Diodes ZXRE160 - Manual

ZXRE160
Document number: DS35688 Rev. 2 - 2
1 of 15
www.diodes.com
June 2012
© Diodes Incorporated
ZXRE160
NEW PROD
UC
T
A Product Line of
Diodes Incorporated
0.6V ENHANCED ADJUSTABLE PRECISION SHUNT REGULATOR
Description
The ZXRE160 is a 5-terminal adjustable shunt regulator offering
excellent temperature stability and output handling capability. This
device offers an enhancement to the ZXRE060 part for use in a
comparator mode applications.
In shunt regulator mode, the ZXRE160 simplifies the design of
isolated low voltage DC-DC regulators. With its low 0.6V FB pin, it can
control the regulation of rails as low 0.6V. This makes the part ideal
for state of the art microprocessor, DSP and PLD core voltage
POL converters.
The device open-collector output can operate from 0.2V to 18V and
regulated output voltage can be set by selection of two external
divider resistors. Separating the input from the open collector output
enables the ZXRE160 to be used to make low-cost low drop-out
regulators operating at low input voltages.
The ZXRE160 is available in two grades with initial tolerances of 0.5%
and 1% for the A and standard grades respectively. It is available in
space saving low profile 5 pin SC70/SOT353, thin TSOT25 and very
small DFN1520 packages.
Features
•
Low reference voltage (V
FB
= 0.6V)
• -40°C to +125°C temperature range
•
Reference voltage tolerance at +25°C
•
0.5% ZXRE160A
•
1% ZXRE160
• Typical temperature drift
• <4 mV (0°C to +70°C)
•
<6 mV (-40°C to +85°C)
•
<12mV (-40°C to +125°C)
•
0.2V to 18V open-collector output
•
High power supply rejection
• (>45dB at 300kHz)
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
•
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
ZXRE160_H5 (SC70/SOT353) and
ZXRE160_ET5 (TSOT25)
ZXRE160_FT4 (X2-DFN1520-6)
Applications
• Isolated
DC-DC converters
•
Core voltage POL
•
Low Voltage Low-Dropout linear regulators
• Shunt regulators
• Adjustable voltage reference
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Top view Top view
1
2
3 4
5
6 PGND
N/C
OUT FB
GND
IN
Exposed flag floating or
connect to GND
Top view
1
2
3 4
5
6 PGND
N/C
OUT FB
GND
IN
Exposed flag floating or
connect to GND
Top view