ZXSC420E6TA Diodes Zetex, ZXSC420E6TA Datasheet

IC CONVERTER BOOST SOT23-6

ZXSC420E6TA

Manufacturer Part Number
ZXSC420E6TA
Description
IC CONVERTER BOOST SOT23-6
Manufacturer
Diodes Zetex
Type
Step-Up (Boost)r
Datasheet

Specifications of ZXSC420E6TA

Internal Switch(s)
No
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
Adjustable
Current - Output
300mA
Frequency - Switching
Up to 200kHz
Voltage - Input
1.8 ~ 8 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Power - Output
450mW
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ZXSC420E6TATR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ZXSC420E6TA
Manufacturer:
ZETEX
Quantity:
20 000
VOLTAGE MODE BOOST CONVERTER
DESCRIPTION
The ZXSC410 is voltage mode boost converter in SOT23-6 package. Its excellent
load and line regulation means that for the full supply range from lithium Ion cells,
the output voltage will typically change by less than 1%. Using high efficiency
Zetex switching transistors allow output voltages of tens of volts depending on the
selected transistor. The ZXSC420 includes a battery low indicator. This operates
by indicating when the converter is no longer able to maintain the regulated
output voltage rather than setting a preset threshold, thereby making it suitable for
various battery options and load currents.
FEATURES
APPLICATIONS
DEVICE MARKING
ISSUE 2 - May 2003
TYPICAL APPLICATIONS DIAGRAM
1.65V to 8V supply range
Typical output regulation of ±1%
Over 85% typical efficiency
Output currents up to 300mA
4.5 A typical shutdown current ZXSC410
End of regulation output ZXSC420
System power for battery portable products
LCD bias
Local voltage conversion
C410 ZXSC410
C420 ZXSC420
V
IN
C1
U1
ZXSC410
V
STDN
GND
CC
L1
SENSE
DRIVE
V
FB
1
ORDERING INFORMATION
Q1
FMMT617
R1
DEVICE
ZXSC410E6TA
ZXSC420E6TA
ZHCS1000
D1
R2
R3
C2
REEL
SIZE
V
7”
7”
OUT
WIDTH
TAPE
8mm
8mm
S E M I C O N D U C T O R S
ZXSC410
ZXSC420
QUANTITY
3000 units
3000 units
PER REEL

Related parts for ZXSC420E6TA

ZXSC420E6TA Summary of contents

Page 1

... End of regulation output ZXSC420 APPLICATIONS System power for battery portable products LCD bias Local voltage conversion TYPICAL APPLICATIONS DIAGRAM DEVICE MARKING C410 ZXSC410 C420 ZXSC420 ISSUE 2 - May 2003 ORDERING INFORMATION DEVICE ZXSC410E6TA ZXSC420E6TA L1 D1 ZHCS1000 Q1 R2 FMMT617 DRIVE CC STDN SENSE GND V ...

Page 2

ZXSC410 ZXSC420 ABSOLUTE MAXIMUM RATINGS V -0. DRIVE -0.3V to EOR -0.3V to STDN -0. SENSE -0. Operating Temp. -40°C to Storage Temp. -55°C to Power Dissipation 450mW ELECTRICAL CHARACTERISTICS Test Conditions V ...

Page 3

TYPICAL CHARACTERISTICS ISSUE 2 - May 2003 ZXSC410 ZXSC420 ...

Page 4

ZXSC410 ZXSC420 DEVICE DESCRIPTION Bandgap Reference All threshold voltages and internal currents are derived from a temperature compensated bandgap reference circuit with a reference voltage of 1.22V nominal. Dynamic Drive Output Depending on the input signal, the output is either ...

Page 5

PIN DESCRIPTIONS Pin No. Name GND 3 STDN/EOR 4 SENSE DRIVE APPLICATIONS INFORMATION Switching transistor selection The choice of switching transistor has a major impact on the converter efficiency. For optimum performance, ...

Page 6

ZXSC410 ZXSC420 Sense Resistor A low value sense resistor is required to set the peak current. Power in this resistor is negligible due to the low sense voltage threshold, V SENSE of recommended sense resistors: Manufacture Series Cyntec RL1220 0.022 ...

Page 7

Output voltage adjustment The ZXSC410/420 are adjustable output converters allowing the end user the maximum flexibilty. For adjustable operation a potential divider network is connected as follows: V OUT GND The output voltage is ...

Page 8

ZXSC410 ZXSC420 REFERENCE DESIGNS ZXSC410 DC-DC Controller V =2. =5V; I =100mA OUT LOAD Bill of Materials Ref Value Part Number U1 ZXSC410E6 U2 ZX3CDBS1M832 L1 22µH CMD4D11-220 R1 100m LR1206 / RL1220 R2 16k Generic ...

Page 9

V=1V/DIV; T=10µS/DIV Switching Waveform ISSUE 2 - May 2003 Performance Graphs V=50mV/DIV; T=10µS/DIV Output Ripple 9 ZXSC410 ZXSC420 ...

Page 10

ZXSC410 ZXSC420 ZXSC410 as Triple Output TFT Bias ZXSC410 as Triple Output TFT Bias =9V/180mA VDD V =18V/10mA ON V =9V/10mA OFF A =9V/180mA VDD ...

Page 11

Sequencing A and V VDD ON By adding the circuit below to the LCD bias output (V the converter a 10ms delay can be achieved between A power up and V power up. The circuit operates by VDD ON a ...

Page 12

ZXSC410 ZXSC420 PACKAGE OUTLINE CONTROLLING DIMENSIONS IN MILLIMETRES APPROX CONVERSIONS INCHES. PACKAGE DIMENSIONS Millimetres DIM Min Max A 0.90 1.45 A1 0.00 0.15 A2 0.90 1.30 b 0.35 0.50 C 0.09 0.20 ...

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