(cover \(\245~\256\330\).ai)

Output Voltage (V)
Output
Current
Output
Voltage
Accuracy
Package
Low Dropout Linear Regulator
Supervisory
p8
$,&
$,&
$,&
$,&
AIC1084
7
1.5/1.8/2.5/3.3/adj
5A
±1%
TO220, TO252, TO263
AIC1085
7
1.5/1.8/2.5/3.3/adj.
3A
±1%
TO220, TO252, TO263
AIC1086
7
1.8/2.5/2.85/3.3/5.0/adj.
1.5A
±1%
TO220, SOT223, TO263, TO252
AIC1117
7
1.8/2.5/2.85/3.3/5.0/adj.
800mA
±1%
TO252, TO220, SOT223, TO263
AIC1117A
7
1.8/2.5/2.85/3.3/5.0/adj.
1A
±1%
TO252, TO220, SOT223, TO263
3.3
500mA
±5%
SOP8, DIP8, QFN12L
Smart Low Dropout Linear Regulator
AIC1531
7
AIC1532
7
3.3
500mA
±5%
SOP8, DIP8
AIC1729
8
1.8 ~ 4.0V, in step of 0.1V
400mA
±2%
SOP8, DIP8
* Feature-
AIC1729: Dual Output with Voltage Detector
AIC1531/1532: Prioritized Input Source (VCC, VSBY, VAUX) to meet IAPC
Battery Management
p8
NiMH/NiCd Charger
Li-ion Charger
Li-ion Protection
$,&%6LQJOH+LJK3RZHU&KDUJLQJ
$,&$6LQJOH/RZ3RZHU&KDUJLQJ
$,&6LQJOH/RZ3RZHU&KDUJLQJ
$,&
$,&&HOO
$,&&HOO
$,&&HOO
$,&&HOO
Power Switch
Universal Power Switch
p8
USB Power Switch
$,&FK
$,&FK
$,&FK
$,&FK
$,&P$
$,&P$
$,&P$
High Current Driver
$,&
$,&
/%
$,&FK
$,&FK
$,&FK
$,&FK
p8
Ultra Low Dropout Linear Regulator
AIC1189
5.5
0.8~4.5V, in step of 0.1V
2A
±2%
SOT223, TO220, SOP8, TO252/5,
TO263/5
AIC1190
6
0.8~4.5V, in step of 0.1V
1A
±2%
SOT223, TO220, SOP8, TO252/5,
TO263/5
AIC1721/D
12
3.3/5.0
150/300mA
±1%
SOT89, TO92
AIC1722A
8
1.5/1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2
300mA
±2%
SOT89, TO92, SOT23
AIC1723A
8
1.5/1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2
500mA
±2%
SOT23, TO252, SOT89, SOT223
AIC1730
8
1.8~3.3V, in step of 0.1V
150mA
±2%
SOT23-5
AIC1731
12
1.3/1.5/1.8/2.5/2.8/3.0/3.3
300mA
±2%
SOT23-5, SOT89-5
AIC1733
12
1.3/1.5/1.8/2.5/2.8/3.0/3.3
500mA
±2%
SOT23-5, SOT89-5, TO-252-5
AIC1734
12
1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2
300mA
±2%
SOT89, TO92, SOT23
AIC1735
12
1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2
500mA
±2%
SOT89, SOT223, TO252, SOT23
AIC1742
9
1.5/1.8/2.0/2.5/2.8/2.85/2.9/3.0/3.3
150mA
±2%
SOT23-5
AIC1746
5.5
1.1~4.2V, in step of 0.1V
150mA
±2%
SOT23/5, TSOT23/5, SC70/5.
SOT89/5, DFNL 2x2
AIC1747
5.5
1.1~4.2V, in step of 0.1V
300mA
±2%
SOT23/5, TSOT23/5, SC70/5.
SOT89/5, DFNL 2x2
AIC1750
5.5
1.1 ~ 3.3V, in step of 0.1V
150mA/150mA
±2%
SOT23-6, TSOT23-6, DFN6L 2x2
-3.0/-3.3/-5.0
5mA
±1.5%
Reference Voltage (V)
Sink Current
Reference
Voltage
Accuracy
Negative Voltage Regulator
AIC1714
-13
Part No.
