DIODES ZXRD060FK-7

A Product Liine of
Dio
odes Incorpo
orated
ZXRD060
Z
0
0.6V
DUAL
L ADJUSTA
ABLE PRECISION SH
HUNT REG
GULATOR
Descriptio
on
Pin Assignme
A
nts
The ZXRD06
60 is a 10-tterminal adjusstable dual shunt
regulator offe
ering excellent temperature stability
s
and ou
utput
handling capability. The ZX
XRD060 simplifies the design of
isolated low voltage DC-DC regulators. With its low 0.6V
0
FB pin, it can control the reg
gulation of railss as low 0.6V. This
makes it idea
al for state of the art microprocessor/DSP and
PLD core volttage POL conv
verters.
ZXRD0
060_FK
(DFN26
626P10)
PGND1 1
NEW PRODUCT
The device open-collector
o
output
o
can ope
erate from 0.2V
V to
18V and regu
ulated output voltage
v
can be set by selectio
on of
two external divider
d
resistors.
Separating th
he input from th
he open collecctor output ena
ables
the ZXRD060
0 to be used to make low--cost low drop
p-out
regulators operating at low input
i
voltages.
The ZXRD060 is availab
ble in two grades with in
nitial
tolerances off 0.5% and 1%
% for the A and
d standard gra
ades
respectively. It is available in the space saving low prrofile
626P10 packag
ge.
10 pin DFN26
Features
•
•
•
•
•
•
•
•
Low reference voltage (VFB = 0.6V)
-40 to 12
25ºC temperatu
ure range
Referencce voltage tolerrance at 25°C
o 0.5%
%
ZXRD060A
A
o 1%
ZXRD060
Typical te
emperature drift
o <4 mV
m (0°C to 70°C
C)
o <6 mV
m (-40°C to 85
5°C)
o <12m
mV (-40°C to 12
25°C)
0.2V to 18V
1 open-collec
ctor output
High pow
wer supply rejection
o
(>45
5dB at 300kHz))
Lead Fre
ee by design/Ro
oHS Compliant (Note 1)
“Green”/H
Halogen free device
d
(Note 2)
Notes:
IN1
OUT1
N/C
GND
FB1
PGND2
IN2
OUT2
FB2
App
plications
•
•
•
•
•
Isolated DC-DC
C converters
Core voltage POL
C
L
Low
Voltage Lo
ow-Dropout line
ear regulators
S
Shunt
regulatorrs
A
Adjustable
volta
age reference
1. No purposefully
p
added lead.
2. Diod
des Inc.’s “Green” policy
p
can be found
d on our website at http://www.diodes..com/products/lead
d_free/index.php.
Typical Ap
pplication Circuit
ZXRD060
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m
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odes Incorporated
A Product Line of
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ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
NEW PRODUCT
Pin Description
Pin
(DFN)
Name
1
PGND1
2
OUT1
3
4
GND
PGND2
5
OUT2
6
7
8
9
10
Flag
FB2
IN2
FB1
IN1
Function
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
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 VIN voltage. This
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
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A Product Line of
Diodes Incorporated
ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated)
Symbol
Parameter
Rating
Unit
VIN
VOUT
VFB
PGND
IOUT
TJ
TST
IN Voltage relative to GND
OUT Voltage relative to GND
FB Voltage relative to GND
PGND Voltage relative to GND
OUT Pin Current
Operating Junction Temperture
Storage Temperature
20
20
20
-0.3 to +0.3
20
-40 to 150
55 to 150
V
V
V
V
mA
°C
°C
NEW PRODUCT
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only; functional
operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure
to absolute maximum rating conditions for extended periods of time.
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and
transporting these devices.
Package Thermal Data
Package
θJA
DFN2626P10
152°C/W
PDIS
TA = 25°C, TJ = 150°C
0.8W
Recommended Operating Conditions
Symbol
Parameter
Min
Max
VIN
IN Voltage Range (0 to 125°C)
2
18
VIN
IN Voltage Range (-40 to 0°C)
2.2
18
OUT Voltage Range
0.2
18
VOUT
IOUT
TA
Units
V
OUT Pin Current
0.3
15
mA
Operating Ambient Temperature Range
-40
125
°C
ZXRD060
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A Product Line of
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ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
Electrical Characteristics
TA = 25°C, VIN = 3.3V, VOUT = VFB, IOUT = 5mA unless otherwise stated (Note 3).
