NCP1402 ONSEMI | Alldatasheet

Document overview

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Technical content

Features

  • Extremely Low Start−Up V oltage of 0.8 V
  • Operation Down to Less than 0.3 V
  • High Efficiency 85% (Vin = 2.0 V , VOUT = 3.0 V , 70 mA)
  • Low Operating Current of 30 A (VOUT = 1.9 V)
  • Output V oltage Accuracy ± 2.5%
  • Low Converter Ripple with Typical 30 mV
  • Only Three External Components Are Required
  • Chip Enable Power Down Capability for Extended Battery Life
  • Micro Miniature Thin SOT−23−5 Packages Typical Applications
  • Cellular Telephones
  • Pagers
  • Personal Digital Assistants (PDA)
  • Electronic Games
  • Portable Audio (MP3)
  • Camcorders
  • Digital Cameras
  • Handheld Instruments

ORDERING INFORMATION

SOT23−5 (TSOP−5, SC59−5) SN SUFFIX CASE 483 PIN CONNECTIONS AND MARKING DIAGRAM

3 GND

(Top View) xxx = Marking Y = Year W = Work Week See detailed ordering and shipping information in the ordering information section on page 3 of this data sheet. http://onsemi.com

Figure 1. Typical Step−Up Converter Application Figure 2. Representative Block Diagram

1 CE Chip Enable pin1 CE Chi Enable in

2 OUT Output voltage monitor pin, also the power supply pin of the device

3 NC No internal connection to this pin

4 GND Ground pin

5 LX External inductor connection pin to power switch drain

http://onsemi.com Device Output Voltage Device Marking Package Shipping NCP1402SN19T1 1.9 V DAU NCP1402SN27T1 2.7 V DAE NCP1402SN30T1 3.0 V DAF SOT23−5 3000 Units Per Reel NCP1402SN33T1 3.3 V DAG SOT 23−5 3000 U nits Per R eel NCP1402SN40T1 4.0 V DCR NCP1402SN50T1 5.0 V DAH NOTE: 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. ABSOLUTE MAXIMUM RATINGS Rating Symbol Value Unit ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Supply Voltage (Pin 2) ÁÁÁÁÁ ÁÁÁÁÁ VOUT ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 6.0 ÁÁÁÁ ÁÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Input/Output Pins LX (Pin 5) LX Peak Sink Current ÁÁÁÁÁ Á ÁÁÁ Á Á ÁÁÁ Á ÁÁÁÁÁ VLX ILX ÁÁÁÁÁÁÁ Á ÁÁÁÁÁ Á Á ÁÁÁÁÁ Á ÁÁÁÁÁÁÁ −0.3 to 6.0 400 ÁÁÁÁ Á ÁÁ Á Á ÁÁ Á ÁÁÁÁ V mA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ CE (Pin 1) Input Voltage Range Input Current Range ÁÁÁÁÁ Á ÁÁÁ Á ÁÁÁÁÁ VCE ICE ÁÁÁÁÁÁÁ Á ÁÁÁÁÁ Á ÁÁÁÁÁÁÁ −0.3 to 6.0 −150 to 150 ÁÁÁÁ Á ÁÁ Á ÁÁÁÁ V mA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Thermal Resistance Junction to Air ÁÁÁÁÁ ÁÁÁÁÁ R θJA ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 250 ÁÁÁÁ ÁÁÁÁ °C/W ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Operating Ambient Temperature Range (Note 2) ÁÁÁÁÁ ÁÁÁÁÁ TA ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ −40 to +85 ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Operating Junction Temperature Range ÁÁÁÁÁ ÁÁÁÁÁ TJ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ −40 to +125 ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature Range ÁÁÁÁÁ ÁÁÁÁÁ Tstg ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ −55 to +150 ÁÁÁÁ ÁÁÁÁ NOTES: 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. The maximum package power dissipation limit must not be exceeded. PD TJ(max) TA R JA 3. Latch−up Current Maximum Rating: ±150 mA per JEDEC standard: JESD78. 4. Moisture Sensitivity Level: MSL 1 per IPC/JEDEC standard: J−STD−020A.

