ZXRD060FK-7 Diodes Inc. / Zetex, ZXRD060FK-7 Datasheet - Page 2

• Manufacturer Part Number: ZXRD060FK-7
• Description: Voltage & Current References Shunt Reference U-DFN2626-10,3K
• Manufacturer: Diodes Inc. / Zetex

Specifications of ZXRD060FK-7

• Rohs: yes
• Product: Voltage References
• Topology: Shunt References
• Output Voltage: 0.2 V to 18 V
• Initial Accuracy: 1 %
• Shunt Current (max): 15 mA
• Maximum Operating Temperature: + 125 C
• Package / Case: DFN2626P-10
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Reference Type: Adjustable
• Series Vref - Input Voltage (max): 18 V
• Series Vref - Input Voltage (min): 2 V
• Shunt Current (min): 0.3 mA

Pin Description
Function Block Diagram
The ZXRD060 differs from most other shunt regulators in that it has separate input and output pins and a low voltage
reference. This enables it to regulate rails down to 600mV and makes the part ideal for isolated power supply applications that
use opto-couplers in the feedback loop and where the open-collector output is required to operate down to voltages as low as
200mV.
The wide input voltage range of 2V to 18V and output voltage range of 0.2V to 18V enables the ZXRD060 to be powered from
an auxiliary rail, while controlling a master rail which is above the auxiliary rail voltage, or below the minimum V
allows it to operate as a low-dropout voltage regulator for microprocessor/DSP/PLD cores.
As with other shunt regulators (and shunt references), the ZXRD060 compares its internal amplifier FB pin to a high accuracy
internal reference; if FB is below the reference then OUT turns off, but if FB is above the reference then OUT sinks current –
up to a maximum of 15mA.
ZXRD060
Document number: DS35359 Rev. 4 - 2
(DFN)
Flag
Pin
10
1
2
3
4
5
6
7
8
9
PGND1
PGND2
Name
OUT1
OUT2
GND
FB2
FB1
IN2
IN1
Power Ground 1: Ground return for emitter of output transistor: Connect PGND1/2 and GND together.
Output 1. Connect a capacitor close to device between OUT1 and GND. See Applications Information
section.
Analog Ground: Ground return for reference and amplifiers: Connect GND and PGND1/2 together.
Power Ground 2: Ground return for emitter of output transistor: Connect PGND1/2 and GND together.
Output 2. Connect a capacitor close to device between OUT2 and GND. See Applications Information
section.
Feedback Input 2. Regulates to 600mV nominal.
Supply Input 2. Connect a 0.1μF ceramic capacitor close to the device from IN2 to GND.
Feedback Input 1. Regulates to 600mV nominal.
No connection
Supply Input 1. Connect a 0.1μF ceramic capacitor close to the device from IN1 to GND.
Floating or connect to GND
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
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ZXRD060
August 2011