AN8017SA Datasheet, PDF (1/25 Pages) Panasonic Semiconductor – 1.8-volt 2-channel step-up DC-DC converter control IC

Voltage Regulators
AN8017SA
1.8-volt 2-channel step-up DC-DC converter control IC
s Overview
The AN8017SA is a two-channel PWM DC-DC con-
verter control IC that features low-voltage operation.
This IC can obtain the step-up voltage 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 a miniaturized highly
efficient potable power supply.
5.0±0.2
16
9
1
8
Unit: mm
(1.0)
0° to 10°
0.5±0.2
s Features
• Wide operating supply voltage range (1.8 V to 14 V)
• Incorporating a high precision reference voltage circuit
(0.225)
0.65
0.22
+0.10
− 0.05
Seating plane
(allowance: ± 2%)
• Control in a wide output frequency range is possible
SSOP016-P-0225A
(20 kHz to 1 MHz)
• Built-in wideband error amplifier
(single gain bandwidth: 10 MHz typical)
• A built-in timer latch short-circuit protection circuit
(charge current: 1.1 µA typical)
• Incorporating an 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 an on/off control function
(active-high control input, standby mode current: 1 µA maximum)
• Parallel operation is possible
• Totem pole 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 6 and pin 11)
• Output sink-current: +80 mA maximun
s Applications
• LCD displays, digital still cameras, and PDAs
1