ZSPM4012KIT ZMDI, ZSPM4012KIT Datasheet - Page 18

• Manufacturer Part Number: ZSPM4012KIT
• Description: Power Management IC Development Tools DC-DC Converter Kit
• Manufacturer: ZMDI
• Type: DC/DC Converters, Regulators & Controllersr

Specifications of ZSPM4012KIT

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: ZSPM4012
• Input Voltage: 6 V to 24 V
• Output Voltage: 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V, 0.9 V to 5 V
• Output Current: 2 A

For adjustable-mode versions, this should be connected to the external resistor divider. To choose the resistors,
use the following equation:
V
The input to the FB pin is high impedance, and input current should be less than 100nA. As a result, good layout
practices are required for the feedback resistors and feedback traces. When using the adjustable version, the
feedback trace should be kept as short and narrow as possible to reduce stray capacitance and the injection of
noise.
5.3.4.
This is the switching node of the regulator. It should be connected directly to the 4.7uH inductor with a wide, short
trace and to one end of the Bootstrap capacitor. It is switching between VCC and PGND at the switching
frequency.
5.3.5.
This ground is used for the majority of the device including the analog reference, control loop, and other circuits.
5.3.6.
This is a separate ground connection used for the low-side synchronous switch to isolate switching noise from the
rest of the device.
5.3.7.
This is the input terminal to activate the regulator. The input threshold is TTL/CMOS compatible. It also has an
internal pull-up to ensure a stable state if the pin is disconnected.
5.3.8.
This is an open drain, active low output. The switched mode output voltage is monitored and the PG line will
remain low until the output voltage reaches the V
output voltage is above the desired threshold, an internal delay timer is activated and the PG line is de-asserted
(to high) once this delay timer expires. In the event the output voltage decreases below V
be asserted low and remain low until the output rises above V
for the circuit schematic for the PG signal.
6
Product Sales Code
Explanation of Ordering Codes:
ZSPM2012AA1Wxx:
ZSPM2012AA1Rxx:
ZSPM4012AA1W00
ZSPM4012AA1W15
ZSPM2012AA1W18
ZSPM4012AA1W25
ZSPM4012AA1W33
ZSPM4012AA1W50
ZSPM4012KIT
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Data Sheet
January 23, 2012
ZSPM4012
High Efficiency 2A Synchronous Buck Converter
= 0.9 (1 + R
Ordering Information
Switching Output, VSW (Pins #12,13)
Ground, GND (Pin #4)
Power Ground, PGND (Pins #14,15)
Enable, High-Voltage, EN (Pin #9)
PG Output, PG (Pin #8)
TOP
© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
/R
BOT
Description
ZSPM4012, 2A synchronous buck converter: adjustable output, 0.9 to 5V
ZSPM4012, 2A synchronous buck converter: fixed output, 1.5V
ZSPM4012, 2A synchronous buck converter: fixed output, 1.8V
ZSPM4012, 2A synchronous buck converter: fixed output, 2.5V
ZSPM4012, 2A synchronous buck converter: fixed output, 3.3V
ZSPM4012, 2A synchronous buck converter: fixed output, 5.0V
ZSPM4012KIT, evaluation kit for 2A synchronous buck converter
“W” = 7” reel with 1000 ICs
“R” = 13” reel with 3300 ICs
)
OUT-UV
threshold. Once the internal comparator detects that the
OUT-UV
and the delay timer times out. See Figure 2
OUT-UV
Package
16 Lead 3x3 QFN
16 Lead 3x3 QFN
16 Lead 3x3 QFN
16 Lead 3x3 QFN
16 Lead 3x3 QFN
16 Lead 3x3 QFN
, the PG line will
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