Diodes AP3015/A - Manual

MICRO POWER STEP-UP DC-DC CONVERTER AP3015/A
1
May 2010 Rev. 1. 4 BCD Semiconductor Manufacturing Limited
Data Sheet
General Description
The AP3015/A are Pulse Frequency Modulation
(PFM) DC/DC converters. These two devices are func-
tionally equivalent except the switching current limit.
The AP3015 is designed for higher power systems
with 350mA current limit, and the AP3015A is for
lower power systems with 100mA current limit.
The AP3015/A feature a wide input voltage. The oper-
ation voltage is ranged from 1.2Vto 12V (1V to 12V
for AP3015A). A current limited, fixed off-time con-
trol scheme conserves operating current, resulting in
high efficiency over a broad range of load current.
They also feature low quiescent current, switching cur-
rent limiting, low temperature coefficient, etc.
Fewer tiny external components are required in the
applications to save space and lower cost.
Furthermore, to ease its use in differnet systems, a dis-
able terminal is designed to turn on or turn off the chip.
The AP3015/A are available in SOT-23-5 package.
Features
· Low Quiescent Current
In Active Mode (Not Switching): 17 µ A Typical
In Shutdown Mode: <1 µ A
· Low Operating V
IN
1.2V Typical for AP3015
1.0V Typical for AP3015A
· Low V
CESAT
Switch
200mV Typical at 300mA for AP3015
70mV Typical at 70mA for AP3015A
· High Output Voltage: up to 34V
· Fixed Off-Time Control
· Switching Current Limiting
350mA Typical for AP3015
100mA Typical for AP3015A
· Operating Temperature Range: -40 o C to 85 o C
Applications
· MP3, MP4
· Battery Power Supply System
· LCD/OLED Bias Supply
· Handheld Device
· Portable Communication Device
Figure 1. Package Type of AP3015/A
SOT-23-5