XC9236A33DMR Torex Semiconductor Ltd, XC9236A33DMR Datasheet
XC9236A33DMR
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XC9236A33DMR Summary of contents
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XC9235/XC9236/XC9237 600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters ■GENERAL DESCRIPTION The XC9235/XC9236/XC9237 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.42Ω P-channel MOS driver transistor and 0.52ΩN-channel MOS switching transistor, designed to allow the use ...
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XC9235/XC9236/XC9237 ■PIN CONFIGURATION Lx VOUT VIN VSS CE/MODE SOT-25 (Top View) ■PIN ASSIGNMENT PIN NUMBER SOT-25 USP-6C/USP-6EL 2/33 Series 1 Lx VIN 6 VSS ...
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CLASSIFICATION ●Ordering Information *1 XC9235①②③④⑤⑥-⑦ XC9236①②③④⑤⑥-⑦ XC9237①②③④⑤⑥-⑦ DESIGNATOR DESCRIPTION Fixed Output voltage (V Functional selection ① Adjustable Output voltage (FB) Functional selection Fixed Output Voltage (V ) OUT ②③ Adjustable Output ...
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XC9235/XC9236/XC9237 ■BLOCK DIAGRAM ●XC9235 / XC9236 / XC9237 ・XC9235/XC9236/XC9237 Aシリーズ A Series Phase Compensation Current Feedback VOUT Current Limit CFB R2 Error Amp. PWM Comparator FB Logic R1 VIN VSHORT Vref with PWM/PFM Soft Start, Selector CE UVLO Cmp UVLO ...
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CHARACTERISTICS XC9237A18Cxx, V =1.8V, f =1.2MHz, Ta=25℃ OUT OSC PARAMETER SYMBOL Output Voltage V OUT Operating Voltage Range V IN Maximum Output Current I OUTMAX UVLO Voltage V UVLO Supply Current I DD Stand-by Current I STB Oscillation Frequency ...
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XC9235/XC9236/XC9237 ■ELECTRICAL CHARACTERISTICS (Continued) XC9237A18Dxx, V =1.8V, f =3.0MHz, Ta=25℃ OUT OSC PARAMETER SYMBOL Output Voltage V OUT Operating Voltage Range V IN Maximum Output Current I OUTMAX UVLO Voltage V UVLO Supply Current I DD Stand-by Current I STB ...
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CHARACTERISTICS (Continued) XC9237B(C)(E)(G)18Cxx, V =1.8V, f OUT PARAMETER SYMBOL Output Voltage V OUT Operating Voltage Range (B/C series Operating Voltage Range (E/G series) Maximum Output Current I OUTMAX UVLO Voltage V UVLO Supply Current I DD Stand-by ...
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XC9235/XC9236/XC9237 ■ELECTRICAL CHARACTERISTICS (Continued) XC9237B(C)(E)(G)18Dxx, V =1.8V, f OUT PARAMETER SYMBOL Output Voltage V OUT Operating Voltage Range (B/C series Operating Voltage Range (E/G series) Maximum Output Current I OUTMAX UVLO Voltage V UVLO Supply Current I DD ...
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CHARACTERISTICS (Continued) ●XC9237D(F)08Cxx, FB Type, f =1.2MHz, Ta=25℃ OSC PARAMETER SYMBOL FB Voltage V FB Operating Voltage Range V IN Maximum Output Current I OUTMAX UVLO Voltage V UVLO Supply Current I DD Stand-by Current I STB Oscillation Frequency ...
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XC9235/XC9236/XC9237 ■ELECTRICAL CHARACTERISTICS (Continued) ●XC9237D(F)08Dxx, FB, f =3.0MHz, Ta=25℃ OSC PARAMETER SYMBOL FB Voltage V FB Operating Voltage Range V IN Maximum Output Current I OUTMAX UVLO Voltage V UVLO Supply Current I DD Stand-by Current I STB Oscillation Frequency ...
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CHARACTERISTICS (Continued) ●PFM Switching Current ( Oscillation Frequency and Setting Voltage PFM SETTING VOLTAGE MIN. V 140 ≦1.2V OUT(E) 1.2V＜V 130 ≦1.75V OUT(E) 1.8V≦V 120 OUT(E) ●Input Voltage (V ) for Measuring PFM Duty Limit (DTY IN ...
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XC9235/XC9236/XC9237 ■TYPICAL APPLICATION CIRCUIT ●XC9235/9236/9237A Series (Output Voltage Fixed) V OUT L 600mA C L (ceramic) ●XC9235/9236/9237D, F Series (Output Voltage External Setting) <Setting for Output Voltage> Output voltage can be set externally by adding two ...
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DESCRIPTION The XC9235/XC9236/XC9237 series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator, phase compensation circuit, output voltage adjustment resistors, P-channel MOS driver transistor, N-channel MOS switching transistor for the synchronous switch, current limiter circuit, ...
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XC9235/XC9236/XC9237 ■OPERATIONAL DESCRIPTION (Continued) <Short-Circuit Protection> The short-circuit protection circuit monitors the internal R1 and R2 divider voltage from the V the block diagram shown in the previous page). In case where output is accidentally shorted to the Ground and ...
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DESCRIPTION (Continued) High Speed Discharge＞ ＜C L XC9235B(C)(D)(E)(F)(G)/ XC9236B(C)(D)(E)(F)(G)/ XC9237B(C)(D)(E)(F)(G) series can quickly discharge the electric charge at the output capacitor (C ) when a low signal to the CE pin which enables a whole IC circuit put into ...
