XC9511A1434 TOREX [Torex Semiconductor], XC9511A1434 Datasheet
XC9511A1434
Related parts for XC9511A1434
XC9511A1434 Summary of contents
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XC9511 Series Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator In Parallel Plus Voltage Detector ■GENERAL DESCRIPTION The XC9511 series consists of a step-down DC/DC converter and a high-speed LDO regulator connected in parallel with the DC/DC converter's output. A ...
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XC9511 Series ■PIN CONFIGURATION PGND 1 PVDD 2 AVDD 3 VDOUT 4 SOP-8 (TOP VIEW) ■PIN ASSIGNMENT PIN NUMBER PIN NAME 1 P GND 2 P VDD 3 A VDD 4 V DOUT 5 A GND 6 V ROUT 7 ...
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DIAGRAM * Diodes shown in the above circuit are protective diodes ■ABSOLUTE MAXIMUM RATINGS PARAMETER A Pin Voltage VDD P Pin Voltage VDD D Pin Voltage COUT V Pin Voltage ROUT V Pin Current ROUT V Pin Voltage DOUT ...
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XC9511 Series ■ELECTRICAL CHARACTERISTICS XC9511xxxCSx ●Common Characteristics PARAMETER SYMBOL Supply Current 1 Supply Current 2 Input Voltage Range ●DC/DC Converter (1.5V product) PARAMETER SYMBOL Output Voltage DC Oscillation Frequency Maximum Duty Ratio MAXDUTY Minimum Duty Ratio MINDUTY PFM Duty Ratio ...
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CHARACTERISTICS (Continued) XC9511xxxCSx (Continued) ●Regulator (3.3V product) PARAMETER SYMBOL Output Voltage VR OUT Maximum Output Current Imax2 Load Regulation VR Dropout Voltage 1 (*5) Vdif 1 Dropout Voltage 2 Vdif 2 VROUT Line Regulation V ・VR IN Current Limit ...
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XC9511 Series ■TEST CIRCUITS Circuit 1 Supply Current Circuit 3 Output Voltage (DC/DC) Oscillation Frequency, U.V.L.O. Voltage, Soft start Time Maximum Output Current, Efficiency, (PFM Duty Cycle), Circuit Resistance 6/35 Circuit 2 Output Voltage (VR), Load Regulation, ...
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CIRCUITS (Continued) Circuit 7 Current Limit 2 (VR), Short Current (VR) Circuit 9 VD Output Current * For the measurement of the VDD_Sense products, the input voltage was controlled. Circuit 11 Off-Leak Circuit 8 Detect Voltage, Release Voltage (Hysteresis ...
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XC9511 Series ■TYPICAL APPLICATION CIRCUIT SOP-8 (TOP VIEW 4.7μF (ceramic, TAIYO YUDEN) SD *1: XB0ASB03A1BR (TOREX) *1 The DC/DC converter of the XC9511 series automatically switches between synchronous / non-synchronous. The Schottky diode is not normally needed. However, ...
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EXPLANATION (Continued) <Synchronous / Non-synchronous> The XC9511 series automatically switches between synchronous / non-synchronous according to the state of the DC/DC converter. Highly efficient operations are achievable using the synchronous mode while the coil current continuous ...
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XC9511 Series ■OPERATIONAL EXPLANATION (Continued) <U.V.L.O. Circuit> When the V pin voltage becomes 1 lower, the P-channel output driver transistor is forced OFF to prevent false IN pulse output caused by unstable operation of the internal circuitry. When ...
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ON USE ●Application Information 1. The XC9511 series is designed for use with a ceramic output capacitor. If, however, the potential difference between dropout voltage or output current is too large, a ceramic capacitor may fail to absorb the ...
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XC9511 Series ■NOTES ON USE (Continued) ●Application Information (Continued) 6. When the XC9511D to F series operate in PWM/PFM automatic switching control mode, the reverse current may become quite high around the load current value when synchronous switches to non-synchronous ...
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ON USE (Continued) ●Application Information (Continued) 14. Should the bi-directional load current of the synchronous DC/DC converter and the regulator become large, please be careful of the power dissipation when in use. Please calculate power dissipation by using the ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (A) DC/DC CONVERTER (1) Efficiency vs. Output Current 14/35 ...
