ
MIC5330-PNYML
Micrel Inc.
DUAL, 300MA UCAP LDO
Disponível87830 pcs
120 µA
Positive
Enable
3V, 2.85V
-
2
300mA, 300mA
0.2V @ 300mA, 0.2V @ 300mA
70dB ~ 65dB (1kHz ~ 20kHz)
Over Current, Over Temperature
-
Bulk
ULDO™
-40°C ~ 125°C (TJ)
Surface Mount
5.5V
Fixed
8-VFDFN Exposed Pad, 8-MLF®
8-MLF® (2x2)
200 µA
RFQ
L7805ABP
STMicroelectronics
IC REG LINEAR 5V 1.5A TO220FP
Disponível51390 pcs
6 mA
Positive
-
5V
-
1
1.5A
2V @ 1A (Typ)
68dB (120Hz)
Over Temperature, Short Circuit
L7805
Tube
-
-40°C ~ 125°C
Through Hole
35V
Fixed
TO-220-3 Full Pack
TO-220FP
-
RFQ
AP2125KS-1.8TRG1
Diodes Incorporated
IC REG LINEAR 1.8V 300MA SC70-5
Disponível438520 pcs
90 µA
Positive
Enable
1.8V
-
1
300mA
0.36V @ 300mA
70db (100Hz ~ 1kHz)
Over Current, Over Temperature
AP2125
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
6V
Fixed
5-TSSOP, SC-70-5, SOT-353
SC-70-5
-
RFQ
TLV71328PDQNR
Texas Instruments
IC REG LINEAR 2.8V 150MA 4X2SON
Disponível523250 pcs
75 µA
Positive
Enable
2.8V
-
1
150mA
0.57V @ 150mA
70dB ~ 55dB (100Hz ~ 1MHz)
Over Current, Over Temperature, Reverse Polarity, Short Circuit, Under Voltage Lockout (UVLO)
TLV71328
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
5.5V
Fixed
4-XDFN Exposed Pad
4-X2SON (1x1)
-
RFQ
XC6210B302MR-G
Torex Semiconductor Ltd
IC REG LINEAR 3V 700MA SOT25
Disponível129010 pcs
55 µA
Positive
Enable
3V
-
1
700mA
0.075V @ 100mA
60dB (1kHz)
Over Current
XC6210
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6V
Fixed
SC-74A, SOT-753
SOT-25-5
-
RFQ
SC4216HSETRT
Semtech Corporation
IC REG LIN POS ADJ 3A 8SOIC
Disponível35700 pcs
50 µA
Positive
Enable
0.5V (0.5V)
4.8V
1
3A
0.7V @ 3A
-
Over Current, Over Temperature, Reverse Polarity
SC4216
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Adjustable (Fixed)
8-SOIC (0.154', 3.90mm Width) Exposed Pad
8-SOIC, EDP
3 mA
RFQ
TLV75509PDBVR
Texas Instruments
IC REG LINEAR 0.9V 500MA SOT23-5
Disponível106850 pcs
31 µA
Positive
Enable
0.9V
-
1
500mA
0.985V @ 500mA
52dB (1kHz ~ 1MHz)
Over Current, Over Temperature
TLV75509
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
TPS76828QD
Texas Instruments
IC REG LINEAR 2.8V 1A 8SOIC
Disponível11859 pcs
125 µA
Positive
Enable, Power Good
2.8V
-
1
1A
0.83V @ 1A
60dB (1kHz)
Over Current, Over Temperature, Reverse Polarity
TPS76828
Tube
-
-40°C ~ 125°C
Surface Mount
10V
Fixed
8-SOIC (0.154', 3.90mm Width)
8-SOIC
-
RFQ
LP2980IM5-4.7
Texas Instruments
IC REG LINEAR 4.7V 50MA SOT23-5
Disponível7400 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
TPS78450QDBVRQ1
Texas Instruments
IC POWER
Disponível85450 pcs
40 µA
Positive
Current Limit, Enable, Soft Start
5V
-
1
300mA
0.115V @ 300mA
60dB ~ 30dB (1kHz ~ 1MHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
-
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 150°C (TJ)
Surface Mount
6V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
NCV8560SN150T1G
onsemi
IC REG LINEAR 1.5V 150MA 5TSOP
Disponível9040 pcs
170 µA
Positive
Enable
1.5V
-
1
150mA
-
62dB ~ 38dB (120Hz ~ 10kHz)
Over Current, Over Temperature
NCV8560
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 125°C
Surface Mount
6V
Fixed
SOT-23-5 Thin, TSOT-23-5
5-TSOP
-
RFQ
MAX8867EUK28+T
Analog Devices Inc./Maxim Integrated
IC REG LDO 2.8V 0.15A SOT23-5
Disponível33654 pcs
180 µA
Positive
Enable
2.8V
-
1
150mA
0.165V @ 150mA (Typ)
63dB (10kHz)
Over Current, Over Temperature, Reverse Polarity, Short Circuit
MAX886
Strip
-
-40°C ~ 85°C (TA)
Surface Mount
6.5V
Fixed
SC-74A, SOT-753
SOT-23-5
100 µA
RFQ
MIC5252-2.8YMLTR
Microchip Technology
150 MA HIGH PSRR, LOW NOISE MICR
Disponível117540 pcs
150 µA
Positive
Enable
2.8V
-
1
150mA
0.25V @ 150mA
63dB ~ 48dB (10Hz ~ 10kHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
-
Bulk
-
-40°C ~ 125°C (TJ)
Surface Mount
6V
Fixed
6-VDFN Exposed Pad
6-VDFN (2x2)
200 µA
RFQ
R1511S001C-E2-FE
Nisshinbo Micro Devices Inc.
IC REG LIN POS ADJ 300MA 6HSOP
Disponível29530 pcs
180 µA
Positive
Enable
3V
9V
1
300mA
1.5V @ 300mA
65dB (1kHz)
Over Current, Over Temperature
R1511
Tape & Reel (TR)
R1511x
-40°C ~ 105°C (TA)
Surface Mount
36V
Adjustable
6-SOIC Variation (0.154", 3.90mm Width), 4 Leads + 2 Fins
6-HSOP-J
-
RFQ
LT1129CST-3.3#TRPBF
Analog Devices Inc.
IC REG LIN 3.3V 700MA SOT223-3
Disponível11346 pcs
70 µA
Positive
Enable
3.3V
-
1
700mA
0.7V @ 700mA
64dB (120Hz)
Over Temperature, Reverse Polarity
LT1129
Tape & Reel (TR)
-
0°C ~ 125°C
Surface Mount
30V
Fixed
TO-261-4, TO-261AA
SOT-223-3
90 mA
RFQ
REG101NA-2.85/250
Texas Instruments
IC REG LIN 2.85V 100MA SOT23-5
Disponível24831 pcs
500 µA
Positive
Enable
2.85V
-
1
100mA
0.13V @ 100mA
65dB (120Hz)
Over Current, Over Temperature
REG101
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
10V
Fixed
SC-74A, SOT-753
SOT-23-5
650 µA
RFQ
S-818A33AUC-BGNT2G
ABLIC Inc.
IC REG LINEAR 3.3V 200MA SOT89-5
Disponível82750 pcs
500 nA
Positive
Enable
3.3V
-
1
200mA
0.44V @ 60mA
45dB (100Hz)
-
S-818
Tape & Reel (TR)
S-818
-40°C ~ 85°C (TA)
Surface Mount
10V
Fixed
SOT-89-5/6
SOT-89-5
40 µA
RFQ
LP2953AIM-3.3
Texas Instruments
IC REG LIN POS ADJ 250MA 16SOIC
Disponível8200 pcs
170 µA
Positive
Enable
1.23V (3.3V)
29V
1
250mA
0.8V @ 250mA
-
Over Current, Over Temperature, Reverse Polarity
LP2953
Tube
-
-40°C ~ 125°C
Surface Mount
30V
Adjustable (Fixed)
16-SOIC (0.154", 3.90mm Width)
16-SOIC
33 mA
RFQ
NJM78L05UA-TE1
Nisshinbo Micro Devices Inc.
