ZXCL5213V25H5 [DIODES]
Fixed Positive LDO Regulator, 2.5V, 0.325V Dropout, CMOS, PDSO5, SC-70, 5 PIN;
| 型号： | ZXCL5213V25H5 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Fixed Positive LDO Regulator, 2.5V, 0.325V Dropout, CMOS, PDSO5, SC-70, 5 PIN 光电二极管 输出元件 调节器 |
| 文件： | 总11页 (文件大小：277K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ZXCL Series
MICROPOWER SC70-5 & SOT23-5 LOW DROPOUT REGULATORS
ZXCL5213V25, ZXCL5213V26, ZXCL5213V28, ZXCL5213V30, ZXCL5213V33, ZXCL5213V40
ZXCL250, ZXCL260, ZXCL280, ZXCL300, ZXCL330, ZXCL400
DESCRIPTION
The ZXCL series have been designed with space For applications requiring improved performance over
alternative devices, the ZXCL is also offered in the 5 pin
SOT23 package with an industry standard pinout.
sensitive systems in mind. They are available in the
ultra small SC70-5 package, which is half the size of
other SOT23 based regulators.
The devices feature thermal overload and over-current
protection and are available with output voltages of
2.5V, 2.6V, 2.8V, 3V, 3.3V and 4V. Other voltage options
between 1.5V and 4V can be provided. Contact Zetex
marketing for further information.
The devices can be used with all types of output
capacitors including low ESR ceramics and typical
dropout voltage, is only 85mV at 50mA load. Supply
current is minimised with a ground pin current of only
50A at full 150mA load. Logic control allows the
devices to be shut down, consuming typically less than
10nA. These features make the device ideal for battery
powered applications where power economy is
critical.
The ZXCL series are manufactured using CMOS
processing, however advanced design techniques
mean that output noise is improved even when
compared to other bipolar devices.
FEATURES
APPLICATIONS
•
5-pin SC70 package for the ultimate in space
saving
•
•
•
•
•
•
•
Cellular and Cordless phones
Palmtop and laptop computers
PDA
•
•
•
•
•
5-pin SOT23 industry standard pinout
Can be used with all types of output capacitor
Low 85mV dropout at 50mA load
Hand held instruments
Camera, Camcorder, Personal Stereo
PCMCIA cards
50A ground pin current with full 150mA load
Typically less than 10nA ground pin current on
shutdown
Portable and Battery-powered equipment
No-Load Stability, the ZXCL device will maintain regulation and is stable
with no external load. e.g. CMOS RAM applacations.
•
•
•
•
•
2.5, 2.6, 2.8, 3, 3.3 and 4 volts output
Very low noise, without bypass capacitor
Thermal overload and over-current protection
-40 to +85°C operating temperature range
No-load stable
TYPICAL APPLICATION CIRCUIT
PACKAGE FOOTPRINT
ISSUE 7 - AUGUST 2002
1
ZXCL Series
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage with respect to GND
Output short circuit duration
Continuous Power Dissipation
Operating Temperature Range
Storage Temperature Range
Infinite
Internally limited
-40°C to +85°C
-55°C to +125°C
V
-0.3V to 7.0V
-0.3V to 10V
-0.3V to 5.5V
IN
N
O
E
V
Package Power Dissipation (T =25°C)
A
SC70-5
SOT23-5
300mW (Note 1)
450mW (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
V
= V + 0.5V, all values at T = 25 C (Unless otherwise stated)
IN
O
A
LIMITS
TYP
SYMBOL PARAMETER
CONDITIONS
UNITS
MIN
MAX
V
V
Input Voltage
(note2)
5.5
V
IN
O
Output Voltage
I
= 1mA
O
ZXCL250 / 5213V25
ZXCL260 / 5213V26
ZXCL280 / 5213V28
ZXCL300 / 5213V30
ZXCL330 / 5213V33
ZXCL400 / 5213V40
2.450
2.548
2.744
2.940
3.234
3.920
2.5
2.6
2.8
3.0
3.3
4.0
2.550
2.652
2.856
3.060
3.366
4.080
V
I
V
= 100mA
O
+ 0.5V < V < V max.
O
IN IN
2.425
2.522
2.744
2.910
3.201
3.880
2.575
2.678
2.884
3.090
3.399
4.120
ZXCL250 / 5213V25
ZXCL260 / 5213V26
ZXCL280 / 5213V28
ZXCL300 / 5213V30
ZXCL330 / 5213V33
ZXCL400 / 5213V40
V
Output Voltage
Temperature
Coefficient
-15
ppm/°C
∆V /∆T
O
I
I
I
150
100
160
105
mA
mA
O(MAX)
OLIM
Q
Output Current
ZXCL250 / 5213V25 only
800
750
50
120
100
230
ZXCL250 / 5213V25 only
No Load
Over Current Limit
Ground pin current
25
50
40
A
A
A
I
O
= 150mA,
= 100mA,
O
I
ISSUE 7 - AUGUST 2002
2
ZXCL Series
ELECTRICAL CHARACTERISTICS
= V + 0.5V, all values at T = 25 C (Unless otherwise stated)
V
IN
O
A
SYMBOL PARAMETER
CONDITIONS
LIMITS
TYP
UNITS
MIN
MAX
V
Dropout Voltage
Note 3
ZXCL250 / 5213v25
I =10mA
DO
15
85
O
mV
mV
I =50mA
O
163
325
310
280
280
280
280
I =100mA
O
ZXCL260 / 5213v26
15
85
155
I =10mA
O
I =50mA
O
I =100mA
O
ZXCL280 / 5213v28
15
85
140
I =10mA
O
mV
mV
mV
mV
I =50mA
O
I =100mA
O
ZXCL300 / 5213v30
15
85
140
I =10mA
O
I =50mA
O
I =100mA
O
ZXCL330 / 5213v33
15
85
140
I =10mA
O
I =50mA
O
I =100mA
O
ZXCL400 / 5213v40
15
85
140
I =10mA
O
I =50mA
O
I =100mA
O
⌬V
⌬V
Line Regulation
V
=(V +0.5V) to 5.5V, I =1mA
0.02
0.01
50
0.1
%/V
LNR
LDR
IN
O
O
Load Regulation
Output Noise Voltage
I =1mA to 100mA
0.04
%/mA
µV rms
V
O
E
N
f=10Hz to 100kHz, C =10µF,
O
V
V
V
Enable pin voltage for
normal operation
2
10
ENH
T
= -40°C
2.2
0
A
Enable pin voltage for
output shutdown
0.8
V
ENL
Enable pin hysteresis
150
mV
nA
ENHS
I
Enable Pin input
current
V
V
=5.5V
=0V
100
1
EN
EN
EN
I
Shutdown supply
current
µA
QSD
T
Thermal Shutdown
Temperature
125
165
°C
SD
Device testing is performed at T =25ЊC. Device thermal performance is guaranteed by design.
A
Note1: Maximum power dissipation is calculated assuming the device is mounted on a PCB measuring 2 inches
square
Note 2: Output Voltage will start to rise when VIN exceeds a value or approximately 1.3V. For normal
operation, VIN (min) > VOUT (nom) + 0.5V.
Note 3: Dropout voltage is defined as the difference between VIN and VO, when VO has dropped 100mV below
its nominal value. Nominal value of VO is defined at VIN=VO+0.5V.
ISSUE 7 - AUGUST 2002
3
ZXCL Series
TYPICAL CHARACTERISTICS (ZXCL280 / 5213 shown)
6
5
4
3
2
1
0
0.25
0.20
0.15
0.10
0.05
0.00
VIN
IOUT = 100mA
IOUT = 1mA
0
1
2
3
4
5
6
100
5
0
25
50
75
100
125
150
175
Output Current (mA)
Input Voltage (V)
Input to Output Characteristics
Dropout Voltage v Output Current
25.0
24.8
24.6
24.4
24.2
24.0
23.8
23.6
23.4
23.2
23.0
2.81
2.80
2.79
VIN = 3.3V
No Load
VIN = 3.3V
No Load
-50
-25
0
25
50
75
-50
-25
0
25
50
75
100
Temperature (°C)
Output Voltage v Temperature
Temperature (°C)
Ground Current v Temperature
30
25
20
15
10
5
60
No Load
55
50
45
40
35
30
25
20
VIN = 5V
VIN = 3.3V
0
0
1
2
3
4
0
25
50
75
100
125
150
Input Voltage (V)
Ground Current v Input Voltage
Load Current (mA)
Ground Current v Load Current
ISSUE 7 - AUGUST 2002
4
ZXCL Series
TYPICAL CHARACTERISTICS
6
5
4
3
2
1
0
100
V =5V
IL = 1mA to 50mA
COUT =1µF
IN
Enable
50
0
V =5V
I IN=1mA
ILL = 100mA
100
50
COUT =1µF
COUT =10µF
V =3.3V
I IN=1mA
0
ILL = 100mA
COUT =10µF
-50
-100
COUT =1µF
0
10 20 30 40 50 60 70 80 90 100
0.0
0.1
0.2
0.3
0.4
0.5
0.5
1M
Time (µs)
Time (ms)
Start-Up Response
Load Response
6
5
4
3
6
5
4
3
COUT =1µF
COUT =1µF
T &T =2.5µs
T &T =2.5µs
r
f
r
f
20
20
10
10
0
0
-10
-10
-20
-20
0.0
0.1
0.2
0.3
0.4
0.5
0.0
0.1
0.2
0.3
0.4
Time (ms)
Time (ms)
Line Rejection IL =1mA
Line Rejection IL = 100mA
80
70
60
50
40
30
20
10
0
10
1
All Caps Ceramic
Surface Mount
IL = 50mA
IL = 100mA, COUT =1µF
IL = 100mA, COUT =10µF
COUT =10µF
COUT =2.2µF
0.1
No Load, COUT =1µF
No Load, COUT =10µF
COUT =1µF
0.01
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
Frequency (Hz)
Power Supply Rejection v Frequency
Frequency (Hz)
Output Noise v Frequency
ISSUE 7 - AUGUST 2002
5
ZXCL Series
PIN DESCRIPTION
Pin Name
Pin Function
V
Supply Voltage
IN
G
Ground
ND
E
Active HIGH Enable input. TTL/CMOS logic compatible.
N
Connect to V or logic high for normal operation
IN
N/C
No Connection
V
Regulator Output
O
CONNECTION DIAGRAMS
SOT23-5
Package Suffix – E5
SC70-5
Package Suffix – H5
SC70-5
Package Suffix –H5
1
2
5
4
V
G
ND
E
N
V
O
1
2
5
4
V
G
ND
E
N
V
O
1
2
5
4
V
V
E
IN
IN
IN
O
N
/
N C
3
N/C
3
N/C
G
3
D
N
Top View
Top View
Top View
ZXCLxxx
ZXCLxxx
ZXCL5213Vxx
SCHEMATIC DIAGRAM
ISSUE 7 - AUGUST 2002
6
ZXCL Series
Input to Output Diode
Increased Output current
In common with many other LDO regulators, the ZXCL
device has an inherent diode associated with the
output series pass transistor. This diode has its anode
connected to the output and its cathode to the input.
The internal diode is normally reverse biased, but will
conduct if the output is forced above the input by more
Any ZXCL series device may be used in conjunction
with an external PNP transistor to boost the output
current capability. In the application circuit shown
below, a FMMT717 device is employed as the external
pass element. This SOT23 device can supply up to 2.5A
maximum current subject to the thermal dissipation
limits of the package (625mW). Alternative devices
may be used to supply higher levels of current. Note
that with this arrangement, the dropout voltage will be
than a V (approximately 0.6V). Current will then flow
BE
from Vout to Vin. For safe operation, the maximum
current in this diode should be limited to 5mA
continuous and 30mA peak. An external schottky diode
may be used to provide protection when this condition
cannot be satisfied.
increased by the V drop of the external device. Also,
BE
care should be taken to protect the pass transistor in
the event of excessive output current.
Scheme to boost output current to 2A
ISSUE 7 - AUGUST 2002
7
ZXCL Series
APPLICATIONS INFORMATION
Enable Control
A TTL compatible input is provided to allow the
regulator to be shut down. A low voltage on the Enable
pin puts the device into shutdown mode. In this mode
the regulator circuit is switched off and the quiescent
current reduces to virtually zero (typically less than
10nA) for input voltages above the minimum operating
threshold of the device. A high voltage on the Enable
pin ensures normal operation.
R
C
The Enable pin can be connected to V or driven from
IN
an independent source of up to 10V maximum. (e.g.
CMOS logic) for normal operation. There is no clamp
diode from the Enable pin to V , so the V pin may be
IN
IN
at any voltage within its operating range irrespective of
the voltage on the Enable pin. However input voltage
rise time should be kept below 5ms to ensure
consistent start-up response.
Figure 1 Circuit Connection
Current Limit
The ZXCL devices include a current limit circuit which
restricts the maximum output current flow to typically
230mA. Practically the range of over-current should be
considered as minimum 160mA to maximum 800mA.
The device’s robust design means that an output short
T
d
circuit to any voltage between ground and V
tolerated for an indefinite period.
can be
OUT
Figure 2 Start up delay (T )
d
Thermal Overload
Thermal overload protection is included on chip. When
the device junction temperature exceeds a minimum
125°C the device will shut down. The sense circuit will
re-activate the output as the device cools. It will then
cycle until the overload is removed. The thermal
overload protection will be activated when high load
currents or high input to output voltage differentials
cause excess dissipation in the device.
VIN
IN − 1.5
Td(NOM) = RCIn
V
Start up delay
A small amount of hysteresis is provided on the Enable
pin to ensure clean switching. This feature can be used
to introduce a start up delay if required. Addition of a
simple RC network on the Enable pin provides this
function. The following diagram illustrates this circuit
connection. The equation provided enables calculation
of the delay period.
Calculation of start up delay as above
ISSUE 7 - AUGUST 2002
8
ZXCL Series
APPLICATIONS INFORMATION (Cont)
The dielectric of the ceramic capacitance is an
important consideration for the ZXCL Series operation
over temperature. Zetex recommends minimum
dielectric specification of X7R for the input and output
capacitors. For example a ceramic capacitor with X7R
dielectric will lose 20% of its capacitance over a -40ЊC to
85ЊC temperature range, whereas a capacitor with a
Y5V dielectric loses 80% of its capacitance at -40ЊC and
75% at 85ЊC.
Power Dissipation
The maximum allowable power dissipation of the
device for normal operation (Pmax), is a function of the
package junction to ambient thermal resistance (θja),
maximum junction temperature (Tjmax), and ambient
temperature (Tamb), according to the expression:
P
= (Tj
– T
) / θ
amb ja
max
max
An input capacitor of 1F (ceramic or tantalum) is
recommended to filter supply noise at the device input
and will improve ripple rejection.
The maximum output current (I
) at a given value of
max
Input voltage (V ) and output voltage (V
IN
) is then
OUT
given by
The input and output capacitors should be positioned
close to the device, and a ground plane board layout
should be used to minimise the effects of parasitic track
resistance.
I
= P
/ (V - V
)
OUT
max
max
IN
The value of θja is strongly dependent upon the type of
PC board used. Using the SC70 package it will range
from approximately 280 °C/W for a multi-layer board to
around 450°C/W for a single sided board. It will range
from 180°C/W to 300°C/W for the SOT23-5 package. To
Dropout Voltage
The output pass transistor is a large PMOS device,
which acts like a resistor when the regulator enters the
dropout region. The dropout voltage is therefore
proportional to output current as shown in the typical
characteristics.
avoid entering the thermal shutdown state, Tj
max
should be assumed to be 125°C and I
less than the
max
over-current limit,(I
). Power derating for the SC70
OLIM
and SOT23-5 packages is shown in the following
graph.
Ground Current
500
The use of a PMOS device ensures a low value of
ground current under all conditions including dropout,
start-up and maximum load.
400
SOT23
Power Supply Rejection and Load Transient Response
300
Line and Load transient response graphs are shown in
the typical characteristics.
200
SC70
These show both the DC and dynamic shift in the
output voltage with step changes of input voltage and
load current, and how this is affected by the output
capacitor.
100
0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Derating Curve
If improved transient response is required, then an
output capacitor with lower ESR value should be used.
Larger capacitors will reduce over/undershoot, but will
increase the settling time. Best results are obtained
using a ground plane layout to minimise board
parasitics.
Capacitor Selection and Regulator Stability
The device is designed to operate with all types of
output capacitor, including tantalum and low ESR
ceramic. For stability over the full operating range from
no load to maximum load, an output capacitor with a
minimum value of 1F is recommended, although this
can be increased without limit to improve load
transient performance. Higher values of output
capacitor will also reduce output noise. Capacitors with
ESRlessthan0.5⍀ arerecommended forbestresults.
