EV1340QI-E Enpirion, EV1340QI-E Datasheet

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EV1340QI-E

Manufacturer Part Number
EV1340QI-E
Description
Power Management IC Development Tools EV1340Q1 Eval Board
Manufacturer
Enpirion
Type
DC/DC Converters, Regulators & Controllersr
Datasheet

Specifications of EV1340QI-E

Rohs
yes
Product
Evaluation Board
Tool Is For Evaluation Of
EV1340QI
Input Voltage
3.07 V to 3.53 V
Description/function
Features a customer programmable output voltage by means of a resistor divider, this evaluation board, as shipped is populated with one option for VOUT
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Output Current
5 A
For Use With
EV1340QI

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Part Number:
EV1340QI-E
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ALTERA
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Introduction
Thank you for choosing Enpirion, the source for Ultra small foot print power
converter products. This user guide is applicable to evaluation boards with part
number 05043 Rev A shown on the back side of the PCB. Along with this
document you will also need the latest device datasheet.
• The EV1340QI features integrated inductor, power MOSFETS, Controller,
• The EV1340QI features a customer programmable output voltage by
• The EV1340QI includes the bulk of the compensation network internally.
• Jumpers or test points are provided for ease of logical 1/0 programming of
• The board comes with input decoupling and reverse polarity protection to
Converter with Integrated Inductor
bulk of the compensation Network, and protection circuitry against system
faults. This level of integration delivers a substantial reduction in footprint
and part count over competing solutions. The evaluation board is
optimized for ease of use.
means of a resistor divider. This evaluation board, as shipped is populated
with one option for V
VDDQ.
However, an external phase-lead (zero) capacitor and resistor is required
in addition to two resistor dividers to set the output voltage. This network is
shown in Figure -1. Appropriate component values allow for optimum
compensation for a given VDDQ voltage and choice of loop bandwidth.
The values in Figure 1 are as populated on the eval board, and have been
optimized for VDDQ = 1.5V. The circuit in Figure 1 will be stable for lower
values of VDDQ as well. For VDDQ higher than 1.5V, please see the
datasheet to calculate the resistor divider and compensation values.
the following signals:
ENABLE may also be controlled using an external switching source by
removing the jumper and applying the enable signal to the middle pin and
ground.
guard the device against common setup mishaps.
Enpirion EV1340QI 5A DC/DC
o ENABLE (ENA)
o EN_PB input
Evaluation Board
OUT
. It is programmed so that V
Page 1 of 7
EV1340QI Evaluation Board User Guide
OUT
will be half of
March 2012

Related parts for EV1340QI-E

EV1340QI-E Summary of contents

Page 1

... V OUT VDDQ. • The EV1340QI includes the bulk of the compensation network internally. However, an external phase-lead (zero) capacitor and resistor is required in addition to two resistor dividers to set the output voltage. This network is shown in Figure -1. Appropriate component values allow for optimum compensation for a given VDDQ voltage and choice of loop bandwidth ...

Page 2

... When the jumper is between the left and middle pins, the signal pin is connected to AVIN or logic High. WARNING: complete steps 1 through 6 before applying power to the EV1340QI evaluation board. STEP 1: Set the “ENA” jumper to the Disable Position. See Figure 2 above. ...

Page 3

... CAUTION: Except ENA, no other jumpers can be changed while the EV1340QI is powered on. Doing so could result in damage to the part. STEP 4: Connect the VDDQ Power Supply to the input power connectors, VDDQ (J13) and GND (J7) as indicated in Figure 4 and set the power supply to the desired voltage (≤1.8V). For VDDQ more than 1.5V, the loop compensation values will have to be adjusted according to the datasheet ...

Page 4

... Figure 4: Evaluation Board Top Side and Bottom Side (viewed from the top) Assembly Layers. EV1340QI Evaluation Board User Guide Page March 2012 ...

Page 5

... D2 TP24 1206 PGND TP23 TP22 PGND TP25 VOUT BF_IN TP27 SCH 05042 PCB 05043 Page EV1340QI Evaluation Board User Guide March 2012 Rev ision Description p1 Preliminary Release p2 J1, J2 were SMT. Added TP30-31. p3 Added TP32-35, D4 ENA EN_PB R14 AVIN 0402 TP10 ...

Page 6

... Please refer to the BOM section for the value of input caps and output caps used on this evaluation board. Capacitors must be X5R or X7R dielectric formulations to ensure adequate capacitance over operating voltage and temperature ranges. EV1340QI Evaluation Board User Guide Page March 2012 ...

Page 7

... Enpirion products are not authorized for use in nuclear control systems, as critical components in life support systems or equipment used in hazardous environment without the express written authority from Enpirion. EV1340QI Evaluation Board User Guide Description Page March 2012 ...

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