http://onsemi.com ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit OSCILLATOR Switch On Time (current limit not asserted) ton 3.6 5.5 7.6 s Switch Minimum Off Time toff 1.0 1.45 1.9 s Maximum Duty Cycle D MAX 70 78 85 % Minimum Start−up Voltage (IO = 0 mA) Vstart − 0.8 0.95 V Minimum Start−up Voltage Temperature Coefficient (TA = −40°C to 85°C) Vstart − −1.6 − mV/°C Minimum Operation Hold Voltage (IO = 0 mA) Vhold 0.3 − − V Soft−Start Time (VOUT 0.8 V) tSS 0.3 2.0 − ms LX (PIN 5) Internal Switching N−Channel FET Drain Voltage VLX − − 6.0 V LX Pin On−State Sink Current (VLX = 0.4 V) Device Suffix: 19T1 27T1 30T1 33T1 40T1 50T1 ILX 110 130 130 130 130 130 145 180 190 200 210 215 mA Voltage Limit VLXLIM 0.45 0.65 0.9 V Off−State Leakage Current (VLX = 6.0 V, TA = −40°C to 85°C) ILKG − 0.5 1.0 µA CE (PIN 1) CE Input Voltage (VOUT = VSET x 0.96) High State, Device Enabled Low State, Device Disabled VCE(high) VCE(low) 0.9 0.3 V CE Input Current (Note 6) High State, Device Enabled (VOUT = VCE = 6.0 V) Low State, Device Disabled (VOUT = 6.0 V, VCE = 0 V) ICE(high) ICE(low) −0.5 −0.5 0.15 0.5 0.5 µA TOTAL DEVICE Output Voltage Device Suffix: 19T1 27T1 30T1 33T1 40T1 50T1 VOUT 1.853 2.632 2.925 3.218 3.900 4.875 1.9 2.7 3.0 3.3 4.0 5.0 1.948 2.768 3.075 3.383 4.100 5.125 V Output Voltage Temperature Coefficient (TA = −40°C to +85°C) Device Suffix: 19T1 27T1 30T1 33T1 40T1 50T1 VOUT 150 150 150 150 150 150 ppm/°C Operating Current 2 (VOUT = VCE = VSET +0.5 V, Note 5) IDD2 − 13 15 µA Off−State Current (VOUT = 5.0 V, VCE = 0 V, TA = −40°C to +85°C, Note 6) IOFF − 0.6 1.0 µA Operating Current 1 (VOUT = VCE = VSET x 0.96) Device Suffix: 19T1 27T1 30T1 33T1 40T1 50T1 IDD1 100 100 µA 5. VSET means setting of output voltage. 6. CE pin is integrated with an internal 10 MΩ pull−up resistor.

Figure 59. Typical Application Circuit

47 HC1

inductor will encounter in the application. The diode is the main source of loss in DC−DC converters. ceramic capacitor with value of 10 F should be suitable.

68 F / 10 V (852)−2305−1 168

10 F / 16 V (852)−2305−1 168

  1. Trace from L1 to Lx pin of U1
  2. Trace from L1 to anode pin of D1
  3. Trace from cathode pin of D1 to TP2

Figure 62. NCP1402 Evaluation Board Schematic Diagram

http://onsemi.com PACKAGE DIMENSIONS SOT23−5 (TSOP−5, SC59−5) SN SUFFIX CASE 483−02 ISSUE C 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. 4. A AND B DIMENSIONS DO NOT INCLUDE MOLD FLASH, PROTRUSIONS, OR GATE BURRS. DIM MIN MAX MIN MAX INCHESMILLIMETERS A 2.90 3.10 0.1142 0.1220 B 1.30 1.70 0.0512 0.0669 C 0.90 1.10 0.0354 0.0433 D 0.25 0.50 0.0098 0.0197 G 0.85 1.05 0.0335 0.0413 H 0.013 0.100 0.0005 0.0040 J 0.10 0.26 0.0040 0.0102 K 0.20 0.60 0.0079 0.0236 L 1.25 1.55 0.0493 0.0610 M 0 10 0 10 S 2.50 3.00 0.0985 0.1181 0.05 (0.002) 12 3 S A G L B D H C K M J __ _ _ 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 indemnify 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. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone : 81−3−5773−3850 NCP1402/D 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: orderlit@onsemi.com ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative.