AAT1230 Datasheet, PDF (2/21 Pages) Advanced Analogic Technologies – 18V 100mA Step-Up Converter

AAT1230
18V 100mA Step-Up Converter
Pin Descriptions
Pin #
TSOPJW-12 TDFN34-16
1
15, 16
2
14
3
13
4
12
5
11
6, 7
9, 10
8
6, 7, 8
9
5
10
4
11
3
12
1, 2
N/A
EP
Symbol
VP
EN/SET
SEL
VIN
N/C
SW
PGND
GND
FB2
FB1
LIN
Function
Input power pin; connected to the source of the P-channel MOSFET.
Connect to the input capacitor(s).
IC active high enable pin. Alternately, input pin for S²Cwire control uti-
lizing FB2 reference.
Logic high selects FB1 high output reference; logic low selects FB2 low
output reference. Pull low for S²Cwire control.
Input voltage for the converter. Connect this pin directly to the VP pin.
No connection.
Boost converter switching node. Connect the power inductor between
this pin and LIN pin.
Power ground for the boost converter; connected to the source of the
N-channel MOSFET. Connect to the input and output capacitor return.
Ground pin.
Feedback pin for low output voltage set point. Pin set to 0.6V when
SEL is low and disabled when SEL is high. Voltage is set from 0.6V to
1.2V with S²Cwire control.
Feedback pin for high output voltage set point. Pin set to 1.2V when
SEL is high and disabled when SEL is low. Disabled with S²Cwire
control.
Switched power input. Connected to the power inductor.
Exposed paddle (bottom). Tied to SW pins. May be connected to SW
pins or left floating.
Pin Configuration
TSOPJW-12
(Top View)
VP ¹
EN/SET ²
SEL ³
VIN ⁴
N/C ⁵
SW ⁶
12 _LIN
11 _FB1
10 _FB2
9 _GND
8 _PGND
7 _SW
TDFN34-16
(Top View)
LIN ¹
LIN ²
FB1 ³
FB2 ⁴
GND ⁵
PGND ⁶
PGND ⁷
PGND ⁸
16 _VP
15 _VP
14 _EN/SET
13 _SEL
12 _VIN
11 _N/C
10 _SW
9 _SW
2
1230.2006.03.1.0