TPS7A4201DGNT
Texas Instruments
IC REG LIN POS ADJ 50MA 8HVSSOP
In stoc47580 pcs
65 µA
Positive
Enable
1.175V
26V
1
50mA
1.3V @ 50mA
65dB (100Hz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
TPS7A4201
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
28V
Adjustable
8-TSSOP, 8-MSOP (0.118', 3.00mm Width) Exposed Pad
8-HVSSOP
-
RFQ
RT9020-30GU5
Richtek USA Inc.
IC REG LINEAR 3V 500MA SC70-5
In stoc7180 pcs
50 µA
Positive
Enable, Soft Start
3V
-
1
500mA
0.4V @ 500mA
55dB (10kHz)
Over Current, Over Temperature
RT9020
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.5V
Fixed
5-TSSOP, SC-70-5, SOT-353
SC-70-5
-
RFQ
MIC5305-2.85YML
Micrel Inc.
IC REG LINEAR 150MA MICROCAP
In stoc90820 pcs
150 µA
Positive
Enable
2.85V
-
1
150mA
0.85V @ 150mA
85dB ~ 65dB (1kHz ~ 10kHz)
Over Current, Over Temperature
-
Bulk
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
6-VDFN Exposed Pad, 6-MLF®
6-DFN (2x2)
-
RFQ
PQ120DNA1ZPH
Sharp Microelectronics
IC REG LINEAR 12V 1A SC63
In stoc7870 pcs
8 mA
Positive
Enable
12V
-
1
1A
0.5V @ 500mA
60dB (120Hz)
Over Current, Over Temperature
-
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
24V
Fixed
TO-252-5, DPak (4 Leads + Tab), TO-252AD
SC-63
-
RFQ
XC6503D121GR-G
Torex Semiconductor Ltd
IC REG LINEAR 1.2V 500MA 4USP
In stoc150040 pcs
30 µA
Positive
Enable
1.2V
-
1
500mA
0.25V @ 300mA
55dB (1kHz)
Over Current, Over Temperature
XC6503
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
6V
Fixed
4-UDFN Exposed Pad
4-USP (1.2x1.6)
-
RFQ
ADP7159ARDZ-02-R7
Analog Devices Inc.
IC REG LINEAR POS ADJ 2A 8SOIC
In stoc7374 pcs
8 mA
Positive
Enable
1.2V
2.3V
1
2A
0.28V @ 2A
61dB ~ 45dB (1kHz ~ 1MHz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
ADP7159
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Adjustable
8-SOIC (0.154", 3.90mm Width) Exposed Pad
8-SOIC-EP
14 mA
RFQ
TLV73312PQDBVRQ1
Texas Instruments
IC REG LINEAR 1.2V 300MA SOT23-5
In stoc187110 pcs
78 µA
Positive
Enable
1.2V
-
1
300mA
0.45V @ 300mA
-
Over Current, Over Temperature, UVLO
TLV733
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 125°C (TA)
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
NCP4687DH12T1G
onsemi
IC REG LINEAR 1.2V 500MA SOT89-5
In stoc9900 pcs
115 µA
Positive
Enable
1.2V
-
1
500mA
0.53V @ 500mA
75dB ~ 70dB (1kHz ~ 10kHz)
Over Current, Over Temperature
NCP4687
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.25V
Fixed
SOT-89-5/6
SOT-89-5
-
RFQ
LP2951CMX-3.3
Texas Instruments
IC REG LIN POS ADJ 100MA 8SOIC
In stoc4130 pcs
120 µA
Positive
Enable
1.235V (3.3V)
29V
1
100mA
0.6V @ 100mA
-
Over Current, Over Temperature, Short Circuit
LP2951
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
30V
Adjustable (Fixed)
8-SOIC (0.154', 3.90mm Width)
8-SOIC
14 mA
RFQ
LM217D2T
STMicroelectronics
IC REG LINEAR POS ADJ 1.5A D2PAK
In stoc9030 pcs
-
Positive
-
1.2V
37V
1
1.5A
-
80dB ~ 65dB (120Hz)
Over Current, Over Temperature
LM217
Tube
-
-25°C ~ 150°C
Surface Mount
40V
Adjustable
TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
D2PAK
-
RFQ
LT1965HQ#TRPBF
Analog Devices Inc.
