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LINEAR TECHNOLOGY  LTC1700EMS#PBF  DC/DC Controller, Current Mode, 900mV to 5V, 1 Output, Synchronous Boost, 680kHz, MSOP-10

LINEAR TECHNOLOGY LTC1700EMS#PBF
Manufacturer Part No:
LTC1700EMS#PBF
Order Code:
1663669
Technical Datasheet:
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Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC1700EMS#PBF is a current-mode synchronous step-up DC/DC Controller drives external N-channel and P-channel power MOSFETs using a constant frequency PWM architecture. Current limiting is provided by sensing the voltage drop across the main MOSFET, eliminating the need of a sense resistor. This No RSENSE technique helps the LTC1700 maintain high efficiency at heavy loads while Burst Mode operation ensures high efficiency at light loads, thus providing high efficiencies over a wide range of load currents. It operates at a minimum input voltage as low as 0.9V. The device boasts a ±1.5% output voltage accuracy and consumes only 200µA of quiescent current. In shutdown, it only draws 10µA. To prevent inductor current runaway, the duty cycle is limited to 90%. Overvoltage protection is also provided which shuts both the external MOSFETs off when tripped. High constant operating frequency of 530kHz allows the use of small inductors and output capacitors.
  • No current sense resistor required
  • OPTI-LOOP® Compensation minimizes COUT
  • Selectable Burst Mode® operation
  • Current mode operation for excellent line and load transient response
  • Soft-start reduces supply current transients
  • 1.5% Output voltage accuracy
  • Uses low value, small size, surface mount inductors

Product Information

Supply Voltage Min:
900mV
Supply Voltage Max:
5V
No. of Outputs:
1 Output
Duty Cycle (%):
92%
Controller IC Case Style:
MSOP
No. of Pins:
10Pins
Switching Frequency:
680kHz
Topology:
Synchronous Boost (Step Up)
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Wireless
  • Communications & Networking
  • Consumer Electronics
  • Portable Devices
  • Power Management
  • RF Communications

Legislation and Environmental

Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000254

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