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ADP2109CB-1.8EVALZ

Description
Power management IC development tool ADP2109CB-1.8 Eval
CategoryEmbedded solution    Engineering tools    Power management IC development tools   
File Size1MB,17 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

ADP2109CB-1.8EVALZ Overview

Power management IC development tool ADP2109CB-1.8 Eval

ADP2109CB-1.8EVALZ Parametric

Parameter NameAttribute value
MakerADI
Product CategoryPower Management IC Development Tools
productEvaluation Boards
typeVoltage Regulators - Switching Regulators
Tools for assessmentADP2109
Input voltage2.3 V to 5.5 V
The output voltage1.8 V
EncapsulationBulk
Description/FunctionEvaluation Board for ADP2109 1.8 V
Output current600 mA
seriesADP2109
used forADP2109
Maximum operating temperature+ 125 C
Minimum operating temperature- 40 C
Factory packaging quantity1
unit weight135.624 g
Data Sheet
FEATURES
Peak efficiency: 95%
Discharge switch function
Fixed frequency operation: 3 MHz
Typical quiescent current: 18 μA
Maximum load current: 600 mA
Input voltage: 2.3 V to 5.5 V
Uses tiny multilayer inductors and capacitors
Current mode architecture for fast load and line transient
response
100% duty-cycle low dropout mode
Internal synchronous rectifier
Internal compensation
Internal soft start
Current overload protection
Thermal shutdown protection
Shutdown supply current: 0.2 μA
5-ball WLCSP
Supported by ADIsimPower™ design tool
Compact 600 mA, 3 MHz, Step-Down
Converter with Output Discharge
ADP2109
GENERAL DESCRIPTION
The ADP2109 is a high efficiency, low quiescent current step-
down dc-to-dc converter with an internal discharge switch that
allows automatic discharge of the output capacitor in an ultra-
small 5-ball WLCSP package.
The total solution requires only three tiny external components.
It uses a proprietary high speed current mode and constant
frequency pulse-width modulation (PWM) control scheme for
excellent stability, and transient response. To ensure the longest
battery life in portable applications, the ADP2109 has a power
save mode that reduces the switching frequency under light
load conditions.
The ADP2109 runs on input voltages of 2.3 V to 5.5 V, which
allow for single lithium or lithium polymer cell, multiple alkaline
or NiMH cells, PCMCIA, USB, and other standard power
sources. The maximum load current of 600 mA is achievable
across the input voltage range.
The ADP2109 is available in fixed output voltages of 1.8 V, 1.5 V,
1.2 V, and 1.0 V. All versions include an internal power switch
and synchronous rectifier for minimal external part count and
high efficiency. The ADP2109 has an internal soft start and internal
compensation. During logic-controlled shutdown, the input is
disconnected from the output and the ADP2109 draws less than
1 μA from the input source.
Other key features include undervoltage lockout to prevent deep
battery discharge and soft start to prevent input current overshoot
at startup. The ADP2109 is available in a 5-ball WLCSP.
A similar converter, the ADP2108, provides the same features
and operations as the ADP2109 without the discharge switch
and is available in both WLCSP and TSOT packages with
additional output voltages.
APPLICATIONS
PDAs and palmtop computers
Wireless handsets
Digital audio, portable media players
Digital cameras, GPS navigation units
B
O
Rev. B
SO
2.3V TO 5.5V
VIN
4.7µF
SW
TYPICAL APPLICATIONS CIRCUIT
1µH
1.0V TO 1.8V
10µF
OFF
GND
Figure 1.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2009–2012 Analog Devices, Inc. All rights reserved.
07964-001
LE
ADP2109
ON
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