CAT3200HU2 ONSEMI | Alldatasheet
Document overview
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- PDF pages: 9
Technical content
Features
- Constant High Frequency (2 MHz) Operation
- 100 mA Output Current
- Regulated Output V oltage (5 V Fixed or Adjustable)
- Low Quiescent Current (1.7 mA Typ.)
- Soft Start, Slew Rate Control
- Reverse Leakage Protection
- Thermal Overload Shutdown Protection
- Low Value External Capacitors (1 /C0109F)
- Foldback Current Overload Protection
- Shutdown Current less than 1 /C0109A
- 8−pad UDFN 2 mm x 2 mm Package
- These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant Typical Applications
- 3 V to 5 V Boost Conversion
- 2.5 V to 3.3 V Boost Conversion
- White LED Driver
- Handheld Portable Devices http://onsemi.com UDFN−8 HU2 SUFFIX CASE 517AW (Top View)
1 VOUT
CA = Product Name X = Assembly Location Y = Production Year (Last Digit) M = Production Month (1−9, A, B, C) CAX YM MARKING DIAGRAM PIN CONNECTIONS See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet.
ORDERING INFORMATION
5 V Output
Figure 1. Typical Application Circuits Table 1. ORDERING INFORMATION
- For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D. Table 2. PIN FUNCTION DESCRIPTION
1 CPOS Positive connection for the flying capacitor
2 VIN Input power supply
3 CNEG Negative connection for the flying capacitor
4 PGND Power ground
5 SGND Ground reference for all voltages
6 SHDN Shutdown control logic input (Active LOW)
7 FB Feedback to set the output voltage
8 VOUT Regulated output voltage
Table 3. ABSOLUTE MAXIMUM RATINGS
Table 4. RECOMMENDED OPERATING CONDITIONS Table 5. ELECTRICAL CHARACTERISTICS
injected back into the power supply. SHDN pin should not be allowed to float. (tantalum or aluminum) flying capacitor. is the regulated output voltage to power the load. capacitor will directly influence the output ripple voltage. fixed output mode, connect the FB pin directly to GND. pump to boost the voltage at IN to a regulated output voltage. must always be driven with a valid logic level. or damage until a short−circuit on VOUT is removed. voltages greater than twice the available input voltage. Figure 20 shows the required voltage divider connection.
1.27 V /C00421
range from several k/C0087 up to 1 M/C0087. Figure 20. Programming the Adjustable Output
1.27 VR1
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Application Information
Ceramic capacitors of different dielectric materials lose their capacitance with higher temperature and voltage at different rates. For example, a capacitor made of X5R or X7R material will retain most of its capacitance from −40°C to 85°C whereas a Z5U or Y5V style capacitor will lose considerable capacitance over that range. Z5U and Y5V capacitors may also have voltage coefficient causing them to lose 60% or more of their capacitance when the rated voltage is applied. When comparing different capacitors it is often useful to consider the amount of achievable capacitance for a given case size rather than discussing the specified capacitance value. For example, over rated voltage and temperature conditions, a 1 /C0109F, 10 V , Y5V ceramic capacitor in an 0603 case may not provide any more capacitance than a 0.22 /C0109F, 10 V , X7R available in the same 0603 case. For many CAT3200HU2 applications these capacitors can be considered roughly equivalent. Output Ripple The output ripple voltage is related to the output capacitor size COUT and ESR (equivalent series resistance) and can be calculated using the formula below: VR /C0043ILOAD /C0324(2 /C0064FOSC /C0064COUT) /C00412 /C0064ESRCOUT /C0064ILOAD where FOSC is the switching frequency. Efficiency The efficiency is basically set by the ratio between the input voltage VIN and the output voltage VOUT, and can be calculated using the formula below: Efficiency [%] /C0043100 /C0064POUT /C0324PIN /C0043100 /C0064VOUT /C0064ILOAD /C0324(VIN /C0064IIN) where FOSC is the switching frequency, and IIN /C0043IGND /C00412 /C0064ILOAD If we neglect the Ground current (I GND), then the efficiency is basically equal to: Efficiency [%] /C0094100 /C0064VOUT /C0324(2 /C0064VIN)
http://onsemi.com PACKAGE DIMENSIONS UDFN8, 2x2 CASE 517AW−01 ISSUE O L E PIN #1 INDEX AREA PIN #1 IDENTIFICATION DETAIL A D b e A TOP VIEW SIDE VIEW DETAIL A BOTTOM VIEW Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MO-229. SYMBOL MIN NOM MAX A 0.45 0.50 0.55 A1 0.00 0.02 0.05 b 0.18 0.25 0.30 D 1.90 2.00 2.10 D2 1.50 1.60 1.70 E 2.00 E2 0.80 0.90 1.00 e 1.90
0.50 BSC
2.10 L 0.20 0.30 0.45 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, direct ly 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. CAT3200HU2/D PUBLICATION ORDERING INFORMATION N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5773−3850 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: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative