at1736 Aimtron Technology, at1736 Datasheet - Page 16

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

Output Voltages Setting
The output voltages of step-up converter and linear regulators are set by each resistive
voltage-divider as the Typical Application Circuit shown.
The AT1736 applies a 1.233V feedback reference voltage at FBL pin of linear
regulator, and the output voltage setting is according to the following equation:
The feedback reference voltage of positive charge-pump V
output voltage is set by the following equation:
The feedback reference voltage of negative charge-pump V
the reference voltage (V
following equation:
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10/19/2007 REV:0.5
V
V
V
VMAIN
VP
VGOFF
=
. 1
=
233
=
. 0
. 1
25
233
×
⎛
⎜
⎝
1
−
×
+
⎛
⎜
⎝
⎛
⎜
⎝
. 0
R
R
1
983
6
5
+
⎞
⎟
⎠
R
R
R
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7
×
2
1
(V)
REF
R
⎞
⎟
⎠
8
) is typical 1.233V. So the output voltage is set by the
(V)
⎞
⎟
⎠
(V)
16
High-Current Operational Amplifiers
Preliminary Product Information
LCD Panel Power Supplies with
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FBP
FBN
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is typical 1.233V. The
is typical 250mV, and
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AT1736