Datasheet LTC3423, LTC3424 (Analog Devices) - 2

ПроизводительAnalog Devices
ОписаниеLow Output Voltage, 3MHz Micropower Synchronous Boost Converters
Страниц / Страница12 / 2 — ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL …
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ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL CHARACTERISTICS The

ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ELECTRICAL CHARACTERISTICS The

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PMIC; преобразователь DC/DC; Uвх:0,5÷5В; Uвых:1,5÷5,5В; MSOP10
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LTC3423/LTC3424
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
VIN, VOUT, VDD Voltages .. – 0.5V to 6V ORDER PART SW Voltage ... – 0.5V to 6V TOP VIEW NUMBER V R 1 10 SHDN C, Rt Voltages ... – 0.5V to (VOUT + 0.3V) t MODE 2 9 VC LTC3423EMS SHDN, FB, MODE Voltages ... – 0.5V to 6V V 3 IN 8 FB SW 4 7 VOUT LTC3424EMS Operating Temperature Range (Note 2) .. – 40°C to 85°C GND 5 6 VDD Storage Temperature Range ... – 65°C to 125°C MS PACKAGE 10-LEAD PLASTIC MSOP MS PART MARKING Lead Temperature (Soldering, 10 sec).. 300°C TJMAX = 125°C θ LTQM JA = 130°C/ W 1 LAYER BOARD θJA = 100°C/ W 4 LAYER BOARD LTQN Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The

denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VDD = 3.3V, VOUT = 1.8V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
VDD Input Voltage Range ● 2.7 5.5 V VIN Operating Voltage Range (Note 4) ● 0.5 5.5 V Output Voltage Adjust Range ● 1.5 5.5 V Feedback Voltage ● 1.22 1.25 1.28 V Feedback Input Current VFB = 1.25V 1 50 nA Quiescent Current—Burst Mode Operation VC = 0V, MODE/SYNC = 3.3V (Note 3) 38 65 µA Quiescent Current—SHDN SHDN = 0V, Not Including Switch Leakage 0.1 1 µA Quiescent Current—Active VC = 0V, MODE/SYNC = 0V, Rt = 300k (Note 3) 440 800 µA NMOS Switch Leakage 0.1 5 µA PMOS Switch Leakage 0.1 10 µA NMOS Switch On Resistance 0.16 Ω PMOS Switch On Resistance 0.21 Ω NMOS Current Limit LTC3423 ● 1 1.6 A LTC3424 ● 2 2.8 A Maximum Duty Cycle Rt = 15k ● 80 85 % Minimum Duty Cycle ● 0 % Frequency Accuracy Rt = 15k ● 1.6 2 2.4 MHz MODE/SYNC Input High 1.4 V MODE/SYNC Input Low 0.4 V MODE/SYNC Input Current VMODE/SYNC = 5.5V 0.01 1 µA Error Amp Transconductance ∆I = –5µA to 5µA, VC = VFB 85 µmhos 34234f 2