IC REG LIN POS ADJ 1.1A 5DDPAK
In stoc6927 pcs
1.1 mA
Positive
Enable
1.2V
19.5V
1
1.1A
0.49V @ 1A
75dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
LT1965
Tape & Reel (TR)
-
-40°C ~ 150°C
Surface Mount
20V
Adjustable
TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
5-DDPAK
40 mA
RFQ
AP7115-30WG-7
Diodes Incorporated
IC REG LINEAR 3V 150MA SOT25
In stoc219440 pcs
80 µA
Positive
Enable
3V
-
1
150mA
0.3V @ 150mA
70dB (1kHz)
Over Current, Over Temperature
AP7115
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-25
-
RFQ
LX8117-00CST
Microsemi Corporation
IC REG LIN POS ADJ 800MA SOT223
In stoc14660 pcs
10 mA
Positive
-
1.25V
13.85V
1
800mA
1.2V @ 800mA
75dB (120Hz)
Over Current, Short Circuit
LX8117
Tube
-
0°C ~ 125°C
Surface Mount
15V
Adjustable
TO-261-4, TO-261AA
SOT-223, Power
-
RFQ
LF25ABDT
STMicroelectronics
IC REG LINEAR 2.5V 500MA DPAK
In stoc12450 pcs
1 mA
Positive
-
2.5V
-
1
500mA
0.7V @ 500mA
82dB ~ 65dB (120Hz ~ 10kHz)
Over Current, Over Temperature
LF25
Tube
-
-40°C ~ 125°C
Surface Mount
16V
Fixed
TO-252-3, DPak (2 Leads + Tab), SC-63
DPAK
12 mA
RFQ
NCP161ASN330T1G
onsemi
IC REG LINEAR 3.3V 450MA SOT23-5
In stoc132190 pcs
23 µA
Positive
Enable
3.3V
-
1
450mA
0.305V @ 450mA
91dB ~ 48dB (100Hz ~ 100kHz)
Over Current, Over Temperature, Soft Start
NCP161
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
KA7809AETU
onsemi
IC REG LINEAR 9V 1A TO220-3
In stoc8240 pcs
6 mA
Positive
-
9V
-
1
1A
2V @ 1A (Typ)
58dB (120Hz)
Over Temperature, Short Circuit
KA7809
Tube
-
0°C ~ 125°C
Through Hole
35V
Fixed
TO-220-3
TO-220-3
-
RFQ
LD59100PUR
STMicroelectronics
IC REG LINEAR POS ADJ 1A 8DFN
In stoc71120 pcs
130 µA
Positive
Enable
1.192V
5V
1
1A
0.5V @ 1A
78dB ~ 58dB (100Hz)
Over Current, Over Temperature, Reverse Polarity
LD59100
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Adjustable
8-VFDFN Exposed Pad
8-DFN (3x3)
280 µA
RFQ
LT3027EMSE#TRPBF
Analog Devices Inc.
IC REG LINEAR POS ADJ 10MSOP
In stoc15346 pcs
-
Positive
Enable
1.22V
20V
2
100mA, 100mA
0.45V @ 100mA, 0.45V @ 100mA
65dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
LT3027
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
20V
Adjustable
10-TFSOP, 10-MSOP (0.118', 3.00mm Width) Exposed Pad
10-MSOP-EP
-
RFQ
ADP1755ACPZ-R7
Analog Devices Inc.
IC REG LIN POS ADJ 1.2A 16LFCSP
In stoc13431 pcs
800 µA
Positive
Enable, Power Good, Soft Start
0.75V
3.3V
1
1.2A
0.2V @ 1.2A
65dB ~ 51dB (1kHz ~ 100kHz)
Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
ADP1755
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
3.6V
Adjustable
16-WQFN Exposed Pad, CSP
16-LFCSP (4x4)
1.4 mA
RFQ
MC78M24CTG
onsemi
IC REG LINEAR 24V 500MA TO220AB
In stoc64220 pcs
-
Positive
-
24V
-
1
500mA
-
70dB (120Hz)
Over Temperature, Short Circuit
MC78M24
Tube
-
0°C ~ 125°C
Through Hole
40V
Fixed
TO-220-3
TO-220
-
RFQ
BD750L2EFJ-CE2
Rohm Semiconductor
IC REG LINEAR 5V 200MA 8HTSOP
In stoc41434 pcs
6 µA
Positive
-
5V
-
1
200mA
0.7V @ 200mA
60dB (120Hz)
Over Current, Over Temperature
BD750
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 125°C
Surface Mount
45V
Fixed
8-SOIC (0.154', 3.90mm Width) Exposed Pad
8-HTSOP-J
15 µA
RFQ
NCV5661MN15T2G
onsemi
IC REG LINEAR 1.5V 1A 6DFN
In stoc65980 pcs
3 mA
Positive
Enable
1.5V
-
1
1A
1.3V @ 1A
70dB ~ 65dB (120Hz ~ 1kHz)
Over Current, Over Temperature
NCV5661
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 125°C
Surface Mount
9V
Fixed
6-VDFN Exposed Pad
6-DFN (3x3.3)
-
RFQ
LT1763CS8-2.5#PBF
Analog Devices Inc.
