AT1305 Datasheet, PDF (4/13 Pages) Aimtron Technology – PFM Step-Up DC/DC Converter with LDO

AT1305
Preliminary Product Information
PFM Step-Up DC/DC Converter with LDO
Maximum Duty
D_MAX V_OUT =2.85V
-
85
-
%
LX ON Resistance
R_LX N-Channel
-
LX Leakage Current
I_L
V_LX =1.5V,
EN=0V,/ENPB=VDD
-
Current Limit Setting
I_LX
V_DD =2.85V
-
LDO Current Limit
I_LDO V_DD =3.2V
-
OUT ON Resistance
R_OUT V_DD =2.85V, I_OUT=100mA
-
LDO enable threshold
V_DD1
OUT regulated to
1.8/3.0/3.3V
-
LDO Line Regulation
V_in=4.5V~5.5V,
I_OUT=100mA
-
LDO Load Regulation
V_out=3.3V, I_OUT=10~100mA
-
PG Threshold
V_DD2
AT1305,AT1305A,
falling
VDD
-
AT1305B, VDD falling
-
0.3
-
Ω
1 μA
1.5
2
A
350
-
mA
0.5
-
Ω
4.0
-
V
1
-
%
1
-
%
2.7
-
V
1.65
-
V
PG sink current
I_PG
I_PG=1mA
-
0.4
-
V
PG Leakage current
I_LPG
V_DD =3V
-
-
1 μA
V_IH
EN,/ENPB Trip Level
V_IL
0.8
-
-
V
-
-
0.5 V
Note 1 : Once the output is in regulation , the AT1305/A/B operate down to a 0.7V input voltage.
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone] Fax: [phone]
WWW: http://www.aimtron.com.tw
2/8/2006 REV:1.1
Email: [e-mail]
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