LTC3727EG#PBF Multiple Output Buck Regulators by Analog Devices

Status: Production
Series: LTC3727
RoHS: Compliant
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The LTC3727/LTC3727-1 are high performance dual step-down switching regulator controllers that drive all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows phase-lockable frequency of up to 550kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out of phase.OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. There is a precision 0.8V reference and a power good output indicator. A wide 4V to 30V (36V maximum) input supply range encompasses all battery chemistries.A RUN/SS pin for each controller provides soft-start, and on the LTC3727GN, optional timed, short-circuit shutdown. Current foldback limits MOSFET heat dissipation during short-circuit conditions when overcurrent latchoff is disabled. Output overvoltage protection circuitry latches on the bottom MOSFET until VOUT returns to normal. The FCB mode pin can select among Burst Mode, constant frequency mode and continuous inductor current mode or regulate a secondary winding. Vin Range Vref Accuracy Over Temp Latch-Off  Min On-Time  LTC3727 4V - 36V ±1%   No   180ns  LTC3727-1 4V - 36V ±1%  Yes 180ns  LTC3727A-1 4V - 36V ±1%  No 120ns  LTC3727LX-1 4V - 32V ±1.5%  No 120ns

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Prices starting from US$5.83

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Features

Wide Output Voltage Range:
0.8V ≤ VOUT ≤ 14V
Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
OPTI-LOOP® Compensation Minimizes COUT
±1% Output Voltage Accuracy
Power Good Output Voltage Monitor
Phase-Lockable Fixed Frequency 250kHz to 550kHz
Latched Short-Circuit Shutdown (LTC3727 Only)
Dual N-Channel MOSFET Synchronous Drive
Wide VIN Range: 4V to 36V Operation
Very Low Dropout Operation: 99% Duty Cycle
Adjustable Soft-Start Current Ramping
Foldback Output Current Limiting
Output Overvoltage Protection
Low Shutdown IQ: 20µA
Selectable Constant Frequency or Burst Mode® Operation
Small 28-Lead SSOP Package
LTC3727-1 Also Available in the 5mm × 5mm QFN Package

Alternative Descriptions

Hi Eff, 2-PhSync Buck Sw Regs | Analog Devices
Dc/Dc Ctrl, Sync Buck, 530Khz, 85Deg C | Newark Electronics
DC/DC CTRL, SYNC BUCK, 530KHZ, 85DEG C | element14
POWER MANAGEMENT IC | Richardson RFPD


LTC3727EG#PBF Semiconductors - ICs by Linear Technology

SWITCHING REG SMD SSOP28 3727

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage Min 4V
Supply Voltage Max 36V
No. of Outputs 2 Output, 2Outputs
Duty Cycle (%) 99%
Controller IC Case Style SSOP
No. of Pins 28Pins
Switching Frequency 580kHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 3727
Frequency 550kHz
Input Current 670µA
Input Voltage 15V
Operating Temperature Range -40°C to +85°C
Output Current 3A
Output Voltage 36V
Output Voltage Max 14V
Primary Input Voltage 36V
Supply Voltage Range 4V to 36V
Termination Type Surface Mount Device

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3727EG#PBF?

Additional datasheets, footprints and schematics for LTC3727EG#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3727EG#PBF on this page.

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What category does LTC3727EG#PBF fall under?

The LTC3727EG#PBF is listed under Multiple Output Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to LTC3727EG#PBF when available in the Multiple Output Buck Regulators range under the specifications section at the bottom of the details page.

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Is the LTC3727EG#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LTC3727EG#PBF have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for LTC3727EG#PBF.

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