IC REG LINEAR 2.5V 500MA 8SOIC
In stoc9978 pcs
-
Positive
Enable
2.5V
-
1
500mA
0.45V @ 500mA
65dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
LT1763
Tube
-
-40°C ~ 125°C
Surface Mount
20V
Fixed
8-SOIC (0.154', 3.90mm Width)
8-SO
-
RFQ
BD7820FP-E2
Rohm Semiconductor
IC REG LINEAR POS ADJ 1A TO252-5
In stoc33720 pcs
0.35 mA
Positive
Enable
1V
5V
1
1A
1V @ 100mA
50dB (120Hz)
Over Current, Over Temperature
BD7820
Tape & Reel (TR)
-
-40°C ~ 105°C
Surface Mount
6V
Adjustable
TO-252-5, DPak (4 Leads + Tab), TO-252AD
TO-252-5
550 µA
RFQ
NJW4181U3-05B-TE2
Nisshinbo Micro Devices Inc.
IC REG LINEAR 5V 100MA SOT89-3
In stoc57430 pcs
20 µA
Positive
-
5V
-
1
100mA
-
-
Over Current, Over Temperature, Short Circuit
NJW4181
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
35V
Fixed
TO-243AA
SOT-89-3
-
RFQ
TPS79330DBVRG4
Texas Instruments
IC REG LINEAR 3V 200MA SOT23-5
In stoc13250 pcs
220 µA
Positive
Enable
3V
-
1
200mA
0.2V @ 200mA
70dB ~ 43dB (100Hz ~ 100kHz)
Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
TPS79330
Tape & Reel (TR)
-
-40°C ~ 150°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
ADP7142ACPZN5.0-R7
Analog Devices Inc.
IC REG LINEAR 5V 200MA 6LFCSP
In stoc21191 pcs
140 µA
Positive
Enable, Soft Start
5V
-
1
200mA
0.42V @ 200mA
88dB ~ 50dB (10kHz ~ 1MHz)
Over Temperature, Short Circuit
ADP7142
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
40V
Fixed
6-UDFN Exposed Pad, CSP
6-LFCSP-UD (2x2)
320 µA
RFQ
TPS7B8225QDGNRQ1
Texas Instruments
IC POWER
In stoc34210 pcs
5 µA
Positive
Enable
2.5V
-
1
300mA
-
60dB (100Hz)
Over Current, Over Temperature, Under Voltage Lockout (UVLO)
-
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 150°C (TJ)
Surface Mount
40V
Fixed
8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
8-HVSSOP
6.5 µA
RFQ
AP130-35WL-7
Diodes Incorporated
IC REG LINEAR 3.5V 300MA SC59-3
In stoc15060 pcs
100 µA
Positive
-
3.5V
-
1
300mA
0.5V @ 300mA
58dB (100Hz)
Over Current, Over Temperature, Short Circuit
AP130
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
5.5V
Fixed
TO-236-3, SC-59, SOT-23-3
SC-59-3
-
RFQ
MIC5305-4.6YMT
Micrel Inc.
IC REG LINEAR 150MA MICROCAP
In stoc90200 pcs
150 µA
Positive
Enable
4.6V
-
1
150mA
0.85V @ 150mA
85dB ~ 65dB (1kHz ~ 10kHz)
Over Current, Over Temperature
-
Bulk
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
6-UDFN Exposed Pad, 6-TMLF®
6-TMLF® (2x2)
-
RFQ
ADM7170ACPZ-2.5-R7
Analog Devices Inc.
