LT3582EUD#PBF Linear Technology, LT3582EUD#PBF Datasheet
LT3582EUD#PBF
Specifications of LT3582EUD#PBF
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LT3582EUD#PBF Summary of contents
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... The LT3582 series is available in a 16-pin 3mm × 3mm QFN. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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... Operating Junction Temperature Range (Notes 3, 5) LT3582E ............................................ –40°C to 125°C Storage Temperature Range .............. –65°C to 150°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LT3582EUD#PBF LT3582EUD#TRPBF LT3582EUD-5#PBF LT3582EUD-5#TRPBF LT3582EUD-12#PBF LT3582EUD-12#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T Switching Regulator Characteristics SYMBOL PARAMETER T Maximum Switch On-Time ON_MAX I Boost Switch Current Limit LIMIT_P I Inverting Switch Current Limit LIMIT_N R Boost Switch On-Resistance ON_P R Inverting Switch ...
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LT3582/LT3582-5/LT3582-12 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T Programmable Output Characteristics SYMBOL PARAMETER I RAMPP/RAMPN Pull-Up Current (Note 2) RAMP10 IRMP Code = 10 I RAMPP/RAMPN Pull-Up Current (Note 2) RAMP11 IRMP Code = ...
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ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: LT3582 only. Note ...
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LT3582/LT3582-5/LT3582-12 TYPICAL PERFORMANCE CHARACTERISTICS Switching Frequencies (Figure 13) 10000 V OUTP 1000 V OUTN 100 LOAD CURRENT (mA) 3582512 G01 Quiescent Current – Not Switching 390 370 350 330 310 290 270 250 2.5 ...
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TYPICAL PERFORMANCE CHARACTERISTICS Note: All waveforms on this page apply to Figure 13. Switching Waveform at 1mA Load (Boost) V SWP 5V/DIV V VOUTP 10mV/DIV AC COUPLED I L2 0.2A/DIV 3582512 G10 5μs/DIV Switching Waveform at 1mA Load (Inverting) V ...
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LT3582/LT3582-5/LT3582-12 PIN FUNCTIONS 2 CA (Pin 1 Address Select Pin. Tie this pin to V the 7-bit address to 0110 001. Tie to GND for 1000 101. V (Pin 2): Negative Output Voltage Pin. When the con- OUTN ...
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BLOCK DIAGRAM SWN SWN + – OUTN FBN – OTP – OTP ADJUST RAMPN OUTPUT SEQUENCING 2V OTP ADJUST RAMPP LT3582/LT3582-5/LT3582-12 S VARIABLE DELAY VARIABLE DELAY ...
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LT3582/LT3582-5/LT3582-12 OPERATION The LT3582 series are dual DC/DC converters, each contain- ing both a Boost and an Inverting converter. Operation can be best understood by referring to the Block Diagram. The Boost and Inverting converters each use a novel control ...
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APPLICATIONS INFORMATION Interface 2 The LT3582 series contains compatible interface allowing digitally confi gured. The use of this interface is optional for the LT3582-5 and LT3582-12 as these parts are pre-confi ...
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LT3582/LT3582-5/LT3582-12 APPLICATIONS INFORMATION All data bytes can be read from their assigned register addresses. Since they share the same register addresses, reads of the OTP and REG data bytes are differentiated by their corresponding RSEL (Register Select) bits in the ...
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APPLICATIONS INFORMATION CMDR: The Command Register is used to control various functions of the chip. During shutdown and power-up the CMDR is initialized to 00h. The RSEL (Register Select) bits are functional only for the LT3582. The LT3582-5 and LT3582-12 ...
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LT3582/LT3582-5/LT3582-12 APPLICATIONS INFORMATION OTP2/REG2: Data in address 02h confi gures the output voltage sequencing, sets a fi ne voltage adjust for V and determines if further OTP programming is permitted or not. Proper uses of the bits in address 02h ...
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APPLICATIONS INFORMATION several start-up issues have occurred: A) the expected V ramp up path is not followed B) inductor current OUTP ringing occurs C) the V ramp rate is limited due to OUTP the output disconnect current limit being reached ...
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LT3582/LT3582-5/LT3582-12 APPLICATIONS INFORMATION tion voltage, the remaining output is activated and ramps under control of its respective RAMP pin (see Figure 8). The power-up sequencing concludes when both outputs have reached regulation. Evaluating PUSEQ Settings (LT3582 Only): After SHDN rises, ...
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APPLICATIONS INFORMATION Confi guration Lockout (LOCK bit) After a desired confi guration is programmed into OTP , the LOCK bit can be set to prohibit subsequent changes to the confi guration. The LT3582-5 and LT3582-12 are precon- fi gured with ...
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LT3582/LT3582-5/LT3582-12 APPLICATIONS INFORMATION Choosing Inductors Several series of inductors that work well with the LT3582 series are listed in Table 3. This table is not complete, and there are many other manufacturers and parts that can be used. Consult each ...
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APPLICATIONS INFORMATION Maximum Load Currents: Use one of the following equa- tions to estimate the maximum output load current for the positive and negative output voltages OUTP ⎛ ⎞ ⎛ + 0.5 – • (V ...
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LT3582/LT3582-5/LT3582-12 APPLICATIONS INFORMATION Output Disconnect Operating Limits The LT3582 series has a PMOS output disconnect switch connected between CAPP and V OUTP operation, the switch is closed and current is internally limited to about 155mA (see Figure 9). Make sure ...
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APPLICATIONS INFORMATION Note that the ripple voltage on V OUTP in this confi guration since the output disconnect PMOS, when not shorted, helps to create an RC fi lter at the output. Also, if the V pin is shorted to ...
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LT3582/LT3582-5/LT3582-12 APPLICATIONS INFORMATION D1 V NEG –12V 85mA INTERFACE OPTIONAL ON V Ripple OUTP LOAD CURRENT (mA) Also See Typical Characteristics and Front Page for Additional Data 22 SHDN SWN SWN ...
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TYPICAL APPLICATION V NEG –5V 100mA (V ≥ 2.7V) IN 125mA (V ≥ 3.3V) IN OPTIONAL ON Effi ciency and Power Loss, Load from 3. 0 LOAD ...
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LT3582/LT3582-5/LT3582-12 TYPICAL APPLICATION ±5V Outputs from a Single 2.7V to 3.8V Input (Improved Effi ciency NEG –5V 100mA (V ≥ 2.7V) IN 125mA (V ≥ 3.3V) IN INTERFACE OPTIONAL ON 24 SHDN SWN SWN 6.8μH ...
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TYPICAL APPLICATION V NEG –5V 100mA Effi ciency and Power Loss, Load from 3. 0 LOAD CURRENT (mA) LT3582/LT3582-5/LT3582-12 12V and –5V Outputs from a Single 2.7V ...
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LT3582/LT3582-5/LT3582-12 PACKAGE DESCRIPTION 3.50 0.05 1.45 0.05 (4 SIDES) 2.10 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 3.00 0.10 (4 SIDES) PIN 1 TOP MARK (NOTE 6) NOTE: 1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2) 2. DRAWING ...
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... C Interface Section Revised Typical Application Drawings Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LT3582/LT3582-5/LT3582-12 ...
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... High Effi ciency Step-Up SW DC/DC Converter LT1946/LT1946A 1. 1.2/2.7MHz, High Effi ciency Step-Up DC/DC SW Converter ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 28 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 Effi ciency and Power Loss, Load from V INPUT 2 ...