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 35μVrmstyp. • No-load input current 90μA 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 ±2﹪and output currents of up to 150mA;the 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
-40〜+125 -30〜+85 -0.3〜+14 200 150
℃ ℃ V mA mW
Recommended Operating Condition
Item Symbol Ratings Units
Operating temperature Output current Operating voltage
TOP IOP VOP
-20〜+75 0〜150 3.4〜10
℃ 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, Ta=25℃)
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 μA μA V mV mV ppm/℃ dB μVrms
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 ΔV1 Input fluctuations VIN=VO+1V~10V, IO=50mA ΔV2 Load fluctuation VIN=VO+1V, IO=0~100mA Tj=-20~+75℃,VIN= VO+1V, Output voltage temperature ΔVO/ΔT 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=0.01μF 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
μA 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