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PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (2) Output Voltage vs. Output Current XC9511 Series 15/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (3) Output Voltage vs. Ripple Voltage 16/35 ...
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PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (4) Output Voltage vs. Ambient Temperature (5) Soft-Start Time vs. Ambient Temperature XC9511 Series 17/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (6) LX Pch/Nch On Resistance vs. Input Voltage (7) Oscillation Frequency vs. Ambient Temperature Ambient Temperature :Ta(℃) 18/35 (8) U.V.L.O. Voltage vs. Ambient Temperature Ambient Temperature :Ta(℃) ...
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PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (9-1) DC/DC Load Transient Response (D (a) PWM Control* (*XC9511A/B/C series) (b) PWM/PFM Automatic Switching Control* (*XC9511D/E/F series) : 1.5V, FOSC: 1.2MHz) COUT XC9511 Series 19/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (9-2) DC/DC Load Transient Response (D (a) PWM Control* (*XC9511A/B/C series) (b) PWM/PFM Automatic Switching Control* (*XC9511D/E/F series) 20/35 : 1.8V, FOSC: 1.2MHz) COUT ...
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PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (9-3) DC/DC Load Transient Response (D (a) PWM Control* (*XC9511A/B/C series) (b) PWM/PFM Automatic Switching Control* (*XC9511D/E/F series) : 3.3V, FOSC: 600kHz) COUT XC9511 Series 21/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (9-4) DC/DC Load Transient Response (D (a) PWM Control* (*XC9511A/B/C series) (b) PWM/PFM Automatic Switching Control* (*XC9511D/E/F series) 22/35 : 1.5V, FOSC: 600kHz) COUT ...
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PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (9-5) DC/DC Load Transient Response (D (a) PWM Control* (*XC9511A/B/C series) (b) PWM/PFM Automatic Switching Control* (*XC9511D/E/F series) : 1.8V, FOSC: 600kHz) COUT XC9511 Series 23/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (A) DC/DC CONVERTER (Continued) (9-6) DC/DC Load Transient Response (D (a) PWM Control* (*XC9511A/B/C series) (b) PWM/PFM Automatic Switching Control* (*XC9511D/E/F series) 24/35 : 3.3V, FOSC: 600kHz) COUT ...
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PERFORMANCE CHARACTERISTICS (Continued) (B) VOLTAGE REGULATOR (1) Output Voltage vs. Input Voltage XC9511 Series 25/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (B) VOLTAGE REGULATOR (Continued) (2) Output Voltage vs. Output Current (Current Limit) 26/35 ...
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PERFORMANCE CHARACTERISTICS (Continued) (B) VOLTAGE REGULATOR (Continued) (3) Dropout Voltage vs. Output Current XC9511 Series Ta=-40℃ 27/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (B) VOLTAGE REGULATOR (Continued) (4) Output Voltage vs. Output Current 28/35 ...
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PERFORMANCE CHARACTERISTICS (Continued) (B) VOLTAGE REGULATOR (Continued) (5) Ripple Rejection Ratio vs. Ripple Frequency XC9511 Series 29/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (B) VOLTAGE REGULATOR (Continued) (6) VR Load Transient Response 30/35 ...
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PERFORMANCE CHARACTERISTICS (Continued) (C) VOLTAGE DETECTOR (1) Output Current vs. Input Voltage (2) Detect Voltage vs. Input Voltage XC9511 Series 31/35 ...
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XC9511 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (C) VOLTAGE DETECTOR (Continued) (3) Detect Voltage, Release Voltage vs. Ambient Temperature 32/35 ...
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PERFORMANCE CHARACTERISTICS (Continued) (D) COMMON (1) Supply Current vs. Ambient Temperature (DC/DC & VR & VD) XC9511 Series 33/35 ...
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XC9511 Series ■PACKAGING INFORMATION ●SOP-8 ■MARKING RULE ●SOP-8 SOP-8 (TOP VIEW) 34/35 ①②Represents product series MARK ① ② ③Represents DC/DC control methods, MODE pin and VD sense pin MARK DC/DC CONTROL A PWM Control PWM, ...
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The products and product specifications contained herein are subject to change without notice to improve performance characteristics. Consult us, or our representatives before use, to confirm that the information in this catalog date assume ...