Symbol
Parameter
Conditions
TA = 0°C to 85°C
VFB
Feedback voltage
Min
Typ
Max
ZXRD060A
ZXRD060
0.597
0.594
0.6
0.6
0.603
0.606
ZXRD060A
ZXRD060
0.595
0.592
0.605
0.608
ZXRD060A
0.594
0.606
ZXRD060
0.591
0.609
ZXRD060A
0.593
0.607
ZXRD060
0.590
0.610
Units
V
NEW PRODUCT
TA = -40°C to 85°C
TA = -40°C to 125°C
3.8
FBLOAD
Feedback pin load
regulation
IOUT = 1 to 15mA
FBLINE
Feedback pin line
regulation
VIN = 2V to 18V
VIN = 2.2V to 18V
FBOVR
Output voltage
regulation
VOUT = 0.2V to 18V,
IOUT =1mA
(Ref. Figure 1)
FB input bias
current
VIN = 18V
IFB
TA = -40 to 125°C
0.1
TA = -40 to 125°C
6
10
1
1.5
TA = -40 to 125°C
1.5
-45
TA = -40 to 125°C
-200
0
0.35
VIN = 2.2V to 18V
1
Input current
0.48
1
IOUT =10mA
VIN = 2.2V to 18V
VIN = 18V,
VOUT = 18V,
VFB =0V
IOUT(LK)
OUT leakage
current
ZOUT
Dynamic Output
Impedance
IOUT = 1 to 15mA
f < 1kHz
Power supply
rejection ratio
f = 300kHz
VAC= 0.3VPP
G
Note:
nA
mA
TA = -40 to 125°C
VIN = 2V to 18V
BW
mV
0.7
IOUT =0.3mA
PSRR
mV
1
VIN = 2V to 18V
IIN
mV
mA
TA = -40 to 125°C
1.5
0.1
TA = 125°C
1
0.25
TA = -40 to125°C
0.4
0.6
µA
Ω
>45
dB
Amplifier Unity Gain
Ref: Fig 2
Frequency
600
kHz
Amplifier
Transconductance
5000
mA/V
3. Production testing of the device is performed at 25°C. Functional operation of the device and parameters specified over the operating temperature
range are guaranteed by design, characterisation and process control.
ZXRD060
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A Product Line of
Diodes Incorporated
ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
NEW PRODUCT
Typical Characteristics
ZXRD060
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A Product Line of
Diodes Incorporated
ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
Typical Operating Conditions (cont.)
200
225
200
225
150
180
100
135
100
135
50
90
50
90
NEW PRODUCT
0
45
Gain (dB)
180
Phase (deg)
Gain (dB)
150
0
45
Gain
Gain
Phase
Phas e
-50
0
1
10
Phase (deg)
VOUT = 6V
COUT = 0.22uF
V OUT = 0.6V
COUT = 2.2uF
100
1k
10k
100k
1M
-50
0
1
10
100
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
Gain and Phase vs Frequency, V OUT=0.6V
Gain and Phase vs Frequency, VOUT=6V
50Ω
50Ω
Fig. 2 Test Circuits for Gain and Phase Plots
ZXRD060
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A Product Liine of
Dio
odes Incorpo
orated
ZXRD060
Z
0
0.6V
DUAL
L ADJUSTA
ABLE PRECISION SH
HUNT REG
GULATOR
Applicatio
ons Informa
ation
The following show some ty
ypical applicattion examples for the ZXRD
D060. It is reco
ommended to include the compensation
capacitor C2 to
o guarantee stability. C2 mayy range in value
e from 0.1µF to
o 10µF depend
ding on the app
plication. The time
t
constant
formed by C2 and R3 should be greater tha
an 1ms multiplied by the feedback factor R2
2/(R1 + R2).
NEW PRODUCT
Both C1 and C2
C should be as close to the
e ZXRD060 ass possible and connected to it with the sho
ortest possible track. In the
case of fig 9 an
nd fig10, it mea
ans the opto-co
oupler will have
e to be carefully positioned to
o enable this.
VOU
UT = VREF
R1 ⎞
⎛
VOUT = VREF ⎜1 +
⎟
⎝ R2 ⎠
V − VOUT
R3 = IN
IR3
R3 =
VIN − VOU
UT
IR3
Fig.3 0.6V Shunt
S
Regula
ator
Fig.4 1.0V
1
Shunt Regulator
R
VOU
UT = VREF
R1 ⎞
⎛
VOUT = VREF ⎜1 +
⎟
R2 ⎠
⎝
Fiig.5 0.6V Serries LDO regulator
Fig.6 1.0
0V Series LD
DO regulator
Design guide
1.
2.
Determin
ne IOUT and cho
oose a suitable
e transistor taking power dissiipation into con
nsideration.
Determin
ne IB from I = IOUT (max)
3.
Determin
ne IR3 from
4.
conventional reference
es. There is onlyy an output lea
akage current which
w
is a maxiimum of 1µA. Nevertheless,
N
itt is
e an IKA(min) to ensure
e
that the device operates within its linear range at alll times. IKA(min) ≥ 10µA
necessary to determine
should be
b adequate forr this.
Determin
ne R3 from R3 = VIN − ( VOUT + VBE
B ).
5.
Although
h unlikely to be a problem, ensure that IR3 ≤ 15 mA.
B
(h FE(min) + 1)
IR3 ≥ IB + IKA (min) .