IC REG LINEAR 2.5V 500MA 8LFCSP
In stoc13504 pcs
2 mA
Positive
Enable, Soft Start
2.5V
-
1
500mA
-
-
Over Current, Over Temperature
ADM7170
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
6.5V
Fixed
8-WFDFN Exposed Pad, CSP
8-LFCSP-WD (3x3)
5.1 mA
RFQ
NJM7918FA
Nisshinbo Micro Devices Inc.
IC REG LINEAR -18V 1.5A TO220F
In stoc13880 pcs
6 mA
Negative
-
-18V
-
1
1.5A
-
66dB (120Hz)
Over Temperature, Short Circuit
-
Bulk
-
-40°C ~ 85°C
Through Hole
-40V
Fixed
TO-220-3 Full Pack
TO-220F
-
RFQ
AZ2940H-3.3TRG1
Diodes Incorporated
IC REG LINEAR 3.3V 1A SOT223
In stoc6500 pcs
-
Positive
-
3.3V
-
1
1A
0.55V @ 1A
-
Over Current, Over Temperature, Reverse Polarity
-
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
13.2V
Fixed
TO-261-4, TO-261AA
SOT-223-3
-
RFQ
ADP1708ARDZ-R7
Analog Devices Inc.
IC REG LINEAR POS ADJ 1A 8SOIC
In stoc19026 pcs
390 µA
Positive
Enable
0.8V
5V
1
1A
0.6V @ 1A
70dB ~ 56dB (1kHz)
Over Current, Over Temperature
ADP1708
Tape & Reel (TR)
-
-40°C ~ 125°C (TJ)
Surface Mount
5.5V
Adjustable
8-SOIC (0.154", 3.90mm Width) Exposed Pad
8-SOIC-EP
1.55 mA
RFQ
MCP1725-3002E/MC
Microchip Technology
IC REG LINEAR 3V 500MA 8DFN
In stoc62890 pcs
220 µA
Positive
Enable, Power Good
3V
-
1
500mA
0.35V @ 500mA
60dB (100Hz)
Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
MCP1725
Tube
-
-40°C ~ 125°C
Surface Mount
6V
Fixed
8-VFDFN Exposed Pad
8-DFN (2x3)
-
RFQ
LT3021ES8-1.8#PBF
Analog Devices Inc.
IC REG LINEAR 1.8V 500MA 8SOIC
In stoc7077 pcs
250 µA
Positive
Enable
1.8V
-
1
500mA
0.285V @ 500mA
56dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
LT3021
Tube
-
-40°C ~ 125°C
Surface Mount
10V
Fixed
8-SOIC (0.154", 3.90mm Width)
8-SO
10 mA
RFQ
LP3985IM5-3.2
Texas Instruments
IC REG LINEAR 3.2V 150MA SOT23-5
In stoc14750 pcs
150 µA
Positive
Enable
3.2V
-
1
150mA
0.1V @ 150mA
50dB ~ 40dB (1kHz ~ 10kHz)
Over Current, Over Temperature, Short Circuit
LP3985
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
6V
Fixed
SC-74A, SOT-753
SOT-23-5
250 µA
RFQ
LT1521CS8-5#TRPBF
Analog Devices Inc.
IC REG LINEAR 5V 300MA 8SOIC
In stoc9051 pcs
25 µA
Positive
Enable
5V
-
1
300mA
0.75V @ 300mA
58dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
LT1521
Tape & Reel (TR)
-
0°C ~ 125°C
Surface Mount
20V
Fixed
8-SOIC (0.154', 3.90mm Width)
8-SO
12 mA
RFQ
LT3029EDE#TRPBF
Analog Devices Inc.