Cathode
Voltage
max. (V)
SOT89, TO92
Package
Voltage Reference
AIC431
30
2.495
250µA~200mA
±0.5%
SOP8, SOT23, SOT89, TO92
TL431
30
2.495
250µA~200mA
±1.6%
SOP8, SOT23, SOT89, TO92
TL431A
30
2.495
250µA~200mA
±1.0%
SOP8, SOT23, SOT89, TO92
Part No.
Input
Voltage
max. (V)
Output Voltage (V)
Output
Current
Load
Regulation
AIC1383
6
adj.
1.5A
±25mV
SOP8
AIC1383A
6
adj.
2A
±20mV
SOP8, TO252-5
AIC1383B
6
adj.
3A
±45mV
SOP8, TO252-5, TO263-5
AIC1384
5.5
adj.
3A
±25mV
SOP8, SOP8 Exposed Pad
1.6X VSET
500mA
±0.5%
SOP8
Package
DDR Regulator
Fan Control Driver IC
AIC1993
2
Selection Guide
Analog Integrations Corporation
5.5
www.analog.com.tw
3
Input
Voltage
max. (V)
Part No.
Current Function
Part No.
Supply Voltage (V)
Internal
Switch
Output Voltage (V)
(A)
External
Switch
IOUT
ISW Limit
Control Mode
Low IQ
(<100µA)
F: PFM
S: PSM
W: PWM
Freq.
(KHZ)
Description
Package
min.
max.
AIC1610
1.1
5.5
1.8 ~ 5.5V
1.0
20µA
F
200
High Efficiency Synchronous Step-Up PFM DC-DC Converter
MSOP8
AIC1611
1.1
5.5
1.8 ~ 5.5V
0.65
20µA
F
200
High Efficiency Synchronous Step-Up PFM DC-DC Converter
MSOP8
AIC1612
1.1
5.5
1.8 ~ 5.5V
1.0/0.65
20µA
F
200
High Efficiency Selectable Current Limit Synchronous Step-Up PFM DC/DC Converter
MSOP10
AIC1628
4.0
20.0
VIN ~ 4.5VIN
0.3 (BJT)
100µA
S/F
90 ~ 250
High-Efficiency, Step-Up PFM/PSM DC/DC Controller
SOP8, DIP8
AIC1630
1.8
7.0
VIN ~ 4.5VIN
0.7 (BJT)
S
120
Step-Up PSM DC/DC Controller with Low Battery Detector
SOP8, DIP8
AIC1631
1.5
7.0
VIN ~ 7.0V
2.0
S
120
500mA, High Efficiency Step-Up PSM DC/DC Converter
SOP8, DIP8
AIC1633
1.8
7.0
VIN ~ 7.0V
0.8
S
120
200mA, Step-Up PSM DC/DC Converter
SOP8, DIP8
AIC1634
2.6
10.0
VIN ~ 30.0V
0.5
100µA
W
1400
1.4MHz Current-Mode Step-Up PWM DC/DC Converter
SOT23-6
AIC1638
0.9
6.0
2.7, 3.0, 3.3, 4.5, 5.0
15µA
F
105
1-Cell, 3-Pin, Step-Up PFM DC/DC Converter
SOT89, TO92, SOT23
AIC1639
0.9
6.0
2.7, 3.0, 3.3, 5.0
18µA
F
105
1-Cell, 3-Pin, Step-Up PFM DC/DC Controller
SOT89, TO92, SOT23
AIC1642
0.9
6.0
2.7, 3.0, 3.1, 3.3, 3.7, 4.5, 5.0
15µA
F
105
3-Pin One-Cell Step-Up PFM DC/DC Converter
SOT89, TO92, SOT23
AIC1647
