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NCP1404 Series Product Preview 350 mA PWM/PFM Step-Up DC-DC Converter with Low Battery Detector
The NCP1404 series are monolithic PWM/PFM step-up DC to DC converters which can automatically change operation mode from PWM to PFM at light loads to improve efficiency at light loads. With only four external components, this series allow a simple means to implement highly efficient converters for powering up portable equipment up to 350 mA loading. Additionally, this series is featured with a Low Battery Detector to monitor battery voltage. The NCP1404 device series are available in space-saving TSOP-6 package with five standard regulated output voltages. Additional voltages that range from 1.8 V to 5.0 V in 100 mV steps can be manufactured.
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6 1 TSOP-6 SN SUFFIX CASE 318G
* * * * * * * * * * * * * * * * * *
Low Start-Up Voltage of 0.8 V PWM Oscillator Frequency of 600 kHz at 20% Accuracy High Efficiency 85% at IOUT = 200 mA, VIN = 2.5 V, VOUT = 3.3 V Output Current up to 350 mA at VIN = 2.5 V, VOUT = 3.3 V Duty Ratio: 17% to 85% typ. PWM Control Duty Ratio: 17% typ. PFM Control Output Voltage Accuracy 2.5% Low Battery Detection with Open-drain Detector Output Separated Power Supply Pin Low Profile and Minimum External Parts Micro Miniature TSOP-6 Digital Cameras Cellular Telephones Personal Digital Assistants (PDA) Camcorders Electronic Games Pagers Portable Audio (MP3) Handheld Instruments
PIN CONNECTIONS AND MARKING DIAGRAM
LBI OUT VDD 1 XXd 2 3 (Top View) XX = Specific Device Code d = Date Code
See specific marking information in the ordering information table on page 3 of this data sheet.
6 5 4
LX LBO GND
Typical Applications
ORDERING INFORMATION
Device NCP1404SN19T1 NCP1404SN27T1 NCP1404SN30T1 NCP1404SN33T1 NCP1404SN50T1 Package TSOP-6 TSOP-6 TSOP-6 TSOP-6 TSOP-6 Shipping 3000/T ape & Reel 3000/T ape & Reel 3000/T ape & Reel 3000/T ape & Reel 3000/T ape & Reel
This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice.
(c) Semiconductor Components Industries, LLC, 2002
1
June, 2002 - Rev. 0
Publication Order Number: NCP1404/D
NCP1404 Series
L VIN 0.8 V to 3.0 V C1 10 mF RLB1 LBI 1 LX 6 10 mH SD MBRM110LT1 VOUT 3.3 V C2 10 mF
NCP1404
RLB2
OUT 2 VDD 3
LBO 5 GND 4 TO MCU
Figure 1. Typical Step-Up Converter Application
LX 6
OUT DRIVER 2 ERROR AMPLIFIER PWM/PFM CONTROLLER LBI 0.5 V VOLTAGE REFERENCE GND 4 VDD 1 SOFT-START OSCILLATOR LBO 5 0.4 V VOLTAGE REFERENCE + + -
+
3
VDD
Figure 2. Representative Block Diagram
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NCP1404 Series
PIN FUNCTION DESCRIPTIONS
Pin 1 2 3 4 5 6 Symbol LBI OUT VDD GND LBO LX Low battery detection input pin Output voltage monitor pin Power supply pin Ground pin Low battery detection output pin External inductor connection pin to power switch drain Description
ORDERING INFORMATION
Device NCP1404SN19T1 NCP1404SN27T1 NCP1404SN30T1 NCP1404SN33T1 NCP1404SN50T1 NOTE: Output Voltage 1.9 V 2.7 V 3.0 V 3.3 V 5.0 V Frequency 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz Device Marking DB? DB? DB? DB? DB? TSOP-6 3000 Units per 7 Inch Reel er Package Shipping
The ordering information lists five standard output voltage device options. Additional device with output voltage ranging from 1.8 V to 5.0 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability.
MAXIMUM RATINGS
Rating Power Supply Voltage (Pin 3) Input/Output Pins Pin 1, Pin 2, Pin 5, Pin 6 Voltage LX Pin Peak Sink Current Thermal Resistance Junction to Air Operating Ambient Temperature Range Operating Junction Temperature Range Storage Temperature Range 1. This device series contains ESD protection and exceeds the following tests: Human Body Model (HBM) "2.0 kV per JEDEC standard: JESD22-A114. Machine Model (MM) "200 V per JEDEC standard: JESD22-A115. 2. Latch-up Current Maximum Rating: "150 mA per JEDEC standard: JESD78. 3. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J-STD-020A. Symbol VDD VIO ILX RJA TA TJ Tstg Value -0.3 to 6.0 -0.3 to 6.0 1000 250 -40 to + 85 -40 to + 125 -55 to +150 Unit V V mA _C/W _C _C _C
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NCP1404 Series
ELECTRICAL CHARACTERISTICS (For all values TA = 25_C unless otherwise noted.)
