R1224N122G RICOH [RICOH electronics devices division], R1224N122G Datasheet
R1224N122G
Related parts for R1224N122G
R1224N122G Summary of contents
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PWM/VFM step-down DC/DC Converter OUTLINE The R1224N Series are CMOS-based PWM step-down DC/DC Converter controllers with low supply current. Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a phase ...
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R1224N BLOCK DIAGRAM EXT EXT 2 *Fixed Output Voltage Type OSC Amp Vref PWM/VFM Soft Start CONTROL Chip Enable Protection UVLO 2 GND *Adjustable Output Voltage Type OSC Amp Vref Soft Start ...
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SELECTION GUIDE In the R1224N Series, the output voltage, the oscillator frequency, the optional function, and the taping type for the ICs can be selected at the user's request. The selection can be made with designating the part number as ...
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R1224N PIN CONFIGURATIO PIN DESCRIPTION Pin No Symbol ABSOLUTE MAXIMUM RATINGS Symbol V V Supply Voltage EXT Pin Output Voltage EXT V CE Pin Input Voltage OUT ...
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ELECTRICAL CHARACTERISTICS • R1224Nxx2X (X=E/F/G/H/L/M) except R1224N102X Symbol Item V Operating Input Voltage IN V Step-down Output Voltage OUT ∆ Step-down Output Voltage OUT ∆ Topt Temperature Coefficient fosc Oscillator Frequency ∆ fosc/ Oscillator Frequency ∆ Topt Temperature ...
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R1224N • R1224N102X (X=G/H/M) Symbol Item V Operating Input Voltage IN V Feedback Voltage FB ∆ Feedback Voltage FB ∆ Topt Temperature Coefficient fosc Oscillator Frequency ∆ fosc/ Oscillator Frequency ∆ Topt Temperature Coefficient I Supply Current 1 ...
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TYPICAL APPLICATION AND APPLICATION HINTS (1) Fixed Output Voltage Type (R1224Nxx2E/F/G/H/L/M except xx=10 PMOS: HAT1044M (Hitachi) SD1 : RB063L-30 (Rohm 10µF (Ceramic Type 10Ω (2) Adjustable Output Type (R1224N102G/H/M) Example: Output Voltage=3.2V C1 ...
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R1224N When you use these ICs, consider the following issues; ⋅As shown in the block diagram, a parasitic diode is formed in each terminal, each of these diodes is not formed for load current, therefore do not use it in ...
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How to Adjust Output Voltage and about Phase Compensation As for Adjustable Output type, feedback pin (V Output Voltage following equation: OUT V : R2+R4 OUT FB =V ×(R2+R4)/R2 V OUT FB Thus, with changing ...
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R1224N OPERATION of step-down DC/DC converter and Output Current The step-down DC/DC converter charges energy in the inductor when Lx transistor is ON, and discharges the energy from the inductor when Lx transistor is OFF and controls with less energy ...
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In the continuous mode, when Equation 1 is solved for ton and assumed that the solution is tonc, tonc=T×V /V ..................................................................................... Equation 2 OUT IN When ton<tonc, the mode is the discontinuous mode, and when ton=tonc, the mode is the ...
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R1224N External Components 1. Inductor Select an inductor that peak current does not exceed ILmax. If larger current than allowable current flows, magnetic saturation occurs and make transform efficiency worse. When the load current is definite, the smaller value of ...
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TIMING CHART V IN Input Voltage Rising Time CE V Set Output OUT Voltage EXT V Set Output OUT Voltage V OUT Soft Start The timing chart shown above describes the changing process of input voltage rising, stable operating, operating ...
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R1224N TEST CIRCUITS Output Voltage, Oscillator Frequency, CE “H” Input Voltage, CE “L” Input Voltage, Soft-start time Oscilloscope V Supply Current 1 2 R1224N GND V OUT EXT “H” Output Current 4 EXT 2 A GND ...
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TYPICAL CHARACTERISTICS 1)Output Voltage vs. Output Current (*Note) R1224N182E L=10µH 1.850 1.830 1.810 1.790 V 3.3V IN 1.770 1.750 0 Output Current l R1224N182G 1.850 1.830 1.810 1.790 V 3. 1.770 ...
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R1224N R1224N332E 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 V 4. 3.22 3.20 0 Output Current l R1224N332G 3.400 3.380 3.360 3.340 3.320 3.300 3.280 V 4.8V IN 3.260 V 12V IN ...
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R1224N332L L=27µH 3.400 3.380 3.360 3.340 3.320 3.300 3.280 3.260 V 4.8V IN 3.240 3.220 3.200 0 100 1000 Output Current l (mA) OUT R1224N332M (V =5V) IN 3.35 3.34 3.33 3.32 3.31 3.30 0 ...
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R1224N R1224N502F 5.100 5.080 5.060 5.040 5.020 5.000 4.980 V 6.5V 4.960 IN 4.940 V 10V IN 4.920 4.900 0 Output Current l R1224N502G (V 5.05 5.04 5.03 5.02 5.01 5.00 0 Output Current l R1224N502H ...
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R1224N502M 5.100 5.080 V 6.5V IN 5.060 V 12V IN 5.040 V 15V IN 5.020 5.000 4.980 4.960 4.940 4.920 4.900 0 Output Current l 2) Efficiency vs. Output Current (*Note) R1224N182F (V =3.3V) IN 100 90 80 ...
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R1224N R1224N182G (V =12V) IN 100 0 Output Current l R1224N182H (V =5.0V) IN 100 0 ...
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R1224N182M (V =3.3V) CDRH127-27µH IN 100 0 100 Output Current l (mA) OUT R1224N182M (V =12V) CDRH127-27µH IN 100 ...
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R1224N R1224N332F (V =4.8V) IN 100 0 Output Current l R1224N332G (V =4.8V) IN 100 0 ...
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R1224N332H (V =12V) CDRH127-10µH IN 100 0 100 Output Current l (mA) OUT R1224N332H (V =15V) CDRH127-10µH IN 100 ...
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R1224N R1224N332M (V =4.8V) IN 100 0 Output Current l R1224N332M (V 100 Output Current ...
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R1224N502E (V =10V) CDRH127-10µH IN 100 0 100 Output Current l (mA) OUT R1224N502F (V =10V) CDRH127-10µH IN 100 ...
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R1224N R1224N502G (V =12V) IN 100 0 Output Current l R1224N502H (V =6.5V) IN 100 0 ...
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R1224N502L (V =10V) IN 100 0 Output Current l R1224N502M (V =12V) IN 100 0 Output ...
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R1224N 3) Ripple Voltage vs. Output Current R1224N182E 3. 0 Output Current I R1224N182G 3. 12V ...
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R1224N332E L=10µ 4. 0 100 1000 Output Current I (mA) OUT R1224N332G L=10µ 4. 12V 15V IN ...
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R1224N R1224N502E 6. 10V 0 Output Current l R1224N502G 6. 12V 15V ...
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Output Voltage vs. Input Voltage R1224N182E L=10µH 2.00 1.95 1.90 1.85 1.80 1.75 1.70 1mA 500mA 1.65 1. Input Voltage V R1224N182G 2.00 1.95 1.90 1.85 1.80 1.75 1.70 -1mA -500mA 1.65 1. ...
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R1224N R1224N332E 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 1mA 3.24 500mA 3.22 3. Input Voltage V R1224N332G 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 -1mA 3.24 -500mA 3.22 3. Input Voltage V R1224N332L ...
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R1224N502E L=10µH 5.20 5.15 5.10 5.05 5.00 4.95 4.90 1mA 500mA 4.85 4. Input Voltage V (V) IN R1224N502G L=10µH 5.20 5.15 -1mA -500mA 5.10 5.05 5.00 4.95 4.90 4.85 4. Input ...
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R1224N 5) Output Voltage vs. Temperature R1224N332E 3.33 3.32 3.31 3.30 3.29 3.28 3.27 -40 -15 10 Temperature Topt(˚C) R1224N602L 6.10 6.05 6.00 5.95 5.90 -40 -15 10 Temperature Topt(˚C) 6) Oscillator Frequency vs. Temperature R1224N102G 360 330 300 270 ...
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R1224N102M 216 198 180 162 144 -40 -15 10 Temperature Topt(˚C) 7) Supply Current vs. Temperature R1224N332E -40 -15 10 Temperature Topt(˚C) R1224N602F -40 -15 10 Temperature Topt(˚C) ...
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R1224N R1224N102H -40 -15 10 Temperature Topt(˚C) 8) Soft-start time vs. Temperature R1224N102G -40 -15 10 Temperature Topt(˚C) 9) Delay Time for Protection vs. Temperature ...
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EXT “H” Output Current vs. Temperature R1224N332E -10 -15 -20 -25 -40 -15 10 Temperature Topt(˚C) 11) EXT “L” Output Current vs. Temperature R1224N332E -40 -15 10 Temperature Topt(˚C) 12) Load Transient Response R1224N332G L=10µH ...
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R1224N R1224N332G 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 2.50 -0.0002 -0.0001 0.0000 0.0001 0.0002 0.0003 0.0004 Time(sec) R1224N332H L=10µH V 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 2.50 -2E-04 -1E-04 0 1E-04 2E-04 ...
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R1224N332M L=27µH V 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 2.50 -2E-04 -1E-04 0 0.0001 0.0002 0.0003 0.0004 Time(sec) R1224N332M L=27µH V 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 2.50 -2E-04 -1E-04 0 1E-04 ...
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PACKAGE INFORMATION • SOT-23-5 (SC-74A) PACKAGE DIMENSIONS TAPING SPECIFICATION 2.0Max. TAPING REEL DIMENSIONS REUSE REEL (EIAJ-RRM-08Bc) (1reel=3000pcs) 2.9±0.2 1.9±0.2 (0.95) (0.95 0.4±0.1 +0.1 φ1.5 0 0.3±0.1 3.3 TR User Direction of Feed 2±0.5 21±0.8 PE-SOT-23-5-0610 ...
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PACKAGE INFORMATION POWER DISSIPATION (SOT-23-5) This specification is at mounted on board. Power Dissipation (P This specification is based on the measurement at the condition below: (Power Dissipation (SOT-23-5) is substitution of SOT-23-6.) Measurement Conditions Environment Board Material Board Dimensions ...
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... R1224N SERIES MARK SPECIFICATION • SOT-23-5 (SC-74A • Part Number vs. Product Code Product Code Part Number Part Number R1224N102G R1224N102H R1224N122G R1224N122H R1224N152G R1224N132H R1224N182G R1224N152H R1224N252G R1224N182H R1224N302G R1224N252H R1224N332G ...