2.5
5.5
VIN ~ 30.0V
70µA
W
1200
White LED Step-Up PWM Converter
SOT23-5, TSOT23-5, QFN12L
AIC1648
2.5
5.5
VIN ~ 22.0V
70µA
W
1200
Built-in OVP White LED Step-Up PWM Converter
SOT23-6, TSOT23-6
AIC1880
2.6
5.5
VIN ~ 11.0V
AIC1896
2.5
10.0
VIN ~ 30.0V
100µA
W
1400
1.4MHz SOT23 Current-Mode Step-Up PWM DC/DC Converter
SOT23-6, TSOT23-6
AIC1899
2.5
5.5
VIN ~ 24.0V
100µA
W
1000
1.0MHz Current-Mode Step-Up PWM DC/DC Converter
SOT23-6, TSOT23-6
AIC1650
4.0
20.0
VOUT= -1.22 ~ (-40)V
0.025 (BJT)
100µA
F
100 ~ 320 High-Efficiency, Inverting PFM DC/DC Controller
SOP8, DIP8
AIC1652
2.4
7.0
VOUT= -1.22 ~ (-40)V
0.025 (BJT)
80µA
F
70 ~ 160
Micro-Power Inverting PFM DC/DC Controller
SOP8, DIP8
AIC1653
1.8
10.0
-1.23V ~ -28V
15µA
F
-
Micropower Inverting PFM DC/DC Converter in SOT-23-5
SOT23-5
AIC1660
1.5
6.0
(-VIN), 0.5VIN , 2.0VIN
0.2
36µA
-
10 / 50
Switched-Capacitor Voltage Converter. Improved Direct Replacement for the Popular 7660. SOP8, DIP8
AIC7660
1.5
6.0
(-VIN), 0.5VIN , 2.0VIN
0.2
30µA
-
10 / 50
Switched-Capacitor Voltage Converter. Improved Direct Replacement for the Popular 7660. SOP8, DIP8
AIC1841
2.7
5.5
5.0V (up to 4 WLEDs)
W
1000
High Efficiency 1.5X PWM Charge Pump For 4 White LEDs Backlighting
QFN12L
AIC1842
2.7
5.5
5.0V (up to 6 WLEDs)
W
1000
High Efficiency 1.5X PWM Charge Pump For 6 White LEDs Backlighting
QFN16L
AIC1843
2.7
5.5
5.0V (up to 4 WLEDs)
W
1000
High Efficiency 1.5X PWM Charge Pump For 4 White LEDs Backlighting
DFN12L
AIC1845
2.7
5.0
5.0
0.17
F
650
Regulated 5V PFM Charge Pump In SOT-23 For White LEDs Backlighting
SOT23-6
AIC1848
2.7
4.5
5.0
0.3
W
1800
Regulated 5V PWM Charge Pump In SOT-23 For White LEDs Backlighting
SOT23-6
Step Up Series
0.04~0.35
0.5 (BJT)
0.04~0.35
W
1.6
640 / 1220 Low Noise, Step-Up PWM DC/DC Converter
MSOP8
Inverting Series
0.1
Charge Pump Series
4
Selection Guide
Analog Integrations Corporation
13µA
www.analog.com.tw
5
Part No.
Internal
Switch
*Output Voltage (V)
(A)
Control Mode
External
Switch
Low IQ
(<100µA)
IOUT
ISW Limit
Current Function
Supply Voltage (V)
F: PFM
S: PSM
W: PWM
Freq.
(KHZ)
W
200
min.
max.
