ADP1610(Rev0) データシートの表示（PDF） - Analog Devices
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ADP1610 Datasheet PDF : 16 Pages
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1.2 MHz DC-DC Step-Up Switching Converter
ADP1610
FEATURES
Fully integrated 1.2 A , 0.2 Ω, power switch
Pin-selectable 700 kHz or 1.2 MHz PWM frequency
92% efficiency
Adjustable output voltage up to 12 V
3% output regulation accuracy
Adjustable soft start
Input undervoltage lockout
MSOP 8-lead package
APPLICATIONS
TFT LC bias supplies
Portable applications
Industrial/instrumentation equipment
GENERAL DESCRIPTION
The ADP1610 is a dc-to-dc step-up switching converter with an
integrated 1.2 A, 0.2 Ω power switch capable of providing an
output voltage as high as 12 V. With a package height of less that
1.1 mm, the ADP1610 is optimal for space-constrained
applications such as portable devices or thin film transistor
(TFT) liquid crystal displays (LCDs).
The ADP1610 operates in pulse-width modulation (PWM)
current mode with up to 92% efficiency. Adjustable soft start
prevents inrush currents at startup. The pin-selectable switching
frequency and PWM current-mode architecture allow excellent
transient response, easy noise filtering, and the use of small,
cost-saving external inductors and capacitors.
The ADP1610 is offered in the Pb-free 8-lead MSOP and
operates over the temperature range of −40°C to +85°C.
FB 2
RT 7
FUNCTIONAL BLOCK DIAGRAM
REF
COMP
1
ERROR
AMP
gm
IN
6
BIAS
ADP1610
RAMP
GEN
OSC
F/F
RQ
S
COMPARATOR
DRIVER
5 SW
SS 8
SD 3
SOFT START
Figure 1.
CURRENT
SENSE
AMPLIFIER
4
GND
Rev. 0
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