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AT1202
Preliminary Product Information High Voltage Linear Regulator Features
* 2% Output Accuracy * 12A Quiescent Current * Shutdown Current <1A * High Output Voltage: Up to 28V * 30mA Output Current * Tiny SOT-25 Package
General Description
The AT1202 is high voltage, micropower linear regulator. Key feature include wide input voltage, low-noise, low-dropout and low-quiescent-current. The output voltage precision is within 2and output currents of up to 30mA.
Applications
* Microcontroller Power * Notebook Computers * Battery Operating system
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 1
AT1202
Preliminary Product Information High Voltage Linear Regulator
Pin Assignment
Ordering Information
Part number AT1202X AT1202X_GRE : Date Code *For more marking information, contact our sales representative directly Package SOT-25 SOT-25, Green Marking Date Code ,Date Code with one bottom line
Pin Description
Pin No. Symbol I/O Description
1 2 3 4 5
VIN GND OUT FB /SHDN
P P O I I
Power Supply Ground Regulator Output Feedback Input Shutdown input, active low.
Absolute Maximum Ratings
Item Symbol Ratings Units
Storage temperature Operating temperature VIN /SHDN,FB OUT Power consumption
TSTG TOPR
Pd*1
-55150 -3085 -0.3+30 -0.3(VIN+0.3) -0.3V+30 570
V V V mW
*1. Continuous Power Dissipation derate 7.1mW/ above +70
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 2
AT1202
Preliminary Product Information High Voltage Linear Regulator Electrical Characteristics
(VIN=15V, /SHDN = VIN, ILOAD=5A, Ta=TMIN to TMAX ,unless otherwise note. Typical Ta =250C)
Parameter
Symbol
Condition Min.
Values Typ. 12 1.240 12 100 80 0.5 Max. 28 15 20 3 5 1.265 1.28 30 350 2 1 0.25
Unit
Input Voltage Supply Current
VIN /SHDN=VIN, Ta =250C IIN /SHDN=VIN,VIN=6~28V, Ta=TMIN to TMAX /SHDN=GND, Ta =250C /SHDN=GND, Ta=TMIN to TMAX FB=OUT, Ta =250C VIN=6V to 28V,ILOAD=1mA FB=OUT, VIN=6V to 28V, Ta=TMIN to TMAX ILOAD=5A to 30mA VFB =1.3V
4 1.215 1.18 -10 0.33 RL =500,OUT set to 5V COUT =10F RL =500,COUT =10F OUT set to 5V with 90% output -1 1.4 -
V A A A A V V nA mV mA A F/mA ms %OUT A V V
Shutdown Supply Current
IIN1
Feedback Reference
VFB
Feedback Input Current Dropout Voltage Output Current Limit OUT Reverse Leakage Current Capacitive Load Requirement Start-Up Time Response Start-Up overshoot /SHDN Input Current /SHDN Input Level
IFB
VDO ILOAD=30mA VIN=6 VIN=unconnected, OUT set to 5V
I/SHDN /SHDN=0 or 15V VIH VIL
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 3
AT1202
Preliminary Product Information High Voltage Linear Regulator Typical Application Circuit
Fig1. AT1202 Typical Application Circuit
Fig2. Negatve Power supply
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 4
AT1202
Preliminary Product Information High Voltage Linear Regulator Typical Characteristics (COUT=10F)
Fig1a. VOUT=5V Start-Up Response (CH1:/SHDN CH2:VOUT/30mA VIN=10V)
Fig1b. VOUT=5V Transient (CH1:VOUT CH2:IOUT )
Fig 2a. VOUT=15V Start-Up Response Fig2b. VOUT=15V Transient (CH1:/SHDN CH2:VOUT/30mA VIN=20V) (CH1:VOUT CH2:IOUT )
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 5
AT1202
Preliminary Product Information High Voltage Linear Regulator
Small Outline SOT-25
SYMBOL A A1 A2 b C D E E1 L e e1 r
INCHES MIN 0.035 0.000 0.035 0.010 0.003 0.110 0.102 0.059 0.014 00 0.037ref 0.075ref MAX 0.057 0.006 0.051 0.020 0.008 0.122 0.118 0.069 0.022 100
MILLIMETERS MIN MAX 0.90 1.45 0.00 0.15 0.90 1.30 0.25 0.50 0.08 0.20 2.80 3.10 2.60 3.00 1.50 1.75 0.35 0.55 0.95ref 1.90ref 00 100
NOTES -
-
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 6
AT1202
Preliminary Product Information High Voltage Linear Regulator Reflow Profiles
Profile Feature
Sn-Pb Eutectic Assembly Large Body Small Body Pkg. thickness Pkg. thickness <2.5mm or Pkg. 2.5mm or Pkg. 3 volume 350mm3 volume <350mm 3C/second max.
Average ramp-up rate (TL to TP) Preheat -Temperature Min(Tsmin) -Temperature Max (Tsmax) -Time (min to max)(ts) Tsmax to TL -Ramp-up Rate Time maintained above: -Temperature (TL) -Time (tL) Peak Temperature(TP) Time within 5C of actual Peak Temperature (tP) Ramp-down Rate Time 25C to Peak Temperature
Pb-Free Assembly Large Body Small Body Pkg. thickness Pkg. thickness 2.5mm or Pkg. 2.5mm or Pkg. volume 350mm3 volume 350mm3 3C/second max.
100C 150C 60-120 seconds
150C 200C 60-180 seconds 3C/second max.
183C 60-150 seconds 225+0/-5C 10-30 seconds 240+0/-5C 10-30 seconds
217C 60-150 seconds 245+0/-5C 10-30 seconds 250+0/-5C 20-40 seconds
6C/second max. 6 minutes max.
3C/second max. 8 minutes max.
*All temperatures refer to topside of the package, measured on the package body surface.
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 7

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