NCP1406SNT1G ON Semiconductor, NCP1406SNT1G Datasheet

IC CONV DC-DC 25MA/25V SOT23-5

NCP1406SNT1G

Manufacturer Part Number
NCP1406SNT1G
Description
IC CONV DC-DC 25MA/25V SOT23-5
Manufacturer
ON Semiconductor
Type
Step-Down (Buck), Step-Up (Boost), Invertingr
Datasheet

Specifications of NCP1406SNT1G

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
Adj to 25V
Current - Output
25mA
Frequency - Switching
1MHz
Voltage - Input
1.4 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
TSOT-23-5, TSOT-5, TSOP-5
Power - Output
500mW
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
NCP1406SNT1G
NCP1406SNT1GOSTR

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NCP1406
25 V/25 mA PFM Step-Up
DC-DC Converter
in a Pulse Frequency Modulation (PFM) scheme with constant peak
current control. It integrates a 0.8 A, 0.7 W internal power switch and
sensing resistor to monitor inductor current. This control scheme
maintains high efficiencies over the entire load current range. The
wide input voltage range, from 1.4V to 5.5 V, enables the user to
operate the device from a Li−Ion battery or a two−cell Alkaline
NiMH. Its ability to boost voltages up to 25 V, and to provide 1 W
output power, makes the NCP1406 the perfect solution for biasing
small and large OLED panels. This device also makes a perfect
solution for biasing a great number of white LEDs in series. A Chip
Enable pin allows the user to control the device to extend the battery
life during standby, and can be pulse−width modulated for white
LED applications. The versatility of the NCP1406 allows it to be
configured not only as a step−up converter, but also as an inverter and
as a step−down converter. This solution is proposed in a
space−saving TSOP−5 package.
Features
Typical Applications
© Semiconductor Components Industries, LLC, 2010
November, 2010 − Rev. 4
The NCP1406 is a monolithic step−up DC−DC converter operating
87% Efficiency at V
Adjustable Output Voltage up to 25 V
0.8 A, 26 V Internal Power Switch
Operating Input Voltage from 1.4 V to 5.5 V
Low Startup Voltage of 1.8 V Typical at No Load
Low Operating Current of 15 mA (Not Switching)
Low Shutdown Current of 0.3 mA
Operating Switching Frequency up to 1 MHz
Output Voltage Soft−Start
Thermal Shutdown Protection
Pb−Free Package is Available
LCD Bias Supplies
Small and Large OLED Display Drivers
White LED Driver for Backlight Displays
Personal Digital Assistants (PDA)
Portable Applications:
Cell Phones, Digital Cameras
PDAs, Games, and Portable Video Players
OUT
= 25 V, I
OUT
= 25 mA, V
IN
= 5 V
1
†For information on tape and reel specifications,
NCP1406SNT1
NCP1406SNT1G
TSOP−5/SOT23−5/SC59−5
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
Device
(Note: Microdot may be in either location)
SN SUFFIX
CASE 483
5
ORDERING INFORMATION
VDD
DAM
A
Y
W
G
CE
FB
PIN CONNECTIONS
http://onsemi.com
1
1
2
3
= Device Marking
= Assembly Location
= Year
= Work Week
= Pb−Free Package
(Top View)
(Pb−Free)
Package
TSOP−5
TSOP−5
Publication Order Number:
5
4
3000 Tape & Reel
3000 Tape & Reel
5
1
LX
GND
Shipping†
MARKING
DIAGRAM
DAM AYW G
NCP1406/D
G

Related parts for NCP1406SNT1G

NCP1406SNT1G Summary of contents

Page 1

... ORDERING INFORMATION Device Package Shipping† NCP1406SNT1 TSOP−5 3000 Tape & Reel NCP1406SNT1G TSOP−5 3000 Tape & Reel (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D ...

Page 2

8.2 mH 2.4 V SUMIDA CR43−8R2MC 1.3 mW VDD FB Enable CE GND R1 110 kW Figure 1. Typical Application Circuit ...

Page 3

Enable Figure 5. Typical 8 V Step−Up Application Circuit FB Bandgap 1.2 V PIN FUNCTION DESCRIPTION Pin Symbol 1 CE Chip Enable Pin (1) The chip is enabled if ...

Page 4

MAXIMUM RATINGS Rating Power Supply Voltage (Pin 3) Input/Output Pin LX (Pin 5) LX Peak Sink Current FB (Pin 2) CE (Pin 1) Input Voltage Range Power Dissipation and Thermal Characteristics Maximum Power Dissipation @ T = 25_C A Thermal ...

Page 5

ELECTRICAL CHARACTERISTICS otherwise noted.) Characteristic ON/OFF TIMING CONTROL Minimum Off Time ( Maximum On Time (Current Not Asserted) Maximum Duty Cycle Minimum Startup Voltage ( mA) OUT Minimum Startup ...

Page 6

V 4 3 OUTPUT CURRENT (mA) OUT Figure 7. Efficiency versus Output Current ( ...

Page 7

T , AMBIENT TEMPERATURE (°C) A Figure 13. Feedback Voltage versus Ambient Temperature 0.18 0.16 0.14 0.12 0.10 0.08 −50 − AMBIENT TEMPERATURE (°C) A Figure 15. ...

Page 8

T , AMBIENT TEMPERATURE (°C) A Figure 19. Soft−start Time versus Ambient Temperature 1.1 1.0 0.9 0.8 0.7 0.6 −50 − AMBIENT TEMPERATURE ...

Page 9

L1 = 8 3.3 mF 5.0 mA OUT OUT V/div 200 mA/div mV/div ...

Page 10

Operation The NCP1406 is a monolithic DC−DC switching converter optimized for single Lithium, two− or three−cell AA/AAA size battery−powered portable products. The NCP1406 operates in a Pulse Frequency Modulation (PFM) scheme with constant peak current control. This scheme maintains high ...

Page 11

The detailed operation of NCP1406 can be best understood by referring to the block diagram and typical application circuits in Figures and 5. The PFM comparator monitors the output voltage via the external feedback resistor divider by ...

Page 12

During shutdown, the IC supply current reduces to 0.3 mA and the LX pin enters high impedance state. However, the input remains connected to the output through the inductor and the Schottky diode, ...

Page 13

The switching frequency at nominal load is expressed as OUT load ) + T ON MAX The maximum output current under this maximum on−time control will be achieved at the limits ...

Page 14

Y5V type ceramic capacitors are not recommended since both their capacitance tolerance and temperature coefficient are too large. The output voltage ripple at nominal load current can be calculated ...

Page 15

Figure 33. Step−Up Converter Demonstration Board Figure 34. Step−Up Converter Demonstration Board Top Layer Copper Top Layer Component Silkscreen Figure 35. Step−Up Converter Demonstration Board http://onsemi.com 15 Bottom Layer Copper ...

Page 16

... Panasonic TDK D1 ON Semiconductor L1 Sumida Electric Co. TDK R1 Panasonic R2 Panasonic U1 ON Semiconductor Part Number Description ECJ2FB0J106M Ceramic Capacitor 0805, 10 mF/6.3 V C1608X5R0J475MT Ceramic Capacitor 0603, 10 mF/6.3 V ECJ3YB1E475M Ceramic Capacitor 1206, 4.7 mF/25 V C3216X5R1E475MT Ceramic Capacitor 1206, 4.7 mF/25 V ECJ1VC1H560K Ceramic Capacitor 0603, 56 pF/50 V ...

Page 17

... Figure 36. Positive−to−Negative Output Converter for Negative LCD Bias 1000 JP1 6 OFF L: CR43−100MC, Sumida C1: ECJ2FB0J106M, Panasonic C2, C5: ECJ3YB1E475M, Panasonic C3: ECJ1VC1H102J, Panasonic C4: ECJ2FB1C225K, Panasonic D1: MBR0520LT1, ON Semiconductor D2, D3: MBR0520LT1 Semiconductor R1: 1.3 MW R2: 110 kW Figure 37. +15 V, −15 V Outputs Converter for LCD Bias Supply C1 2 1000 pF 2.2 mF GND OUT [ * 1.19 ...

Page 18

... V to 5.5 V 820 JP1 6 OFF L: CR43−100MC, Sumida C1: ECJ2FB0J106M, Panasonic C6, C7: ECJ3YB1C106M, Panasonic C3: ECJ1VC1H821J, Panasonic C2, C4, C5: ECJ2FB1C225K, Panasonic D1, D2, D3, D4, D5: MBR0520LT1, ON Semiconductor R1: 1.3 MW R2: 110 kW Figure 38. +15 V, −7.5 V Outputs Converter for CCD Supply Circuit TP1 TP2 6.3 V GND Control Signal ...

Page 19

... C 0.05 H *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “ ...

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