AIC1401
9.5
12.0
1.3V ~ VIN
AIC1550
2.5
6.5
0.75V ~ VIN
1.5
0.8
35µA
F/W
AIC1554
2.5
6.5
0.75V ~ VIN
1.5
0.7
35µA
F/W
AIC1555
2.5
6.5
0.75V ~ VIN
1.5
0.7
AIC1563
3
30.0
1.25V ~ VIN
2.0
1.5
AIC1565
4.75
15.0
0.9V ~ 0.8VIN
3.0
2.0
12.0
1.3V ~ 3.5V
Description
Package
Step Down Series
AIC1569A
5
15
AIC1573
3
30.0
1.25V ~ VIN
AIC1576
4
18.0
1.22V ~ VIN
5
AIC1577
4.5
24.0
0.8V ~ 20V
5
AIC1578
4
18.0
1.22V ~ VIN
5
AIC1579/L
9.5
12.0
2.0V ~ VIN / 1.3V~ VIN
AIC1580/L
9.5
12.0
2.0V ~ VIN / 1.3V~ VIN
AIC1591
8
25.0
AIC1592
4.5
6.5
AIC1594
4.5
30.0
1.8V ~ VIN
3.0
AIC1595
4.5
24.0
1.8V~ VIN
3.6
2.0
1.5
90µA
Step-Down DC/DC PWM Controller with Shutdown
SOP8
500~1000
Low-Noise Synchronous PWM Step-Down DC/DC Converter
MSOP8
500~1000
Low-Noise Synchronous PWM Step-Down DC/DC Converter
MSOP8
F/W
500 ~1000
Low-Noise Synchronous PWM Step-Down DC/DC Converter
MSOP8
S
0.1 ~ 100
Versatile DC/DC Converter
SOP8, DIP8
S/W
440
High-Efficiency, 2A Step-Down DC/DC Converter
SOP8 (Exposed Pad)
W
200 ~ 350
5-bit DAC, Synchronous PWM Power Controller
SOP20
S
0.1~100
1.5A Step-down DC/DC Converter
SOP8 (Exposed Pad)
S/F
90 ~ 280
High-Efficiency, Step-Down DC/DC Controller
SOP8, DIP8
External NMOS Step-Down PWM Controller
SOP8, MSOP8
High-Efficiency, Step-Down DC/DC Controller
SOP8, DIP8
F/W
500
S/F
90 ~ 280
5
W
200
Step-Down DC/DC Controller
SOP8
5
W
200
Step-Down DC/DC Controller with Shutdown
SOP8
0.8V ~ VIN
10
W
300
Single-Powered Synchronous Step-Down DC/DC Controller
MSOP10
0.8V ~ VIN
10
W
300
Single-Powered Synchronous Step-Down DC/DC Controller
MSOP10
2.0
W
150
2A STEP-DOWN PWM CONVERTER
SOP8, TO252-5
3.0
W
150
3A STEP-DOWN PWM CONVERTER
TO252-5, TO263-5, TO220-5, TO220B
90µA
AIC1596
4.5
30.0
1.8V~ VIN
3.6
3.0
W
150
3A STEP-DOWN PWM CONVERTER
TO263-5, TO220-5, TO220B
AIC2510
4.5
30.0
1.8V~ VIN
3.6
3.0
W
150
3A STEP-DOWN PWM CONVERTER
TO263-5, TO220-5, TO220B
AIC2511
4.5
24.0
1.8V~ VIN
3.6
3.0
AIC2573
4.5
25.0
0.8V~VIN
10
Current Function
Part No.
Supply Voltage (V)
Multioutput
min.
max.
Internal
Switch
*Output Voltage (V)
(A)
External
Switch
IOUT
ISW Limit
W
150
3A STEP-DOWN PWM CONVERTER
TO263-5, TO220-5, TO220B, TO252-5
W
300
Synchronous Buck DC/DC Controller
MSOP10
Control Mode
F: PFM
S: PSM
W: PWM
Freq.
(KHZ)
Description
Package
Multiple Output Series
AIC1340
1 Step Down Synchronous Controller
1 Linear Regulator 1 Linear Controller
10.4
12.0
VREF= 1.265, 1.275, 1.3
15
W
200
High Performance, Triple-Output, Auto-Tracking Combo Controller
SOP16
AIC1341
1 Step Down Synchronous Controller
2 Linear Controller
10.4
12.0
VREF= 1.27, 1.275, 1.3
15
W
200
High Performance, Triple-Output, Auto-Tracking Combo Controller
SOP16
AIC1533
2 Charge-pump
1 Linear Regulator
10.0
15.0
Charge-pump: +30
-10
Linear: VADJ= 1.25
W
1000
Triple-Output LCD Power Supply
SOP14, TSSOP16
AIC1570
1 Step Down Synchronous Controller
1 Linear Regulator 1 Linear Controller
10.4
12.0
Switching VOUT = 1.3~3.5
Linear VREF= 1.265, 1.275
15
W
200 ~ 350
5-bit DAC, Synchronous PWM Power Regulator with LDO and Linear Controller
SOP24
AIC1571
1 Step Down Synchronous Controller
2 Linear Controller
10.4
12.0
Switching VOUT= 1.3~3.5
Linear VREF= 1.27, 1.275
15
W
200 ~ 350
5-bit DAC, Synchronous PWM Power Regulator with Dual Linear Controllers
SOP24
0.03
0.03
0.3
Current Function
Part No.
