S-8351B27MA-J4MT2G

S-8351/8352 Series www.ablic.com STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER © ABLIC Inc., 2002-2018 Rev.3.1_00 The S-8351/8352 Series is a CMOS step-up switching regulator controller which mainly consists of a reference voltage source, an oscillation circuit, a comparator and PFM control circuit. The PFM control circuit allows the duty ratio to be automatically switched according to the load (at light load : 50%, at high output current : 75%), enabling products with a low ripple over a wide range, high efficiency, and high output current (A, B, and D type). Products with a fixed duty ratio of 75% are also available (C type). The S-8351 Series can configure a step-up switching regulator with an external coil, capacitor, and diode. A protection circuit turns off the built-in MOS FET when the voltage at the CONT pin exceeds the limit to prevent it from being damaged. In addition to the above features, the small package and low current consumption, makes the S-8351 Series ideal for applications such as the power supply unit of portable equipment. The S-8352 Series, which features an external transistor, is suitable for applications requiring a high output current.  Features • Low voltage operation : Startup at 0.9 V min. (IOUT = 1 mA) guaranteed • Low current consumption : During operation 23.2 μA (VOUT = 3.3 V, typ.) During shutdown 0.5 μA (max.) • Duty ratio : 50 % / 75 % built-in auto-switching-type PFM control circuit (A, B, and D type) 75 % built-in fixed-type PFM control circuit (C type) • External parts : Coil, capacitor, and diode • Output voltage : Selectable in 0.1 V steps between 2.0 V to 6.5 V (A, B, and C type) Selectable in 0.1 V steps between 1.5 V to 6.5 V (D type) • Output voltage accuracy : ±2.4% • Shutdown function (A type) • VDD / VOUT separate type (D type) • External transistor type available (S-8352 Series) • Lead-free, Sn 100%, halogen-free*1 *1. Refer to “ Product Name Structure” for details.  Applications • Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs • Power supplies for audio equipment such as portable CD / MD players • Constant voltage power supplies for cameras, video equipment, and communications equipment • Power supplies for microcomputers  Packages • SOT-23-3 • SOT-23-5 • SOT-89-3 1 STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series  Block Diagrams 1. S-8351 Series (1) A Type (With shutdown function) CONT VOUT Protection circuit IC internal power supply VREF PFM control circuit + − VSS ON / OFF Figure 1 (2) B and C Types (Without shutdown function, VDD / VOUT non-separate type) CONT VOUT Protection circuit IC internal power supply VREF PFM control circuit + − VSS Figure 2 (3) D Type (VDD / VOUT separate type) CONT VDD VOUT IC internal power supply Protection circuit VREF PFM control circuit + − VSS Figure 3 2 STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series 2. S-8352 Series (1) A Type (With shutdown function) VOUT IC internal power supply VREF PFM control circuit EXT + − VSS ON / OFF Figure 4 (2) B and C Type (Without Shutdown function, VDD / VOUT non-separate type) VOUT IC internal power supply VREF EXT PFM control circuit + − VSS