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ZXCP330E6 PDF даташит

Спецификация ZXCP330E6 изготовлена ​​​​«Zetex Semiconductors» и имеет функцию, называемую «SWITCHED CAPACITOR DC-DC CONVERTER».

Детали детали

Номер произв ZXCP330E6
Описание SWITCHED CAPACITOR DC-DC CONVERTER
Производители Zetex Semiconductors
логотип Zetex Semiconductors логотип 

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ZXCP330E6 Даташит, Описание, Даташиты
SWITCHED CAPACITOR DC-DC CONVERTER
ZXCP330
DEVICE DESCRIPTION
The ZXCP330 is the first in a series of switched capacitor DC to DC converters,
converting an input voltage from between 2 volts and 4.4 volts to a regulated
output voltage of 3.3V with a maximum load current of 40mA. The device
operates with one flying capacitor and two small bypass capacitors at input
and output making for a very small solution. Very low quiescent current
makes these devices ideal for low power and battery powered applications.
Regulation is achieved by sensing the output and enabling the device charge pump when it falls below the sense
threshold. This technique leads to high efficiency conversion. The method is also efficient for low current loads.
Here the duty cycle will be low and the quiescent current drawn whilst the charge pump is disabled is very small.
The device includes a pin for logic controlled shutdown of the output, and also features thermal shutdown, which
protects against short circuit damage as well as excessive temperatures. The device is supplied in a 6 lead SOT-23
package.
Contact Zetex marketing for availability of other voltage options.
FEATURES
· Very low power: IQ = 20µA
APPLICATIONS
· Battery backup supplies
· Regulated output voltage: 3.3V, ± 4%
· Smart card readers
· Output current: 20mA at VIN = 2V
· Li-Ion battery backup supplies
· Output current: 40mA at VIN = 2.5V
· SIM interface supplies for cellular phones
· No inductors required
· Hand held computers
· Very low shutdown current: <1µA
· Short circuit and over-temp protected
· Very small package: SOT23-6 pin
APPLICATIONS DIAGRAM
PROVISIONAL ISSUE A - DECEMBER 2001
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ZXCP330E6 Даташит, Описание, Даташиты
ZXCP330
ABSOLUTE MAXIMUM RATINGS
VIN to GND
EN to ground
VOUT to ground
IOUT
-0.3V to +7V
-0.3V to +7V
-0.3V to +5.5V
150mA
Operating Temperature
Storage Temperature Range
Continuous Power Dissipation
-40°C to 85°C
-55°C to 125°C
Thermally ltd
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (unless otherwise stated): TA=-40°C to 85°C, (typical values at 25°), EN = VIN, CFLY=0.22F,
CIN=10F, COUT=10F
PARAMETER
Input Voltage
Output Voltage
Note 1
Maximum Output Current
Output Short-Circuit Current
Supply Current
Efficiency
Switching Frequency
Line Regulation (Note 2)
Load Regulation (Note 2)
Output Voltage Ripple
Enable pin Input Threshold
High
Enable pin Input Threshold
Low
Enable pin Input current
Shutdown supply Current
Shutdown time (Note 3)
VOUT Turn-on Time
Thermal Shutdown
Temperature
SYMBOL
VIN
VOUT
IO(max)
ISC
IQ
fOSC
VLDR
VLDR
VR
VEN(ON)
VEN(OFF)
IEN
IQ(SD)
TSD
TON
TSD
CONDITIONS
MIN
2.0
2VՅVINՅ 4.4V, IOUTՅ20mA
2.5VՅVINՅ4.4V, IOUTՅ40mA
VIN Ն 2V
VIN Ն 2.5V
VIN = 2V
2VՅ VINՅ 4.4V , No load
VIN=2V, IOUT = 20mA
Oscillator free running
3.17
3.17
20
40
VIN=2.5V to 4.4V, IOUT=40mA, -50
TA=25°C
IOUT=1mA to 40mA, VIN=2.5V -50
TA=25°C
f=500kHz, VIN=2.5V,
IOUT = 40mA
Device active
1.5
Device shutdown
0
TA=25°C, EN = 4.4V
EN=0V, 2V Յ VIN Յ 4.4V,
TA=25°C
VIN = 2.5V, EN changes from
1.5V to 0.3V
VIN=2V, IOUT = 0mA
135
TYP
3.3
3.3
125
20
82
500
0
0
20
20
500
150
MAX
4.4
3.43
3.43
UNIT
V
V
mA
mA
40 A
%
kHz
50 mV
50 mV
mV pk-pk
5.5 V
0.3 V
100 nA
1 A
s
s
165 °C
Note 1: Contact Zetex marketing for availability of alternative output voltages
Note 2: Output can deviate EITHER side of Vnominal for increased load current or line voltage
Note 3: Shutdown time is the time taken for IIN to reduce to <1A
PROVISIONAL ISSUE A - DECEMBER 2001
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ZXCP330E6 Даташит, Описание, Даташиты
TYPICAL CHARACTERISTICS
ZXCP330
PROVISIONAL ISSUE A - DECEMBER 2001
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Номер в каталогеОписаниеПроизводители
ZXCP330E6SWITCHED CAPACITOR DC-DC CONVERTERZetex Semiconductors
Zetex Semiconductors

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