DC1459A Linear Technology, DC1459A Datasheet
DC1459A
Manufacturer Part Number
DC1459A
Description
BOARD EVALUATION FOR LTC3588
Manufacturer
Linear Technology
Datasheet
1.DC1459A.pdf
(6 pages)
Specifications of DC1459A
Main Purpose
Power Management, Renewable Energy
Embedded
No
Utilized Ic / Part
LTC3588
Primary Attributes
Pin Selectable Voltage, 1.8V, 2.5V, 3.3V, 3.6V
Secondary Attributes
Up to 100mA Output
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DESCRIPTION
Demonstration Circuit 1459A is an energy harvesting
power supply featuring the LTC3588-1. The LTC3588-
1 integrates a low-loss full-wave bridge with a high
efficiency buck converter to form a complete energy
harvesting solution optimized for high output imped-
ance energy sources such as piezoelectric transduc-
ers. An ultralow quiescent current undervoltage lock-
out mode with a wide hysteresis window allows
charge to accumulate on an input capacitor until the
buck converter can efficiently transfer a portion of the
stored charge to the output. Four output voltages are
pin selectable with up to 100mA of continuous output
OPERATING PRINCIPLE
sheet for its operating principle.
The LTC3588-1 is an ultralow quiescent current
power supply designed specifically for energy har-
vesting and/or low current step-down applications.
The part is designed to interface directly to a piezo-
electric or alternative A/C energy source, rectify and
store the harvested energy on an external capacitor,
bleed off any excess energy via an internal shunt
TABLE 1
PERFORMANCE SUMMARY
SYMBOL
VIN
VOUT 1.8V Output Voltage Range
VOUT 2.5V Output Voltage Range
VOUT 3.3V Output Voltage Range
VOUT 3.6V Output Voltage Range
Refer to the block diagram within the LTC3588-1 data
Input Voltage Range
PARAMETER
CONDITIONS
D0 = 0, D1=0
D0 = 1, D1=0
D0 = 0, D1=1
D0 = 1, D1=1
Specifications are at T
current. A power good comparator produces a logic
high referenced to VOUT on the PGOOD pin when the
converter reaches the programmed VOUT, signaling
that the output is in regulation.
The LTC3588EMSE-1 is available in a 10-lead (3mm ×
2mm) MSE surface mount package with exposed pad.
L
trademarks of Linear Technology Corporation. Adaptive Power, C-Load, DirectSense, Easy
Drive, FilterCAD, Hot Swap, LinearView, μModule, Micropower SwitcherCAD, Multimode
Dimming, No Latency ΔΣ, No Latency Delta-Sigma, No R
PowerPath, PowerSOT, SmartStart, SoftSpan, Stage Shedding, SwitcherCAD, ThinSOT,
UltraFast and VLDO are trademarks of Linear Technology Corporation. Other product names
may be trademarks of the companies that manufacture the products.
regulator, and maintain a regulated output voltage by
means of a nano-power high efficiency synchronous
buck regulator.
The LTC3588-1 has an internal full-wave bridge recti-
fier accessible via PZ1 and PZ2 that rectifies AC in-
puts such as those from a piezoelectric element. The
rectified output is stored on a capacitor at the V
and can be used as an energy reservoir for the buck
converter. The bridge is capable of carrying up to
50mA.
, LTC, LTM, LT, Burst Mode, OPTI-LOOP, Over-The-Top and PolyPhase are registered
Harvesting Power Supply
A
= 25°C
DEMO CIRCUIT 1459A
Piezoelectric Energy
QUICK START GUIDE
LTC3588EMSE-1
LTC3588EMSE-1
2.425
3.201
3.491
MIN
1.71
SENSE
to
to
to
to
, Operational Filter, PanelProtect,
2.575
3.399
3.708
MAX
18.0
1.89
IN
UNITS
pin
1
V
V
V
V
V
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DC1459A Summary of contents
Page 1
... Drive, FilterCAD, Hot Swap, LinearView, μModule, Micropower SwitcherCAD, Multimode Dimming, No Latency ΔΣ, No Latency Delta-Sigma PowerPath, PowerSOT, SmartStart, SoftSpan, Stage Shedding, SwitcherCAD, ThinSOT, UltraFast and VLDO are trademarks of Linear Technology Corporation. Other product names may be trademarks of the companies that manufacture the products. Specifications are 25° ...
Page 2
... Figure 1 for the proper measurement and equip- ment setup. Follow the procedure below: 1. Before connecting PS1 to the DC1459A, PS1 must have its current limit set to 50mA. For most power supplies with a current limit ad- justment feature the procedure to set the cur- rent limit is as follows ...
Page 3
If the cur- rent remains less than 5mA, increase PS1 un- til output turns on. Verify input voltage, VIN, UVLO of 3.77V to 4.30V. 4. Increase PS1 to 12V and set LOAD1 to 100mA. Verify ...
Page 4
Figure 1. Proper Measurement Equipment Setup LTC3588EMSE-1 ...
Page 5
Figure 2: Schematic diagram LTC3588EMSE-1 5 ...
Page 6
LTC3588EMSE-1 Bill of Materials ...