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AN8018SA Datasheet(PDF) 1 Page - Panasonic Semiconductor

Part No. AN8018SA
Description  1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC
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Maker  PANASONIC [Panasonic Semiconductor]
Homepage  http://www.panasonic.com/industrial/
Logo PANASONIC - Panasonic Semiconductor

AN8018SA Datasheet(HTML) 1 Page - Panasonic Semiconductor

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Voltage Regulators
1
AN8018SA
1.8-volt 2-channel step-up, step-down,
or inverting DC-DC converter control IC
s Overview
The AN8018SA is a two-channel PWM DC-DC con-
verter control IC that features low-voltage operation.
This IC can obtain the step-up, step-down and invert-
ing voltages with a small number of external components.
The minimum operating voltage is as low as 1.8 V so
that it can operate with two dry batteries. In addition,
since it uses the 16-pin surface mounting type package
with 0.65 mm pitch, it is suitable for miniaturized highly
efficient potable power supply.
s Features
• Wide operating supply voltage range (1.8 V to 14 V)
• Incorporating a high precision reference voltage circuit
(allowance:
± 2%)
• Control in a wide output frequency range is possible
(20 kHz to 1 MHz).
• Built-in wideband error amplifier (single gain bandwidth
10 MHz typical)
• Built-in timer latch short-circuit protection circuit
(charge current 1.1
µA typical)
• Incorporating the under-voltage lock-out circuit (U.V.L.O.)
(circuit operation-starting voltage 1.67 V typical)
• Dead-time is variable.
• Flatness of switching current can be obtained by staggering the turn-on timing of each channel.
• Built-in unlatch function
When DT1 pin is low level, or DT2 pin is high level, independent turn-off is possible.
• Incorporating a on/off control function
(active-high control input, standby mode current: 5
µA maximum)
• Parallel operation is possible.
• Output block
• Totem pole 1 output
• Output source-current:
−50 mA maximum (Constant current output with a less supply voltage fluctuation is
possible by connecting an external resistor to pin 11)
• Output sink-current:
+80 mA maximum
• Open-collector 1 output
• Output current: 50 mA maximum
s Applications
• LCD displays, digital still cameras, and PDAs
Unit: mm
SSOP016-P-0225A
18
0.5
±0.2
(1.0)
0
° to 10°
16
5.0
±0.2
9
0.65
(0.225)
0.22
+0.10
− 0.05
Seating plane


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