Figure 5 (3) D Type (VDD / VOUT separate type) VDD VOUT IC internal power supply EXT VREF PFM control circuit + − VSS Figure 6 3 STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series  Product Name Structure The product types, output voltage, and packages for the S-8351/8352 Series can be selected at the user’s request. Please refer to the “3. Product Name” for the definition of the product name, “4. Package” regarding the package drawings and “5. Product Name List” for the full product names. 1. Function List (1) Built-in Power MOS FET Type Table 1 Controll system Duty ratio [%] Switching frequency [kHz] Shutdown function VDD / VOUT separate type Package S-8351AxxMC PFM 50 / 75 100 Yes − SOT-23-5 S-8351BxxMA PFM 50 / 75 100 − − SOT-23-3 S-8351CxxMA PFM 75 100 − − SOT-23-3 S-8351CxxUA PFM 75 100 − − SOT-89-3 S-8351DxxMC PFM 50 / 75 100 − Yes SOT-23-5 Product Name (2) Application Applications requiring shutdown function Applications not requiring shutdown function Applications not requiring shutdown function Applications not requiring shutdown function Applications in which output voltage is adjusted by external resistor External Power MOS FET Type Table 2 Controll System Duty Ratio [%] Switching Frequency [kHz] Shutdown Function VDD / VOUT Separate Type Package S-8352AxxMC PFM 50 / 75 100 Yes − SOT-23-5 S-8352BxxMA PFM 50 / 75 100 − − SOT-23-3 S-8352CxxMA PFM 75 100 − − SOT-23-3 S-8352CxxUA PFM 75 100 − − SOT-89-3 S-8352DxxMC PFM 50 / 75 100 − Yes SOT-23-5 Product Name 4 Application Applications requiring shutdown function Applications not requiring shutdown function Applications not requiring shutdown function Applications not requiring shutdown function Applications in which output voltage is adjusted by external resistor STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series 2. Package and Function List by Product Type Table 3 Series Name A (Duty ratio 50% / 75% auto-switching type) A = 100 kHz B (Duty ratio 50% / 75% auto-switching type) B = 100 kHz C (Duty ratio 75% fixed type) C = 100 kHz D (Duty ratio 50% / 75% auto-switching type) D = 100 kHz S-8351 Series, S-8352 Series 3. Package Name Shutdown Function VDD / VOUT Separate Type (Abbreviation) Yes / No Yes / No Type MC Yes No MA No No MA / UA No No MC No Yes Product Name (1) SOT-23-3 S-835 x x xx MA - xxx T2 G Environmental code G : Lead-free (for details, please contact our sales office) IC direction in tape specifications *1 Product name (abbreviation) *2 Package name (abbreviation) MA : SOT-23-3 Output voltage 15 to 65 (e.g. When the output voltage is 1.5 V, it is expressed as 15.) Product type A : With shutdown function, B : 50% / 75% automatic duty ratio switching type, C : 75% duty ratio fixed type, D : VDD / VOUT separate type, fOSC = 100 kHz fOSC = 100 kHz fOSC = 100 kHz fOSC = 100 kHz Series name 1 : Built-in power MOS FET 2 : External power MOS FET *1. Refer to the tape specifications. *2. Refer to the Table 4, 5 in the “5. Product Name List”. 5 STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series (2) SOT-23-5, SOT-89-3 S-835 x x xx xx - xxx T2 x Environmental code U : Lead-free (Sn 100%), halogen-free G : Lead-free (for details, please contact our sales office) IC direction in tape specifications *1 Product name (abbreviation) *2 Package name (abbreviation) MC : SOT-23-5 UA : SOT-89-3 Output voltage 15 to 65 (e.g. When the output voltage is 1.5 V, it is expressed as 15.) Product type A : With shutdown function, B : 50% / 75% automatic duty ratio switching type, C : 75% duty ratio fixed type, D : VDD / VOUT separate type, fOSC = 100 kHz fOSC = 100 kHz fOSC = 100 kHz fOSC = 100 kHz Series name 1 : Built-in power MOS FET 2 : External power MOS FET *1. Refer to the tape specifications. *2. Refer to the Table 4, 5 in the “5. 4. Package Package Name SOT-23-3 SOT-23-5 SOT-89-3 6 Product Name List”. Package MP003-A-P-SD MP005-A-P-SD UP003-A-P-SD Drawing Code Tape MP003-A-C-SD MP005-A-C-SD UP003-A-C-SD Reel MP003-A-R-SD MP005-A-R-SD UP003-A-R-SD STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series 5. Product Name List (1) S-8351 Series Table 4 Output voltage S-8351AxxMC Series S-8351BxxMA Series S-8351CxxMA Series S-8351CxxUA Series S-8351DxxMC Series 1.5 V 2.0 V 2.2 V 2.5 V 2.6 V 2.7 V 2.8 V 3.0 V 3.1 V 3.2 V 3.3 V 3.5 V 4.0 V 4.5 V 4.6 V 4.7 V 5.0 V 5.5 V 5.6 V 6.0 V − S-8351A20MC-J2FT2x S-8351A22MC-J2HT2x S-8351A25MC-J2KT2x S-8351A26MC-J2LT2x S-8351A27MC-J2MT2x S-8351A28MC-J2NT2x S-8351A30MC-J2PT2x − S-8351A32MC-J2RT2x S-8351A33MC-J2ST2x S-8351A35MC-J2UT2x S-8351A40MC-J2ZT2x S-8351A45MC-J3ET2x − S-8351A47MC-J3GT2x S-8351A50MC-J3JT2x S-8351A55MC-J3OT2x S-8351A56MC-J3PT2x S-8351A60MC-J3TT2x − S-8351B20MA-J4FT2G − S-8351B25MA-J4KT2G − S-8351B27MA-J4MT2G − S-8351B30MA-J4PT2G − − S-8351B33MA-J4ST2G − − S-8351B45MA-J5ET2G S-8351B46MA-J5FT2G − S-8351B50MA-J5JT2G S-8351B55MA-J5OT2G − − − − − − − − − − − − S-8351C33MA-J6ST2G − − − − − − − − − − − − S-8351C25UA-J6KT2x − − − S-8351C30UA-J6PT2x S-8351C31UA-J6QT2x S-8351C32UA-J6RT2x S-8351C33UA-J6ST2x S-8351C35UA-J6UT2x − − − − S-8351C50UA-J7JT2x − − − S-8351D15MC-J8AT2x S-8351D20MC-J8FT2x − − − − − S-8351D30MC-J8PT2x − − − − S-8351D40MC-J8ZT2x − − − S-8351D50MC-J9JT2x − − S-8351D60MC-J9TT2x (2) S-8352 Series Table 5 Output voltage S-8352AxxMC Series S-8352BxxMA Series S-8352CxxUA Series S-8352DxxMC Series 2.0 V 2.5 V 3.0 V 3.1 V 3.2 V 3.3 V 3.5 V 3.7 V 4.0 V 4.6 V 4.7 V 5.0 V 5.4 V 5.6 V − S-8352A25MC-K2KT2x S-8352A30MC-K2PT2x − S-8352A32MC-K2RT2x S-8352A33MC-K2ST2x S-8352A35MC-K2UT2x S-8352A37MC-K2WT2x S-8352A40MC-K2ZT2x S-8352A46MC-K3FT2x S-8352A47MC-K3GT2x S-8352A50MC-K3JT2x S-8352A54MC-K3NT2x − − − S-8352B30MA-K4PT2G − − − − − − − − S-8352B50MA-K5JT2G − − − − S-8352C30UA-K6PT2x S-8352C31UA-K6QT2x S-8352C32UA-K6RT2x S-8352C33UA-K6ST2x − − − − − S-8352C50UA-K7JT2x − S-8352C56UA-K7PT2x S-8352D20MC-K8FT2x − S-8352D30MC-K8PT2x − − S-8352D33MC-K8ST2x − − − − − − − − Remark 1. Please contact the ABLIC Inc. marketing department for products with an output voltage other than those specified above. 2. x: G or U 3. Please select products of environmental code = U for Sn 100%, halogen-free products. 7 STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series  Pin Configurations Table 6 S-8351 Series B and C Types (Without shutdown function, VDD / VOUT non-separate type) SOT-23-3 Top view 1 2 3 Figure 7 Pin No. Symbol Pin Description 1 2 3 VOUT VSS CONT Output voltage pin and IC power supply pin GND pin External inductor connection pin (Open-drain output) Table 7 S-8352 Series B and C Types (Without shutdown function, VDD / VOUT non-separate type) Pin No. 1 2 3 Top view 4 Pin No. 2 Figure 8 3 Symbol Pin Description Shutdown pin “H”: Normal operation (Step-up operating) “L”: Step-up stopped (Entire circuit stopped) 2 VOUT Output voltage pin and IC power supply pin NC*1 3 No connection 4 VSS GND pin 5 CONT External inductor connection pin (Open-drain output) *1. The NC pin indicates electrically open. 1 1 Pin Description Output voltage pin and IC power supply pin GND pin External transistor connection pin (CMOS output) Table 8 S-8351 Series A Type (With shutdown function, VDD / VOUT non-separate type) SOT-23-5 5 Symbol VOUT VSS EXT ON / OFF Table 9 S-8352 Series A Type (With shutdown function, VDD / VOUT non-separate type) Pin No. Symbol Pin Description Shutdown pin “H”: Normal operation (Step-up operating) “L”: Step-up stopped (Entire circuit stopped) 2 VOUT Output voltage pin and IC power supply pin NC*1 3 No connection 4 VSS GND pin 5 EXT External transistor connection pin (CMOS output) *1. The NC pin indicates electrically open. 1 8 ON / OFF STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series Table 10 S-8351 Series D Type (Without shutdown function, VDD / VOUT separate type) Pin No. Symbol Pin Description 1 VOUT Output voltage pin 2 VDD IC power supply pin NC*1 3 No connection 4 VSS GND pin 5 CONT External inductor connection pin (Open-drain output) *1. The NC pin indicates electrically open. Table 11 S-8352 Series D Type (Without shutdown function, VDD / VOUT separate type) Pin No. Symbol Pin Description 1 VOUT Output voltage pin 2 VDD IC power supply pin NC*1 3 No connection 4 VSS GND pin 5 EXT External transistor connection pin (CMOS output) *1. The NC pin indicates electrically open. Table 12 S-8351 Series C Type (Without shutdown function, VDD / VOUT non-separate type) SOT-89-3 Top view 1 2 Pin No. Symbol Pin Description 1 2 3 VSS VOUT CONT GND pin Output voltage pin and IC power supply pin External inductor connection pin (Open-drain output) 3 Figure 9 Table 13 S-8352 Series C Type (Without shutdown function, VDD / VOUT non-separate type) Pin No. Symbol 1 2 3 VSS VOUT EXT Pin Description GND pin Output voltage pin and IC power supply pin External transistor connection pin (CMOS output) 9 STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series  Absolute Maximum Ratings Table 14 Item VOUT pin voltage ON / OFF pin voltage VOUT VON / OFF *1 *2 VDD pin voltage CONT pin voltage EXT pin voltage (Ta = 25°C unless otherwise specified) Absolute maximum rating Unit VSS − 0.3 to VSS + 12 V Symbol VDD VCONT D type Others VEXT CONT pin current EXT pin current ICONT IEXT SOT-23-3 Power dissipation SOT-23-5 PD SOT-89-3 Operating ambient temperature Topr Storage temperature Tstg *1. With shutdown function *2. For VDD / VOUT separate type *3. When mounted on board [Mounted board] (1) Board size : 114.3 mm × 76.2 mm × t1.6 mm (2) Board name : JEDEC STANDARD51-7 VSS − 0.3 to VSS + 12 V VSS − 0.3 to VSS + 12 VSS − 0.3 to VSS + 12 VSS − 0.3 to VDD + 0.3 VSS − 0.3 to VOUT + 0.3 300 ±50 150 (When not mounted on board) 430*3 250 (When not mounted on board) 600*3 500 (When not mounted on board) 1000*3 − 40 to + 85 − 40 to + 125 V V V V mA mA mW mW mW mW mW mW °C °C Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. (1) When mounted on board (2) When not mounted on board 600 1000 Power dissipation (PD) [mW] Power dissipation (PD) [mW] 1200 SOT-89-3 800 SOT-23-5 600 SOT-23-3 400 200 0 0 50 100 150 Ambient temperature (Ta) [°C] Figure 10 10 500 SOT-89-3 400 SOT-23-5 300 SOT-23-3 200 100 0 0 50 100 150 Ambient temperature (Ta) [°C] Power Dissipation of Packages STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series  Electrical Characteristics (1) S-8351 Series Table 15 (1 / 2) Item Symbol Condition Output voltage VOUT − Input voltage Operation start voltage VIN VST1 Oscillation start voltage VST2 Input current during no- load IIN Current consumption 1 ISS1 Current consumption 2 ISS2 − IOUT = 1 mA No external parts, Voltage applied to VOUT, CONT pin pulled up to VOUT with 300 Ω resistor S-8351x15 to 29 IOUT = 0 mA S-8351x30 to 49 S-8351x50 to 65 S-8351x15 to 19 S-8351x20 to 29 S-8351x30 to 39 VOUT = VOUT(S) × 0.95 S-8351x40 to 49 S-8351x50 to 59 S-8351x60 to 65 S-8351x15 to 19 S-8351x20 to 29 S-8351x30 to 39 VOUT = VOUT(S) + 0.5 V S-8351x40 to 49 S-8351x50 to 59 S-8351x60 to 65 Current consumption during shutdown (With shutdown function) ISSS Switching current ISW Switching transistor leakage current ISWQ CONT pin limit voltage Line regulation Load regulation Output voltage temperature coefficient VCONTLMT ΔVOUT1 ΔVOUT2 ∆VOUT ∆Ta • VOUT Oscillation frequency fOSC Duty ratio 1 Duty1 Duty ratio 2 (For A, B, D type) Duty2 (Ta = 25°C unless otherwise specified) Measurement Min. Typ. Max. Unit circuit VOUT(S) VOUT(S) VOUT(S) V 1 × 0.976 × 1.024 − − 10 V 1 − − 0.9 V 1 − − 0.8 V 2 − − − − − − − − − − − − − − − 8.5 9.0 9.5 9.6 15.7 23.2 32.0 42.1 54.9 2.3 2.5 2.7 2.9 3.1 3.3 − − − 16.0 26.2 38.6 53.3 70.2 91.5 3.5 3.8 4.1 4.4 4.7 5.1 μA μA μA μA μA μA μA μA μA μA μA μA μA μA μA 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 − − 0.5 μA 2 S-8351x15 to 19 S-8351x20 to 24 S-8351x25 to 29 VCONT = 0.4 V S-8351x30 to 39 S-8351x40 to 49 S-8351x50 to 59 S-8351x60 to 65 No external parts, VCONT = VOUT = 10 V, VON / OFF = 0 V 50.2 65.0 78.5 90.7 110.9 125.7 135.2 91.2 118.2 142.7 164.8 201.6 228.6 245.8 − − − − − − − mA mA mA mA mA mA mA 2 2 2 2 2 2 2 − − 0.5 μA 2 Apply to CONT pin, Confirm oscillation stop VIN = VOUT(S) × 0.4 to × 0.6 IOUT = 10 μA to VOUT(S) / 250 × 1.25 − − − 0.9 30 30 − 60 60 V mV mV 2 1 1 Ta = − 40°C to + 85°C − ±50 − ppm / °C 1 90 100 110 kHz 2 70 75 80 % 2 − 50 − % 1 VON / OFF = 0 V VOUT = VOUT(S) × 0.95, Measured waveform at CONT pin VOUT = VOUT(S) × 0.95, Measured waveform at CONT pin Measured waveform at CONT pin at light load 11 STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.3.1_00 S-8351/8352 Series Table 15 (2 / 2) Item Symbol ISH ISL VON / OFF = 0 V VSL1 VSL2 ON / OFF pin input current (With shutdown function) Efficiency Condition VOUT = VOUT(S) × 0.95, Measured oscillation at CONT pin VOUT = VOUT(S) × 0.95, At VOUT≥1.5 V Judged oscillation stop at At VOUT