Architecture
Supply Voltage (V)
Internal Switch
ISW Limit
(A)
External
Switch
IOUT
Control Mode
Low IQ
(<100µA)
F: PFM
S: PSM
W: PWM
Freq.
(KHZ)
Description
Package
Universal Application
6
AIC3842
Flyback
17.5 ~ 30.0
V
12mA
W
52
Current-Mode PWM Controller
SOP8, DIP8
AIC3843
Flyback
9.0 ~ 30.0
V
12mA
W
52
Current-Mode PWM Controller
SOP8, DIP8
MC34063A
Step Down, Step Up, Inverting
3.0 ~ 30.0
1.6mA
F
0.1 ~ 100
Industrial Standard, Universal DC/DC Converter
SOP8, DIP8
Selection Guide
Analog Integrations Corporation
1.6
www.analog.com.tw
7
(
&
&
)
(
'
#
%
!
$
#
"
!
Package
Reset Active
Timeout Period (mS)
Detector
Threshold
Hysteresis
&
Detecting
Voltage
Accuracy
Supply Current
max. (µA)
Supply Voltage (V)
Part No.
Supervisory
AIC809
0.9 ~ 6.0
3.0
±1.5%
-
230 (typ.)
SOT23-3
AIC810
0.9 ~ 6.0
3.0
±1.5%
-
230 (typ.)
SOT23-3
AIC811
0.9 ~ 6.0
3.0
±1.5%
-
230 (typ.)
SOT23-5, SOT143, SOT23-6
AIC812
0.9 ~ 6.0
3.0
±1.5%
-
230 (typ.)
SOT23-5
AIC1680
1.5 ~ 10.0
4.8
±2.5%
0.05 VDET
0.2
Part No.
Supply Voltage
max. (V)
OVP
AIC1686
16
3.9/5.5/13.2V
Part No.
Charging Discharge
Set
Function
-ɆV Cutoff
TO92, SOT23, SOT23-5,
SOT89
Power Good Indicator
Power Fail
Indicator
5V
-
-
Safety Timer
Cutoff
Max.
Voltage
Cutoff
Max.
Temp.
Cutoff
0ɆV
Cutoff Time
(of Safety Timer)
ɆT/Ɇt
Cutoff
Voltage
Reference
Package
DIP16
Package
NiMH/ NiCd Battery Charger
AIC1781B
Single
Yes
Yes
AIC1783A
Single
--
Yes
3 modes
(1.5%, 3.7%, 6%)
1 mode (6%)
AIC1784
Single
--
Yes
1 mode (6%)
Input Volt.
Range (V)
Charge
Current Range
(mA)
Charge
Termination
AIC1790
4.5~5.5
200~1000
1/10 Full Charge
Current
Part No.
Input Volt.
Range (V)
Quiescent
Current (µA)
Power-Off
Current (µA)
Part No.
Yes
Yes
Yes
Yes
SOP16, DIP16
No
Yes
Yes
No
SOP8, DIP8
Yes
Yes
Yes
Yes
SOP8, DIP8
Battery
Recharge
Battery
Safety Timer
Temp.
Cutoff
Protection
Package
Li-ion Charger
Yes
Yes
Yes
MSOP10 (Exposed Pad)
Overdischarge Overcurrent Overcharge
Protection
Protection Protection
Package
Li-ion Battery Protection
AIC1802
2.0~18.0
10
0.2
Yes
Yes
AIC1803
2.0~18.0
13
1.3
Yes
Yes
Yes, ± 30mV SOP8
Yes, ± 30mV SOP16
AIC1804
2.0~18.0
17
2.2
Yes
Yes
AIC1821
2.0~18.0
7
0.2
Yes
Yes
Part No.
Supply Voltage
max. (V)
RDS-ON (mΩ)
Channel No.
Current Limit
(A)
External
Control
UVLO
Yes, ± 30mV SOP16
Yes, ± 50mV SOT23-5
Package
Universal Power Switch
AIC1520
7.0
120
1
0.6~1.25
N
Y
SOT89, TO92
AIC1521
7.0
120
1
0.6~1.25
Y
Y
SOP8, MSOP8
AIC1523
7.0
120
1
0.6~1.25
Y
N
SOP8, MSOP8
Part No.