IC REG LINEAR POS ADJ 16DFN
In stoc6626 pcs
-
Positive
Enable
1.215V
19.5V
2
500mA, 500mA
0.46V @ 500mA, 0.46V @ 500mA
67dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
LT3029
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
20V
Adjustable
16-WFDFN Exposed Pad
16-DFN (4x3)
-
RFQ
LM317AEMP
Texas Instruments
IC REG LIN POS ADJ 1.5A SOT223-4
In stoc40864 pcs
10 mA
Positive
-
1.25V
37V
1
1.5A
-
80dB ~ 65dB (120Hz)
Over Current, Over Temperature, Short Circuit
LM317
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
40V
Adjustable
TO-261-4, TO-261AA
SOT-223-4
-
RFQ
RS3007-5.0AYF3
Runic Technology
IC REG LINEAR 5.0V 300MA SOT23-3
In stoc207950 pcs
4 µA
Positive
Enable
5V
-
1
300mA
0.4V @ 100mA
72dB ~ 60dB (217Hz ~ 10kHz)
Over Current, Over Temperature
-
Tape & Reel (TR)
-
-40°C ~ 85°C (TA)
Surface Mount
45V
Fixed
TO-236-3, SC-59, SOT-23-3
SOT-23-3
-
RFQ
TPS7330QDR
Texas Instruments
IC REG LINEAR 3V 500MA 8SOIC
In stoc16724 pcs
-
Positive
Enable, Reset
3V
-
1
500mA
0.5V @ 500mA
53dB (120Hz)
Over Current, Over Temperature, Reverse Polarity
TPS7330
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
10V
Fixed
8-SOIC (0.154', 3.90mm Width)
8-SOIC
550 µA
RFQ
NJM2872BF33-TE1
Nisshinbo Micro Devices Inc.
IC REG LINEAR 3.3V 150MA SOT23-5
In stoc126670 pcs
180 µA
Positive
Enable
3.3V
-
1
150mA
0.1V @ 60mA
75dB (1kHz)
Over Current, Short Circuit
NJM2872
Tape & Reel (TR)
-
-40°C ~ 85°C
Surface Mount
14V
Fixed
SC-74A, SOT-753
SOT-23-5 (MTP5)
-
RFQ
SP6205EM5-L-2-5
MaxLinear, Inc.
IC REG LINEAR 2.5V 500MA SOT23-5
In stoc6880 pcs
100 µA
Positive
Enable
2.5V
-
1
500mA
-
67dB (1kHz)
Over Current, Over Temperature
-
Bulk
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
490 µA
RFQ
MC7908CD2TR4G
onsemi
IC REG LINEAR -8V 1A D2PAK
In stoc4300 pcs
-
Negative
-
-8V
-
1
1A
1.3V @ 1A (Typ)
62dB (120Hz)
Over Current, Over Temperature
MC7908
Tape & Reel (TR)
-
0°C ~ 125°C
Surface Mount
-35V
Fixed
TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
D2PAK-3
-
RFQ
TC1269-3.3VUATR
Microchip Technology
IC REG LINEAR 3.3V 300MA 8MSOP
In stoc49160 pcs
90 µA
Positive
Enable
3.3V
-
1
300mA
0.48V @ 300mA
50dB (120Hz)
Over Current, Over Temperature
TC1269
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
6V
Fixed
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
8-MSOP
-
RFQ
NJU7201U55
Nisshinbo Micro Devices Inc.
IC REG LINEAR 5.5V 100MA SOT89-3
In stoc139890 pcs
-
Positive
-
5.5V
-
1
100mA
0.6V @ 40mA
-
-
-
Tube
-
-25°C ~ 75°C
Surface Mount
12V
Fixed
TO-243AA
SOT-89-3
-
RFQ
S-L2980A30MC-TF-G
ABLIC Inc.
IC REG LINEAR 3V 150MA SOT23-5
In stoc80850 pcs
1 µA
Positive
Enable
3V
-
1
150mA
0.15V @ 50mA
70dB (1kHz)
-
S-L2980
Tape & Reel (TR)
S-L2980
-40°C ~ 85°C (TA)
Surface Mount
10V
Fixed
SC-74A, SOT-753
SOT-23-5
140 µA
RFQ
RT9198-33GB
Richtek USA Inc.
IC REG LINEAR 3.3V 300MA SOT23-5
In stoc17000 pcs
130 µA
Positive
-
3.3V
-
1
300mA
0.33V @ 300mA
60dB ~ 30dB (100Hz ~ 10kHz)
Over Current, Over Temperature
RT9198
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
5.5V
Fixed
SC-74A, SOT-753
SOT-23-5
-
RFQ
MIC29301-5.0BU
Microchip Technology
IC REG LINEAR 5V 3A TO263-5
In stoc8620 pcs
-
Positive
Enable
5V
-
1
3A
0.6V @ 3A
-
Over Current, Over Temperature, Reverse Polarity, Transient Voltage
MIC29301-5.0
Bulk
-
-40°C ~ 125°C
Surface Mount
26V
Fixed
TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
TO-263-5
-
RFQ