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ADP1611:  20 V,1.2 MHz Step-Up DC-to-DC Switching Converter

The ADP1611 is a step-up dc-to-dc switching converter with an integrated 1.2 A, 0.23 Ω power switch capable of providing an output voltage as high as 20 V. With a package height of less than 1.1 mm, the ADP1611 is optimal for space-constrained applications such as portable devices or thin film transistor (TFT) liquid crystal displays (LCDs).

The ADP1611 operates in pulse-width modulation ...More

ADP1611:  20 V,1.2 MHz Step-Up DC-to-DC Switching Converter

Product Description

The ADP1611 is a step-up dc-to-dc switching converter with an integrated 1.2 A, 0.23 Ω power switch capable of providing an output voltage as high as 20 V. With a package height of less than 1.1 mm, the ADP1611 is optimal for space-constrained applications such as portable devices or thin film transistor (TFT) liquid crystal displays (LCDs).

The ADP1611 operates in pulse-width modulation (PWM) current mode with up to 90% efficiency. Adjustable soft start prevents inrush currents at startup. The pin-selectable switching frequency and PWM current-mode architecture allow excellent transient response, easy noise filtering, and the use of small, cost-saving external inductors and capacitors.

The ADP1611 is offered in the Pb-free 8-lead MSOP and operates over the temperature range of −40°C to +85°C.

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  • Fully integrated 1.2 A, 0.23Ω Power Switch
  • Pin-selectable 700 kHz or 1.2 MHz PWM Frequency
  • 90% Efficiency
  • Adjustable Output Voltage up to 20 V
  • 3% Output Regulation Accuracy
  • Adjustable Soft Start
  • Input Undervoltage Lockout
  • MSOP 8-lead Package
  • Product Description: 20 V,1.2 MHz Step-Up DC-to-DC Switching Converter
  • Input Voltage Range (Vcc): 2.5 to 5.5 V
  • Package: 8-MSOP

Functional Block Diagram for ADP1611

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Part# Input Voltage Range (Vcc) Vout Adjust Options Iout (max) (mA) Switching Frequency (MHz) Package Price* (1000-4999)
ADM8843 2.6 to 5.5V - 20 1.5 16-LFCSP $0.50
ADM8845 2.6 to 5.5V - 30 - 16-LFCSP $0.71
ADP1610 2.5 to 5.5 V Vin to 12 V 1.2 1.2 8-MSOP $1.12
ADP1611 2.5 to 5.5 V Vin to 20 V 1.2 1.2 8-MSOP -
ADP1653 2.75 to 5.5 V - 500 1.2 16-LFCSP $1.45
ADP1655 2.75 to 5.5 V - 500 2 12-WLCSP $0.95
ADP5520 2.27 to 5.5 V - 30 1 - $1.66
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* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.