at1736 Aimtron Technology, at1736 Datasheet - Page 5

• Manufacturer Part Number: at1736
• Description: Lcd Panel Power Supplies With High-current Operational Amplifiers
• Manufacturer: Aimtron Technology

IN Operating Supply Range
IN Undervoltage-Lockout Threshold
IN Quiescent Current
Duration to Trigger Fault condition
REF Output Voltage
Step-Up Converter Section
Output Voltage Range
Operating Frequency
Oscillator Maximum Duty Cycle
Feedback Regulation voltage
FB Input Bias Current
FB Fault Trip Level
FB Load Regulation
FB Line Regulation
FB Transconductance
FB Voltage Gain
LX Switch On-Resistance
LX Leakage Current
LX Current Limit
Current-Sense Transconductance
Soft-Start Period t
Soft-Start Step Size
Operational Amplifiers Section
VDDOP Supply Operating Range
Electrical Characteristics
(Test circuit is shown as Typical Application Circuit, unless otherwise noted. V
PGND = AGND = BGND = 0, I
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
10/19/2007 REV:0.5
Parameter
SS
Fax: [phone]
REF
= 25µA, Ta= 0℃ to +85℃. Typical values are at Ta=+25℃.)
V
Hysteresis
V
LX not switching
V
V
-10µA < I
VIN = 2.6 to 5.5V
No load, Ta = +25℃
V
V
0 mA < I
transient only
2.6V < Vin < 5.5V
∆I
FB to COMP
V
V
IN
FB
FB
FBN
FB
FB
LX
IN
COMP
= 3.3V
rising
= V
= 1.1V, V
= 1.4V
falling
= 17V
= 0V, LX switching
= 1.4V
FBP
LX
REF
= 1.4V, V
< full load,
Condition
< 50µA,
FBP
5
High-Current Operational Amplifiers
= 1.4V,
FBN
Preliminary Product Information
LCD Panel Power Supplies with
= 0V,
WWW:
Email:
1.210
1.210
Min.
1020
0.90
V
2.6
2.3
-50
2.5
3.0
4.5
84
75
http://www.aimtron.com.tw
IN
[e-mail]
IN
= 3V, V
Values
I
1.233
1.233
±0.04
LIM
1200
Typ.
1.00
0.02
-1.6
150
160
600
160
2.5
0.8
3.0
3.8
55
87
14
6
1
/ 8
VDDOP
AT1736
±0.15
Max.
1.256
1.256
1380
1.10
280
250
5.5
2.7
1.1
3.5
11
16
90
50
40
16
5
= 8V,
Unit
%/V
V/V
kHz
mV
mA
mΩ
nA
µA
ms
µS
ms
%
%
V
V
V
V
V
V
A
A
V
S