NCP1404 Series Product Preview 350 mA PWM/PFM Step-Up DC-DC Converter with Low Battery Detector http://onsemi.com 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. Features • • • • • 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 1 TSOP–6 SN SUFFIX CASE 318G PIN CONNECTIONS AND MARKING DIAGRAM LBI 1 OUT 2 VDD 3 XXd • • • • • 6 6 LX 5 LBO 4 GND (Top View) XX = Specific Device Code d = Date Code Typical Applications • • • • • • • • See specific marking information in the ordering information table on page 3 of this data sheet. Digital Cameras Cellular Telephones Personal Digital Assistants (PDA) Camcorders Electronic Games Pagers Portable Audio (MP3) Handheld Instruments ORDERING INFORMATION Device Package Shipping NCP1404SN19T1 TSOP–6 3000/Tape & Reel NCP1404SN27T1 TSOP–6 3000/Tape & Reel NCP1404SN30T1 TSOP–6 3000/Tape & Reel NCP1404SN33T1 TSOP–6 3000/Tape & Reel NCP1404SN50T1 TSOP–6 3000/Tape & Reel This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice. Semiconductor Components Industries, LLC, 2002 June, 2002 – Rev. 0 1 Publication Order Number: NCP1404/D NCP1404 Series L 10 H SD MBRM110LT1 VIN 0.8 V to 3.0 V VOUT 3.3 V C1 10 F RLB1 LBI 1 2 VDD 6 NCP1404 OUT RLB2 C2 10 F LX LBO 5 GND 4 3 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 1 SOFT–START OSCILLATOR LBO 5 GND 4 VDD 3 0.4 V VOLTAGE REFERENCE + VDD Figure 2. Representative Block Diagram http://onsemi.com 2 NCP1404 Series PIN FUNCTION DESCRIPTIONS Pin Symbol Description 1 LBI 2 OUT Output voltage monitor pin 3 VDD Power supply pin 4 GND Ground pin 5 LBO Low battery detection output pin 6 LX Low battery detection input pin External inductor connection pin to power switch drain ORDERING INFORMATION Device Output Voltage Frequency Device Marking NCP1404SN19T1 1.9 V 600 kHz DB? NCP1404SN27T1 2.7 V 600 kHz DB? NCP1404SN30T1 3.0 V 600 kHz DB? NCP1404SN33T1 3.3 V 600 kHz DB? NCP1404SN50T1 5.0 V 600 kHz DB? NOTE: Package Shipping TSOP–6 3000 Units per er 7 Inch Reel 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 Symbol Value Unit Power Supply Voltage (Pin 3) VDD –0.3 to 6.0 V Input/Output Pins Pin 1, Pin 2, Pin 5, Pin 6 Voltage VIO –0.3 to 6.0 V LX Pin Peak Sink Current ILX 1000 mA RθJA 250 C/W Operating Ambient Temperature Range TA –40 to + 85 C Operating Junction Temperature Range TJ –40 to + 125 C Storage Temperature Range Tstg –55 to +150 C Thermal Resistance Junction to Air 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. http://onsemi.com 3 NCP1404 Series ELECTRICAL CHARACTERISTICS (For all values TA = 25C unless otherwise noted.) Symbol Min Typ Max fOSC f 480 600 720 kHz – 0.11 – %/C Maximum PWM Duty Cycle (VOUT = VSET × 0.96) DMAX 70 78 86 % PFM Duty Cycle DPFM 12 17 22 % Minimum Start–up Voltage (IO = 0 mA, VDD = VOUT = VSET) Vstart – 0.8 0.95 V Vstart – –1.6 – mV/C tSS 0.3 2.0 – ms Internal Switching N–Channel FET Drain Voltage VLX – – 6.0 V LX On–State Current (VDD = VOUT = VSET × 0.96, VLX = 0.6 V) Device Suffix: 19T1 27T1 30T1 33T1 50T1 VLX 350 550 550 550 600 400 600 600 600 650 – – – – – ILXLIM 700 750 800 mA ILKG – 0.5 1.0 mA LBI Threshold Voltage Falling VLBI 0.396 0.400 0.404 V LBI Hysteresis VHYS – 30 – mV ILBI – 1.5 8.0 nA LBO Low Output Voltage VLBO(low) – – 0.05 V LBO Off–State Leakage Current ILBOLKG – 1 100 nA Supply Voltage VDD 0.8 5.5 V Output Voltage Device Suffix: VOUT Characteristic Unit OSCILLATOR Frequency (VOUT = VSET × 0.96) (Note 4) Frequency Temperature Coefficient (TA = –40 to +85C) Minimum Start–up Voltage Temperature Coefficient (TA = –40 to +85C) Soft–Start Time (VOUT = VSET) LX (PIN 6) Current Limit Off–State Leakage Current (VLX = 6.0 V, TA = –40 to +85C) mA LBI (PIN 1) LBI Input Current LBO (PIN 5) TOTAL DEVICE 19T1 27T1 30T1 33T1 50T1 1.9 2.7 3.0 3.3 5.0 1.948 2.768 3.075 3.383 5.125 VOUT – 100 – ppm/C Operating Current (VOUT = VSET × 0.96, VDD = VSET × 0.6) (Note 5) IDD1 – 220 300 A No Switching Operating Current (VOUT = VSET + 0.5 V) IDD2 – 40 55 A IDD(no load) – 65 80 A Output Voltage Temperature Coefficient (TA = –40 to +85C) No Load Operating Current (VDD = VSET × 0.6, IOUT = 0 mA ) (Note 7) Maximum Output Current (VDD = VOUT, VIN = VSET × 0.8, Voltage Regulation < 3%) Device Suffix: 19T1 27T1 30T1 33T1 50T1 4. 5. 6. 7. V 1.853 2.632 2.925 3.218 4.875 IOUT mA 150 300 300 300 350 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. http://onsemi.com 4 200 350 350 350 400 – – – – – NCP1404 Series Other Application Circuit L MGSF1P02LT1 VIN 5.0 V MBR0520LT1 820 + + RLB1 LBI LX 1 RLB2 OUT 2 VDD 6 NCP1404 33 F VOUT 3.3 V LBO 5 To MCU I/O Pin GND 4 3 GND Figure 3. Step–down Application http://onsemi.com 5 33 F NCP1404 Series PACKAGE DIMENSIONS TSOP–6 CASE 318G–02 ISSUE H A 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. L 6 S 1 5 4 2 3 B D G M J C 0.05 (0.002) H K http://onsemi.com 6 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 NCP1404 Series Notes http://onsemi.com 7 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: [email protected] JAPAN: ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031 Phone: 81–3–5740–2700 Email: [email protected] ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. N. American Technical Support: 800–282–9855 Toll Free USA/Canada http://onsemi.com 8 NCP1404/D