Supply Voltage
max. (V)
RDS-ON (mΩ)
Channel No.
Current Limit
(A)
External
Control
UVLO
Package
USB Power Switch
AIC1516
6.0
110
2
0.5~0.82
Y
Y
DIP8, SOP8
AIC1517
6.0
110
2
0.64~0.96
Y
Y
DIP8, SOP8
AIC1518
6.0
110
2
1~1.5
Y
Y
DIP8, SOP8
AIC1519
6.0
110
2
1.4~2.1
Y
Y
DIP8, SOP8
AIC1525
7.0
70
1
0.7~1.25
Y
Y
DIP8, SOP8
AIC1526
7.0
110
2
0.6~1.25
Y
Y
DIP8, SOP8, MSOP8
AIC1528
7.0
110
2
1~2
Y
Y
DIP8, SOP8, MSOP8
AIC1529
7.0
110
4
1~2
Y
Y
DIP16, SOP16
Part No.
Supply Voltage
max. (V)
Input Voltage
max. (V)
Output Voltage
max. (V)
Channel No.
Output Current (mA)
Package
High Current Driver
LB1268
8
12
10
3
1000
DIP8, SOP8
AIC2003
-
30
35
7
500
DIP16
AIC2803
-
30
50
8
500
DIP18
8
Selection Guide
Analog Integrations Corporation
www.analog.com.tw
COMPANY PROFILE
OVERVIEW
Based in the Hsinchu Science Park of northern Taiwan, Analog Integrations Corporation
(AIC) was founded in January 1992 and is an IC fabless company exclusively devoted to
designing, testing, and marketing power management integrated circuits. After
having successfully winning a sound reputation for excellence, quality, and customer
responsiveness, we quickly emerged as a leading manufacture of analog integrated
circuits in the Pacific Rim.
The Taiwanese government bestowed the “National Award of Small and Medium Enterprises”
upon AIC for its excellent management and significant dedication to innovation.
QUALITY
AIC is committed to providing customers with products of best-in-class quality and reliability
performance. Our quality policy enforcement starts with product design and is fulfilled
through development, testing and packaging of each product.
As the first IC design company in Taiwan receiving IQNet certification, AIC focuses on
manufacturing products with built-in quality in compliance with ISO9001 and ISO14001.
Furthermore, AIC has beencertified as Canon Green Activity, LGE Green Program, Ricoh
Production Audit, Samsung ECO Partner and Sony Green Partner (In customer name’s
sequence). Our extensive product testing ensures the highest standards of quality and
reliability of all AIC products.
Sales Channel
AIC Headquarters
Si-Soft Research Center, 3A1, No.1, Li-Hsin Rd.1, Science Park, HsinChu, 300, Taiwan.
TEL:+886-3-577-2500
FAX:+886-3-577-2510
E-MAIL: [email protected]
AIC TAIPEI
5F, No. 368, Sinhu 1st Rd., Nei-hu
Dist., Taipei, 114 Taiwan
TEL:
+886-2-2791-9100
FAX:
+886-2-2791-9190
E-MAIL: [email protected]
AIC CHINA (Shenzhen)
5D, Jinrun Building, No. 6019
Shennan Blvd., Shenzhen, China
TEL:
+86-755-8272-0601
FAX:
+86-755-8272-0606
E-MAIL: [email protected]
AIC CHINA (Suzhou)
Room 902B, Suzhou Sovereign Building
, No.8 Suhua Road, Suzhou Industrial
Park, Suzhou, China
TEL:
+86-512-8885-2268
FAX:
+86-512-8885-2260
E-MAIL: [email protected]
AIC JAPAN
4F, Advance Kamichi Bldg. 1-2-7
Kita-shinagawa, Shinagawa-ku,
Tokyo, 140-0001, Japan
TEL:
+81-3-5781-5430
FAX:
+81-3-5781-5431
E-MAIL: [email protected]
AIC KOREA
Room 1002, 10F, Jinju -Officetel,
683-20, Gongneung-dong, Nowon
-gu, Seoul, Korea
TEL:
+82-2-521-9828
FAX:
+82-2-521-9861
E-MAIL: [email protected]
AIC INTERNATIONAL
TEL:
+886-3-577-2500 ext.860
E-MAIL: [email protected]