Characteristic OSCILLATOR Frequency (VOUT = VSET x 0.96) (Note 4) Frequency Temperature Coefficient (TA = -40 to +85_C) Maximum PWM Duty Cycle (VOUT = VSET x 0.96) PFM Duty Cycle Minimum Start-up Voltage (IO = 0 mA, VDD = VOUT = VSET) Minimum Start-up Voltage Temperature Coefficient (TA = -40 to +85_C) Soft-Start Time (VOUT = VSET) LX (PIN 6) Internal Switching N-Channel FET Drain Voltage LX On-State Current (VDD = VOUT = VSET x 0.96, VLX = 0.6 V) Device Suffix: 19T1 27T1 30T1 33T1 50T1 Current Limit Off-State Leakage Current (VLX = 6.0 V, TA = -40 to +85_C) LBI (PIN 1) LBI Threshold Voltage Falling LBI Hysteresis LBI Input Current LBO (PIN 5) LBO Low Output Voltage LBO Off-State Leakage Current TOTAL DEVICE Supply Voltage Output Voltage Device Suffix: 19T1 27T1 30T1 33T1 50T1 DVOUT IDD1 IDD2 IDD(no load) IOUT 150 300 300 300 350 200 350 350 350 400 - - - - - VDD VOUT 1.853 2.632 2.925 3.218 4.875 - - - - 1.9 2.7 3.0 3.3 5.0 100 220 40 65 1.948 2.768 3.075 3.383 5.125 - 300 55 80 ppm/_C mA mA mA mA 0.8 5.5 V V VLBO(low) ILBOLKG - - - 1 0.05 100 V nA VLBI VHYS ILBI 0.396 - - 0.400 30 1.5 0.404 - 8.0 V mV nA VLX VLX 350 550 550 550 600 ILXLIM ILKG 700 - 400 600 600 600 650 750 0.5 - - - - - 800 1.0 mA mA - - 6.0 V mA fOSC Df DMAX DPFM Vstart DVstart tSS 480 - 70 12 - - 0.3 600 0.11 78 17 0.8 -1.6 2.0 720 - 86 22 0.95 - - kHz %/_C % % V mV/_C ms Symbol Min Typ Max Unit
Output Voltage Temperature Coefficient (TA = -40 to +85_C) Operating Current (VOUT = VSET x 0.96, VDD = VSET x 0.6) (Note 5) No Switching Operating Current (VOUT = VSET + 0.5 V) No Load Operating Current (VDD = VSET x 0.6, IOUT = 0 mA ) (Note 7) Maximum Output Current (VDD = VOUT, VIN = VSET x 0.8, Voltage Regulation < 3%) Device Suffix: 19T1 27T1 30T1 33T1 50T1 4. 5. 6. 7.
VSET means setting of output voltage. Operating current is the current consumption of the device in PWM mode. No switching operating current is the current consumption of the device when there is no switching. No load operating current is the current consumption of the device in PFM mode at no load.
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NCP1404 Series
Other Application Circuit
L VIN 5.0 V 33 mF + RLB1 LBI 1 LX 6 MGSF1P02LT1 MBR0520LT1 + 33 mF VOUT 3.3 V
820
NCP1404
RLB2
OUT 2 VDD 3
LBO 5 GND 4 GND To MCU I/O Pin
Figure 3. Step-down Application
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NCP1404 Series
PACKAGE DIMENSIONS
TSOP-6 CASE 318G-02 ISSUE H
A L
6 5 1 2 4 3 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. DIM A B C D G H J K L M S MILLIMETERS MIN MAX 2.90 3.10 1.30 1.70 0.90 1.10 0.25 0.50 0.85 1.05 0.013 0.100 0.10 0.26 0.20 0.60 1.25 1.55 0_ 10 _ 2.50 3.00 INCHES MIN MAX 0.1142 0.1220 0.0512 0.0669 0.0354 0.0433 0.0098 0.0197 0.0335 0.0413 0.0005 0.0040 0.0040 0.0102 0.0079 0.0236 0.0493 0.0610 0_ 10 _ 0.0985 0.1181
S
B
D G M 0.05 (0.002) H C K J
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NCP1404 Series
Notes
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NCP1404 Series
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. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indem nify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-0031 Phone: 81-3-5740-2700 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative.
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NCP1404/D

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