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XC9235/XC9236/XC9237 ■OPERATIONAL DESCRIPTION (Continued) <CE/MODE Pin Function> The operation of the XC9235/XC9236/XC9237 series will enter into the shut down mode when a low level signal is input to the CE/MODE pin. During the shutdown mode, the current consumption of the ...
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DESCRIPTION (Continued) ＜Soft Start＞ Soft start time is available in two options via product selection. The A,C,D,and E types of XC9235/XC9236/XC9237 series provide 1.0ms (TYP). The B,F, and G types of XC9235/ XC9236/XC9237 series provide 0.25ms (TYP). However, for ...
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XC9235/XC9236/XC9237 ■NOTE ON USE 1. The XC9235/XC9236/XC9237 series is designed for use with ceramic output capacitors. If, however, the potential difference is too large between the input voltage and the output voltage, a ceramic capacitor may fail to absorb the ...
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ON USE (Continued) 14. In order to stabilize V ’s voltage level and oscillation frequency, we recommend that a by-pass capacitor (C IN connected as close as possible to the V 15. High step-down ratio and very light load ...
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XC9235/XC9236/XC9237 ■NOTE ON USE (Continued) ●Instructions of pattern layouts 1. In order to stabilize V voltage level, we recommend that a by-pass capacitor (C IN the V & V pins Please mount each external component as close ...
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CIRCUITS < Circuit No.1 > ・A/B/C/E/G series L A VIN Lx CE/MODE VOUT CIN VSS ※ External Components L : 1.5uH(NR3015) 3.0MHz 4.7uH(NR4018) 1.2MHz CIN : 4.7μF(ceramic) CL :10μF(ceramic) < Circuit No.2 > A VIN Lx VOUT CE/MODE (FB) ...
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XC9235/XC9236/XC9237 ■TYPICAL PERFORMANCE CHARACTERISTICS (1) Efficiency vs. Output Current XC9237A18C L=4.7μH (NR4018), CIN=4.7μF, CL=10μF PWM/PFM Automatic Sw itching Control 100 90 80 VIN= 4. 3.6V 50 2. Output Current: ...
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PERFORMANCE CHARACTERISTICS (Continued) (4) Oscillation Frequency vs. Ambient Temperature XC9237A18C L=4.7μH (NR4018), CIN=4.7μF, CL=10μF 1.5 1.4 1.3 VIN=3.6V 1.2 1.1 1.0 0.9 0.8 -50 - Ambient Temperature ℃ ) Ambient Temperature: Ta (℃) (5) ...
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XC9235/XC9236/XC9237 ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (8) CE "H" Voltage vs. Ambient Temperature XC9237A18D 1.0 0.9 0.8 0.7 VIN=5.0V 0.6 0.5 0.4 0.3 VIN=3.6V VIN=2.4V 0.2 0.1 0.0 -50 - Ambient Temperature ℃ ) Ambient Temperature: ...
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PERFORMANCE CHARACTERISTICS (Continued) (12) XC9235B/36B/37B Rise Wave Form XC9237B12C L=4.7μH (NR4018), CIN=4.7μF, CL=10μF VIN=5.0V IOUT=1.0mA VOUT：0.5V/div CE：0.0V⇒1.0V 100μs/div (13) XC9235B/36B/37B Soft-Start Time vs. Ambient Temperature XC9237B12C L=4.7μH(NR4018), CIN=4.7μF, CL=10μF 500 400 300 200 VIN=5.0V 100 IOUT=1.0mA 0 -50 -25 ...
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XC9235/XC9236/XC9237 ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (15) Load Transient Response XC9237A18C L=4.7μH (NR4018), C =4.7μF (ceramic =3.6V (PWM/PFM Automatic Switching Control =1mA → 100mA OUT 1ch: I OUT 2ch V : 50mV/div ...
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PERFORMANCE CHARACTERISTICS (Continued) (15) Load Transient Response (Continued) XC9237A18C L=4.7μH (NR4018), C =4.7μF (ceramic =3.6V, V =1.8V (PWM Control =1mA → 100mA OUT 1ch: I OUT 2ch V : 50mV/div OUT 50μs/div I ...
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XC9235/XC9236/XC9237 ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (15) Load Transient Response (Continued) XC9237A18D L=1.5μH (NR3015), C =4.7μF (ceramic =3.6V (PWM/PFM Automatic Switching Control =1mA → 100mA OUT 1ch: I OUT 2ch V : ...
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PERFORMANCE CHARACTERISTICS (Continued) (15) Load Transient Response (Continued) XC9237A18D L=1.5μH (NR3015), C =4.7μF (ceramic =3.6V, V =1.8V (PWM Control =1mA → 100mA OUT 1ch: I OUT 2ch V : 50mV/div OUT 50μs/div I ...
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XC9235/XC9236/XC9237 ■PACKAGING INFORMATION ●SOT-25 ●USP-6C Reference Pattern Layout 2.4 0. 0.05 0.05 1.0 30/33 Series ●USP-6C ●USP-6C Reference Metal Mask Design 0. ...
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INFORMATION (Continued) ●USP-6EL * A part of the pin may appear from the side of the package because of it’s structure, but reliability of the package and strength will not be changed below the standard. Reference Pattern Layout USP-6EL ...
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XC9235/XC9236/XC9237 ■MARKING RULE ●SOT-25, USP-6C, USP-6EL SOT-25 (TOP VIEW) USP-6C/USP-6EL USP-6C/USP-6EL (Top View) (TOP VIEW) 32/33 Series ① represent product series PRODUCT XC9235 SERIES ② represents ...
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... Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this datasheet may be copied or reproduced without the prior permission of TOREX SEMICONDUCTOR LTD. XC9235/XC9236/XC9237 Series 33/33 ...