SI9130 Vishay, SI9130 Datasheet
SI9130
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SI9130 Summary of contents
Page 1
... MOSFETs, one Si4435 p-channel TrenchFET Power MOSFET, and two Si9712 PC Card (PCMCIA) Interface Switches. The Si9130 is available in both standard and lead (Pb)-free 28-pin SSOP packages and specified to operate over the commercial (0_C to 70_C) and extended commercial (−10_C to 90_C) temperature ranges. See Ordering Information for corresponding part numbers ...
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... REF, V Short to GND L "2 V REF Current -0 Current L Continuous Power Dissipation (T -0 28-Pin SSOP - 0.3 V Operating Temperature Range 0.3 V Si9130CG Si9130LG , SYNC Lead Temperature (soldering, 10 sec Notes -0.3 V (BST + 0 Device mounted with all leads soldered or welded to PC board. ...
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... CL CL Vishay Siliconix LIMITS A B MIN TYP MAX MAX 110 5.5 8 270 300 330 170 200 230 200 200 200 240 350 0 " www.vishay.com Si9130 A UNIT kHz kHz ns kHz % % and CL 3 ...
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... Si9130 Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Efficiency vs. 5-V Output Current, 200 kHz 100 SYNC = 0 V, 3.3 V Off 60 50 0.001 0.01 0.1 5-V Output Current (A) Efficiency vs. 3.3-V Output Current, 200 kHz 100 SYNC = ...
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... Load Current (mA) Pulse-Width Modulation Mode Waveforms 5-V Output 50 mV/div 2 V/div 5-V Output Current = 1 A Vishay Siliconix Minimum Differential IN OUT vs. 5-V Output Current 5-V Output Still Regulating 300 kHz 200 kHz 0.01 0.1 1 5-V Output Current (A) 1000 LX 10 V/div 5-V Output 50 mV/div 500 ns/div www.vishay.com Si9130 10 5 ...
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... Si9130 Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) 5-V Load-Transient Response 200 mS/div 5-V Line-Transient Response, Rising 20 mS/div LOAD 3.3-V Line-Transient Response, Rising 20 mS/div LOAD www.vishay.com 6 3.3-V Load-Transient Response 3 A LOAD CURRENT 0 A 5-V Output 50 mV/div 200 mS/div 5-V Line-Transient Response, Falling ...
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... Feedback input for the 3.3-V Buck controller. 3 Document Number: 70190 S-40805—Rev. F, 26-Apr-04 Standard Lead (Pb)-Free 3 Part Number Si9130CG Si9130CG-T1 Si9130CG-T1—E3 Si9130LG Si9130LG-T1 Si9130LG-T1—E3 5 Demo Board Si9130DB Description to GND. 3 for automatic turn-on. The 5 Vishay Siliconix Ordering Information Temperature Part Number ...
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... Si9130 Vishay Siliconix 3.45ADJ DESCRIPTION OF OPERATION The Si9130 is a dual step-down converter, which takes a 5.5-V to 30-V input and supplies power via two PWM controllers (see Figure 1). These 5-V and 3.3-V supplies run on an optional 300-kHz or 200-kHz internal oscillator external sync signal. Amount of output current is limited by external components, but can deliver greater than either supply ...
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... Below this threshold, the 5-V controller is shut off. Si9130 is capacitor The frequency of both PWM controllers is set at 300 kHz when the SYNC pin is tied to REF. Connecting SYNC to either GND or V sets the frequency at 200 kHz. L 4.5 V STANDBY ON FIGURE 2. Si9130 Block Diagram Vishay Siliconix linear regulator 3.3-V BST 3 PWM ...
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... SS_ ON_ 3.3-V and 5-V Switching Controllers Each PWM controller on the Si9130 is identical with the exception of the preset output voltages. The controllers only share three functional blocks (see Figure 3): the oscillator, the voltage reference (REF) and the 5-V logic supply (V controllers are independently enabled with pins ON respectively ...
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... During the time when neither MOSFET is on, the Schottky is conducting, so that the body diode in the low-side MOSFET is not forced to conduct. Synchronous rectification is always active when the Si9130 is powered-up, regardless of the operational mode. Gate-Driver Boost The high-side n-channel drive is supplied by a flying-capacitor boost circuit (see Figure 4) ...
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... Pulse-Skipping Mode When the load requires less than 25% of its maximum, the Si9130 enters a mode which drives the gate for one clock cycle and skips the majority of the remaining cycles. Pulse-skipping mode cuts down on the switching losses, the dominant power consumer at low current levels ...
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... The application circuit shown here can be easily modified to work with 5.5-V to 12-V input voltages. Oscillation frequency should be set at 200 kHz and increase the output capacitance to 660 mF on the 5-V output to maintain stable performance load current. Operation on the 3.3-V supply will not be affected by this reduced input voltage. Si9130 Vishay Siliconix V REF (2)(p)(GPWP) CS ...
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... Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right ...