NCP9001SNT1G ON Semiconductor, NCP9001SNT1G Datasheet

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NCP9001SNT1G

Manufacturer Part Number
NCP9001SNT1G
Description
Switching Converters, Regulators & Controllers LED DRIVER
Manufacturer
ON Semiconductor
Datasheet

Specifications of NCP9001SNT1G

Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
NCP9001SNT1G
Manufacturer:
ON/可批量供货
Quantity:
20 000
NCP9001
1.5 MHz, 600 mA,
High−Efficiency, Low
Quiescent Current,
Adjustable Output Voltage
Step−Down Converter
portable applications powered from one cell Li−ion or three cell
Alkaline/NiCd/NiMH batteries. The device is available in an adjustable
output voltage from 0.9 V to 3.3 V. It uses synchronous rectification to
increase efficiency and reduce external part count. The device also has a
built−in 1.5 MHz (nominal) oscillator which reduces component size by
allowing a small inductor and capacitors. Automatic switching
PWM/PFM mode offers improved system efficiency.
limiting, and thermal shutdown protection. The NCP9001 is
available in the space saving, low profile TSOP5 package.
Features
Typical Applications
OFF ON
© Semiconductor Components Industries, LLC, 2006
August, 2006 − Rev. 2
The NCP9001 step−down PWM DC−DC converter is optimized for
Finally, it includes an integrated soft−start, cycle−by−cycle current
Load−Current
95.3% of Efficiency for 3.3 V Output and 4.2 V Input and 80 mA
Sources up to 600 mA
1.5 MHz Switching Frequency
Adjustable Output Voltage from 0.9 V to 3.3 V
30 mA Quiescent Current
Synchronous Rectification for Higher Efficiency
2.7 V to 5.5 V Input Voltage Range
Thermal Limit Protection
Shutdown Current Consumption of 0.3 mA
Short Circuit Protection
This is a Pb−Free Device
Cellular Phones, Smart Phones and PDAs
Digital Still/Video Cameras
MP3 Players and Portable Audio Systems
Wireless and DSL Modems
Portable Equipment
USB Powered Devices
VIN
CIN
Figure 1. Typical Application
1
2
3
VIN
GND
EN
FB
LX
5
4
COUT
L
R1
R2
VOUT
Cff
1
†For information on tape and reel specifications,
NCP9001SNT1G
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
5
Device
1
DBP
A
Y
W
G
(Note: Microdot may be in either location)
ORDERING INFORMATION
http://onsemi.com
= Specific Device Code
= Assembly Location
= Year
= Work Week
= Pb−Free Package
SN SUFFIX
CASE 483
TSOP−5
(Pb−Free)
Package
TSOP−5
Publication Order Number:
3000/T ape & Reel
5
1
Shipping
MARKING
DIAGRAM
DBPAYWG
NCP9001/D
G

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NCP9001SNT1G Summary of contents

Page 1

... GND 2 OFF Figure 1. Typical Application © Semiconductor Components Industries, LLC, 2006 August, 2006 − Rev NCP9001SNT1G †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. L VOUT COUT R1 Cff R2 1 http://onsemi ...

Page 2

Figure 2. Efficiency vs. Output Current Vbattery VIN PWM/PFM 1 CONTROL 4.7 mF GND 2 LOGIC CONTROL Enable EN & THERMAL 3 SHUTDOWN Figure 3. Simplified Block Diagram V = 3.3 V out ...

Page 3

PIN FUNCTION DESCRIPTION Pin No. Pin No. TSOP5 UDFN6 Symbol 1 3 VIN GND MAXIMUM RATINGS Rating Minimum Voltage All Pins Maximum Voltage All Pins (Note 2) Maximum ...

Page 4

ELECTRICAL CHARACTERISTICS +85°C ambient temperature, unless otherwise noted, operating conditions V Characteristic Input Voltage Range Undervoltage Lockout (V Falling) IN Quiescent Current PFM No Load Standby Current, EN Low Oscillator Frequency Peak Inductor Current Feedback Reference Voltage FB Pin Tolerance ...

Page 5

V , INPUT VOLTAGE (V) IN Figure 5. Quiescent Current vs. Supply Voltage 1 OUT 0.8 ...

Page 6

EN 2 V/Div V OUT 500 mV/Div 100 ms/Div Figure 11. Soft Start Time (V 1.8 1.7 1.6 1.5 1.4 1 300 mA OUT 1.2 −40 − TEMPERATURE (°C) Figure 13. Frequency vs. Temperature 2.0 ...

Page 7

I = 100 mA OUT 1.0 0 300 mA OUT 0.0 −0 600 mA OUT −1.0 −1 3 −2.0 − TEMPERATURE (°C) Figure 17. Output Voltage Accuracy (V ...

Page 8

Overview The NCP9001 uses a constant frequency, current mode step−down architecture. Both the main (P−Channel MOSFET) and synchronous (N−Channel MOSFET) switches are internal. It delivers a constant voltage from either a single Li−Ion or three cell NiMH/NiCd battery to portable ...

Page 9

Cycle−by−Cycle Current Limitation From the block diagram (Figure 3 used to realize cycle−by−cycle current limit protection. The comparator compares the LX pin voltage with the reference voltage, which is biased by a constant current. If the inductor ...

Page 10

Output Voltage Selection The output voltage is programmed through an external resistor divider connected from V OUT For low power consumption and noise immunity, the resistor from FB to GND (R2) should be in the [100 k−600 k] range. If ...

Page 11

Table 3. List of Inductor FDK MIPW3226 Series TDK VLF3010AT Series Taiyo Yuden LQ CBL2012 Coil craft DO1605−T Series Output Capacitor Selection Selecting the proper output capacitor is based on the desired output ripple voltage. Ceramic capacitors with low ESR ...

Page 12

... H T *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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