ISSUE 7 - AUGUST 2002
9
ZXCL Series
S70-5 PACKAGE OUTLINE
SC70-5 PACKAGE DIMENSIONS
MILLIMETRES
INCHES
DIM
MIN
ᎏ
MAX
1.00
0.10
0.90
0.30
0.25
MIN
ᎏ
MAX
0.0393
0.0039
A
A1
A2
b
C
D
ᎏ
ᎏ
0.70
0.15
0.08
0.0275 0.0354
0.006 0.0118
0.0031 0.0098
0.0787 BSC
2.0 BSC
E
E1
e
e1
L
a
2.10 BSC
1.25 BSC
0.65 BSC
1.30 BSC
0.0826 BSC
0.0492 BSC
0.0255 BSC
0.0511 BSC
0.26
0Њ
0.46
8Њ
0.0102 0.0181
0Њ
8Њ
CONTROLLING DIMENSIONS IN MILLIMETRES
APPROX CONVERTED DIMENSIONS IN INCHES
SOT23-5 PACKAGE DIMENSIONS
MILLIMETRES
INCHES
MIN MAX
0.0354 0.0570
0.00 0.0059
DIM
MIN
0.90
0.00
0.90
0.20
0.09
2.70
2.20
1.30
MAX
1.45
0.15
1.3
SOT23-5 PACKAGE INFORMATION
A
A1
A2
b
0.0354 0.0511
0.0078 0.0196
0.0035 0.0102
0.1062 0.1220
0.0866 0.1181
0.0511 0.0708
0.0374 REF
0.50
0.26
3.10
3.20
1.80
C
D
E
E1
e
0.95 REF
1.90 REF
e1
L
0.0748 REF
0.10
0.60
30
0.0039 0.0236
a°
0
0
30
CONTROLLING DIMENSIONS IN MILLIMETRES
APPROX CONVERTED DIMENSIONS IN INCHES
ISSUE 7 - AUGUST 2002
10
ZXCL Series
ORDERING INFORMATION
Output
Voltage
Package
Partmarking
Device
V
ZXCL250H5
2.5
2.6
2.8
3.0
3.3
4.0
2.5
2.6
2.8
3.0
3.3
4.0
2.5
2.6
2.8
3.0
3.3
4.0
SC70
SC70
L25A
L26A
L28A
L30A
L33A
L40A
L25C
L26C
L28C
L30C
L33C
L40C
L25B
L26B
L28B
L30B
L33B
L40B
ZXCL260H5
ZXCL280H5
SC70
ZXCL300H5
SC70
ZXCL330H5
SC70
ZXCL400H5
SC70
ZXCL5213V25H5
ZXCL5213V26H5
ZXCL5213V28H5
ZXCL5213V30H5
ZXCL5213V33H5
ZXCL5213V40H5
ZXCL250E5
SC70
SC70
SC70
SC70
SC70
SC70
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
ZXCL260E5
ZXCL280E5
ZXCL300E5
ZXCL330E5
ZXCL400E5
© Zetex plc 2002
Europe
Americas
Asia Pacific
Zetex plc
Fields New Road
Chadderton
Oldham, OL9 8NP
United Kingdom
Telephone (44) 161 622 4422
Fax: (44) 161 622 4420
uk.sales@zetex.com
Zetex GmbH
Streitfeldstraße 19
D-81673 München
Zetex Inc
700 Veterans Memorial Hwy
Hauppauge, NY11788
Zetex (Asia) Ltd
3701-04 Metroplaza, Tower 1
Hing Fong Road
Kwai Fong
Hong Kong
Telephone: (852) 26100 611
Fax: (852) 24250 494
asia.sales@zetex.com
Germany
USA
Telefon: (49) 89 45 49 49 0
Fax: (49) 89 45 49 49 49
europe.sales@zetex.com
Telephone: (631) 360 2222
Fax: (631) 360 8222
usa.sales@zetex.com
These offices are supported by agents and distributors in major countries world-wide.
This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced
for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company
reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.
For the latest product information, log on to www.zetex.com
ISSUE 7 - AUGUST 2002
11
相关型号：
ZXCL5213V25H5TC
Fixed Positive LDO Regulator, 2.5V, 0.325V Dropout, CMOS, PDSO5, SC-70, 5 PIN
DIODES
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