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AT1201
Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO Features
* Output voltage 2.5/2.7/2.8/3.0/3.3/4.5/5.0V * Output current 150mA * Output noise voltage 35Vrmstyp. * No-load input current 90A typ. * I/O voltage difference 0.1V typ.(Io=50mA) * Ripple rejection ratio 70dB typ. * Bulit-in On/Off control
General Description
The AT1201 is a low-noise, low-dropout, low-quiescent-current linear regulator designed for battery-powered applications. The output voltage precision is within 2and output currents of up to 150mAthe input/output voltage difference at 50mA is only 0.1V.
Applications
* Cordless phones * Portable phones, PHS * Other 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 2/9/2006 REV:1.1 Email: service@aimtron.com.tw 1
AT1201
Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO Pin Assignment
Ordering Information
Part number AT1201-X AT1201-X_Green AT1201-XR AT1201-XR_Green Package SOT-25 SOT-25, Green SOT-25 SOT-25, Green Marking Date Code ,Date Code with one bottom line Date Code ,Date Code with one bottom line 50:5.0V
:Output Voltage 25::2.5V 27::2.7V 28:2.8V 30:3.0V 33:3.3V 45::4.5V : A:5V B:3.3V C:3.0V D:2.8V E:2.7V F:4.5V G:2.5V : Date Code *For more marking information, contact our sales representative directly
Absolute Maximum Ratings
Item Symbol Ratings Units
Storage temperature Operating temperature Power supply voltage Output current Power consumption
TSTG TOPR VCC IOUT Pd
-40125 -3085 -0.314 200 150
V mA mW
Recommended Operating Condition
Item Symbol Ratings Units
Operating temperature Output current Operating voltage
TOP IOP VOP
-2075 0150 3.410
mA V
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 2/9/2006 REV:1.1 Email: service@aimtron.com.tw 2
AT1201
Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO
Electrical Characteristics (Except where noted otherwise, Ta25)
Item Symbol Measurement conditions Min.
VOUT -2
Typ.
Max.
VOUT +2
Units
Output voltage
VO
VIN=VO+1V, IO=30mA
VOUT 90 0.1 10 30 100 70
35 (3V item)
V A A V mV mV ppm/ dB Vrms
No-load consumption current Iccq1 VIN=VO+1V, IO=0mA Input current while off Iccq2 VIN=VO+1V, VCONT=0V I/O voltage difference Vd min VIN=VO-0.2V, IO=50mA V1 Input fluctuations VIN=VO+1V~10V, IO=50mA V2 Load fluctuation VIN=VO+1V, IO=0~100mA Tj=-20~+75,VIN= VO+1V, Output voltage temperature VO/T coefficient IO=30mA VIN=VO+1V, IO=30mA, 50 Ripple rejection rate RR VRIPPLE=1VP-P,f=120Hz VIN=VO+1V, f=20~80kHz, Output noise voltage Vn IO=30mA, Cn=0.01F CONT pin current while on ICONT VCONT=1.6V CONT pin high level CONT pin low level H L 1.6 -0.3
180 0.1 0.2 20 60
5
15
VIN +0.3V
A V V
0.4
Measuring Circuit
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 2/9/2006 REV:1.1 Email: service@aimtron.com.tw 3
AT1201
Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO
Characteristics (33X,33XR Series ) *Consumption current (VIN=4.3V)
*Output fluctuation (IO=30mA)
*I/O voltage difference (VIN=3.1V)
*Load fluctuation (VIN=4.3V)
*Current limit (VIN=4.3V)
*No-load input current
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 2/9/2006 REV:1.1 Email: service@aimtron.com.tw 4
AT1201
Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO
*Load step (1mA-200mA)
*Chip enable transient response
*Current limit response
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 2/9/2006 REV:1.1 Email: service@aimtron.com.tw 5
AT1201
Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO
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 2/9/2006 REV:1.1 Email: service@aimtron.com.tw 6
AT1201
Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO 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 2/9/2006 REV:1.1 Email: service@aimtron.com.tw 7

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