Th
he design of the ZXRD060 eff
ffectively means there is no IKA(min)
limitation as in
K
IR3
ZXRD060
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m
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odes Incorporated
A Product Liine of
Dio
odes Incorpo
orated
ZXRD060
Z
0
0.6V
DUAL
L ADJUSTA
ABLE PRECISION SH
HUNT REG
GULATOR
Applicatio
ons Informa
ation (cont..)
R1 ⎞
⎛
VOUT = VREF ⎜1 +
⎟
R2 ⎠
⎝
( VOUT ≥ 0.2V + VBE )
NEW PRODUCT
R3 =
VIN − VOUT
IR3
Fig.7 1V Currrent-Booste
ed Shunt Reg
gulator
Design guide
1.
2.
Determiine IOUT and ch
hoose a suitable
e transistor takking power disssipation into consideration.
Determiine IB from I = IOUT(max)
3.
Determiine IR3 from
IR3 = IOUT(max)
4.
Determiine R3 from
R3 =
5.
It is besst to let the ZXR
RD060 supply as
a much curren
nt as it can beffore bringing Q1 into conductiion. Not only do
oes this
minimise the strain on Q1, it also gua
arantees the most
m
stable operation. Choose
e a nominal value between 10
0mA and
<15mA for this currentt, IR4.
Calculatte R4 from R4 = VBE
6.
B
(hFE(min) + 1)
VIN − VOUT
IR3
IR4
VOUT goes low and
a LED1 is lit when
w
monitored supply
s
R1 ⎞
⎛
VM > VREF ⎜1 +
⎟
⎝ R2 ⎠
V − ( VF + 0.2)
R3 = IN
IR3
15mA ≥ IR3 ≤ IF(MAX)
orward voltage drrop and current of
o LED1.
VF and IF are fo
Fig. 8 1.15V Overr-Voltage Ind
dicator
ZXRD060
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m
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odes Incorporated
A Product Liine of
Dio
odes Incorpo
orated
ZXRD060
Z
0
0.6V
DUAL
L ADJUSTA
ABLE PRECISION SH
HUNT REG
GULATOR
NEW PRODUCT
Applicatio
ons Informa
ation (cont..)
15mA ≥ IR3 ≤ IF(MAX)
1 mA ≥ IR3 ≤ IF(MAX)
15
V − ( VF + 0.2)
R 3 = IN
IR3
V − ( VF + 0.2)
R3 = IN
IR3
VOU
UT = VREF
R1 ⎞
⎛
VOUT = VREF ⎜ 1 +
⎟
R2 ⎠
⎝
Fig.9 Opto-Isolatted 0.6V Shu
unt Regulatorr
Fig. 10 Opto-Isolated 1..0V Shunt Re
egulator
VF and IF are fo
orward voltage
e drop and forw
ward current resspectively for th
he opto-couple
er LED.
More applicatio
ons information
n is available in
n the following publications which
w
can be fou
und on Diodes’ web site.
AN58 - Design
ning with Diode
es’ References – Shunt Regullation
AN59 - Design
ning with Diode
es’ References – Series Regu
ulation
AN60 - Design
ning with Diode
es’ References – Fixed Regullators and Opto
o-Isolation
AN61 - Design
ning with Diode
es’ References – Extending th
he operating vo
oltage range
AN62 - Design
ning with Diode
es’ References – Other Appliccations
AN63 - Design
ning with Diode
es’ References – ZXRE060 Lo
ow Voltage Reg
gulator
ZXRD060
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odes Incorporated
A Product Line of
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ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
Ordering Information
XX
Tolerance
Package
Packing
A:
±0.5%
None: ±1%
FK: DFN2626P10
-7: Tape & Reel
Tol.
Order Code
Part
0.5%
1%
ZXRD060AFK-7
ZXRD060FK-7
DFN2626P10
DFN2626P10
Identification
Code
S6A
S06
Reel Size
Tape Width
Quantity/Reel
7”, 180mm
7”, 180mm
8mm
8mm
3000
3000
For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf
Marking Information
DFN2626P10
4
6
5
7
5
9
4
8
10
6
Top View
XXX
ZXRD060
Document number: DS35359 Rev. 4 - 2
3
5
2
4
3
2
Y WX
1
NEW PRODUCT
ZXRD060 X XX
XXX : Identification code
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z : represents 52 and 53
X : A~Z : Internal Code
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A Product Line of
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ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
Package Outline Dimensions (All Dimensions in mm)
NEW PRODUCT
DFN2626P10
ZXRD060
Document number: DS35359 Rev. 4 - 2
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A Product Line of
Diodes Incorporated
ZXRD060
0.6V DUAL ADJUSTABLE PRECISION SHUNT REGULATOR
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
NEW PRODUCT
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales
channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and
any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or
systems.
Copyright © 2011, Diodes Incorporated
www.diodes.com
ZXRD060
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