IC REG LINEAR 5V 100MA SOT89
Disponível88090 pcs
6 mA
Positive
-
5V
-
1
100mA
-
69dB (120Hz)
Over Temperature, Short Circuit
NJM78L05
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
30V
Fixed
TO-243AA
SOT-89
-
RFQ
TPS7B6733QPWPRQ1
Texas Instruments
IC REG LIN 3.3V 450MA 20HTSSOP
Disponível41772 pcs
25 µA
Positive
Enable, Reset
3.3V
-
1
450mA
0.3V @ 200mA
60dB ~ 40dB (100Hz ~ 100kHz)
Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
TPS7B6733
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 150°C
Surface Mount
40V
Fixed
20-PowerTSSOP (0.173", 4.40mm Width)
20-HTSSOP
35 µA
RFQ
FAN1084MC33X
onsemi
IC REG LINEAR 3.3V 4.5A TO263-3
Disponível7260 pcs
4 mA
Positive
-
3.3V
-
1
4.5A
1.5V @ 4.5A
-
Over Temperature
FAN1084
Tape & Reel (TR)
-
25°C ~ 125°C
Surface Mount
7V
Fixed
TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
D²PAK (TO-263)
-
RFQ
MC7815BDTRKG
onsemi
IC REG LINEAR 15V 1A DPAK
Disponível137480 pcs
8 mA
Positive
-
15V
-
1
1A
2V @ 1A (Typ)
58dB (120Hz)
Over Temperature, Short Circuit
MC7815
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
35V
Fixed
TO-252-3, DPak (2 Leads + Tab), SC-63
DPAK
-
RFQ
BH15LB1WG-TR
Rohm Semiconductor
IC REG LINEAR 1.5V 150MA 5SSOP
Disponível125810 pcs
70 µA
Positive
Enable
1.5V
-
1
150mA
-
70dB (1kHz)
Over Current, Over Temperature
BH15LB1
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
5-SSOP
-
RFQ
TPS71913-28DRVR
Texas Instruments
IC REG LIN 1.3V/2.8V 200MA 6WSON
Disponível41640 pcs
160 µA
Positive
Enable
1.3V, 2.8V
-
2
200mA
-, 0.4V @ 200mA
63dB ~ 44dB (100Hz ~ 1MHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
TPS71913
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
6.5V
Fixed
6-WDFN Exposed Pad
6-WSON (2x2)
250 µA
RFQ
LM337KC
Texas Instruments
IC REG LIN NEG ADJ 1.5A TO220-3
Disponível5080 pcs
-
Negative
-
-1.2V
-37V
1
1.5A
-
77dB (120Hz)
Over Temperature, Short Circuit
LM337
Tube
-
0°C ~ 125°C
Through Hole
-40V
Adjustable
TO-220-3
TO-220-3
-
RFQ
TA4808BF(T6L1,NQ)
Toshiba Semiconductor and Storage
IC REG LINEAR 8V 1A PW-MOLD
Disponível53510 pcs
1.7 mA
Positive
-
8V
-
1
1A
0.69V @ 1A (Typ)
56dB (120Hz)
Over Current, Over Temperature
TA4808
Tape & Reel (TR)
-
-40°C ~ 150°C
Surface Mount
16V
Fixed
TO-252-3, DPak (2 Leads + Tab), SC-63
PW-MOLD
20 mA
RFQ
TPS75633KC
Texas Instruments
IC REG LINEAR 3.3V 5A TO220-5
Disponível9220 pcs
200 µA
Positive
Enable
3.3V
-
1
5A
0.5V @ 5A
60dB (100Hz)
Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
TPS75633
Tube
-
-40°C ~ 125°C
Through Hole
5.5V
Fixed
TO-220-5
TO-220-5
-
RFQ
NCP177AMX330TCG
onsemi
IC REG LINEAR 3.3V 500MA 4XDFN
Disponível353040 pcs
90 µA
Positive
Enable
3.3V
-
1
500mA
0.175V @ 500mA
75dB (1kHz)
Over Current, Over Temperature
NCP177
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
5.5V
Fixed
4-XDFN Exposed Pad
4-XDFN (1x1)
-
RFQ
LM1117MP-3.3
Texas Instruments
IC REG LINEAR FIXED POS LDO REG
Disponível15570 pcs
5 mA
Positive
-
3.3V
-
1
800mA
1.2V @ 800mA
75dB (120Hz)
Over Current, Over Temperature
-
Bulk
LM1117-3.3
0°C ~ 125°C
Surface Mount
15V
Fixed
TO-261-4, TO-261AA
SOT-223
10 mA
RFQ
LP2989AIM-5.0
Texas Instruments
IC REG LINEAR 5V 500MA 8SOIC
Disponível7789 pcs
175 µA
Positive
Enable
5V
-
1
500mA
0.65V @ 500mA
60dB (1kHz)
Over Current, Over Temperature, Short Circuit
LP2989
Tube
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
8-SOIC (0.154", 3.90mm Width)
8-SOIC
9 mA
RFQ
LM317D2T-TR
STMicroelectronics
IC REG LINEAR POS ADJ 1.5A D2PAK
Disponível31530 pcs
10 mA
Positive
-
1.2V
37V
1
1.5A
-
80dB ~ 65dB (120Hz)
Over Current, Over Temperature, Short Circuit
LM317
Tape & Reel (TR)
-
0°C ~ 125°C
Surface Mount
40V
Adjustable
TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
D²PAK
-
RFQ