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Analog Devices ADP1614

650 kHz/1.3 MHz, 4 A, Step-Up, PWM, DC-to-DC Switching Converter

Overview

TopologyBoost Converter
Input voltage2.5-5.5 V
Switching frequency650-1300 kHz
Output 120 V / 4 A
IC revisionB

Description

The ADP1614 is a step-up, dc-to-dc switching converter with an integrated power switch capable of providing an output voltage as high as 20 V. The ADP1614 is available with a pin-adjustable current limit that is set via an external resistor. The boost switching frequency is fixed to either 650 kHz or 1.3 MHz. With a package height of 0.8 mm, the ADP1614 is optimal for space constrained applications, such as portable devices or thin film transistor (TFT) liquid crystal displays (LCDs).

The ADP1614 operates in current-mode pulse-width modulation (PWM) with up to 94% efficiency. Adjustable soft start prevents inrush currents when the part is enabled. The PWM current-mode architecture allows excellent transient response, easy noise filtering, and the use of small, cost-saving external inductors and capacitors. Other key features include undervoltage lockout (UVLO), thermal shutdown (TSD), and logic controlled enable.

The ADP1614 is available in a Pb-free, 10-lead lead frame chip scale package (LFCSP).

Features

  • Adjustable and fixed current-limit options-Adjustable up to 4 A

    -Fixed 3 A

  • 2.5 V to 5.5 V input voltage range
  • 650 kHz or 1.3 MHz fixed frequency option
  • Adjustable output voltage, up to 20 V
  • Adjustable soft start
  • Undervoltage lockout
  • Thermal shutdown
  • 3 mm × 3 mm, 10-lead LFCSP
  • Supported by ADIsimPower design tool

Remarks:Inductors smaller than the 4.7 μH to 22 μH recommendedRefer page no.14

Typical applications

  • Portable applications
  • TFT LCD bias supplies
  • Industrial instrumentation equipment

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
fres
(MHz)
MountRDC max.
(mΩ)
SizeVersionMaterialLR
(µH)
RDC
(mΩ)
Samples
744071047SPEC
9 files WE-TPC SMT Tiny Power Inductor 4.7 4.8 4.3 17 35 SMT 22 8043 SMT
7440650047SPEC
9 files WE-TPC SMT Tiny Power Inductor 4.7 4.6 4.2 16.5 40 SMT 23 1028 SMT
7447713047SPEC
7 files WE-PD SMT Power Inductor 4.7 4 6 26 42 SMT 31 1030 Performance
7447714047SPEC
7 files WE-PD SMT Power Inductor 4.7 7 8 10.4 34 SMT 12.4 1050 Performance
7447797470SPEC
9 files WE-PDF SMT Power Inductor 4.7 6.2 8 17.3 45 SMT 19.5 1045 SMT
7447798470SPEC
9 files WE-PDF SMT Power Inductor 4.7 9.5 7.6 7.4 44 SMT 8.4 1064 SMT
744776047SPEC
9 files WE-PD2 SMT Power Inductor 4.7 5 6 12 41 SMT 17 1054
744314490SPEC
9 files WE-HCI SMT Flat Wire High Current Inductor 4.9 6.5 6.5 56 SMT 15.95 7050 SMT Superflux 3.4 14.5
744066005SPEC
9 files WE-TPC SMT Tiny Power Inductor 5 4.9 5.5 14.5 30 SMT 22 1038 SMT
744314650SPEC
9 files WE-HCI SMT Flat Wire High Current Inductor 6.5 6 6 50 SMT 23.65 7050 SMT Superflux 4.5 21.5
744314760SPEC
9 files WE-HCI SMT Flat Wire High Current Inductor 7.6 4.2 4.8 48 SMT 33.22 7050 SMT Superflux 6 28.2
7447797820SPEC
9 files WE-PDF SMT Power Inductor 8.2 5.05 5.8 25.3 28 SMT 28.6 1045 SMT
744314850SPEC
9 files WE-HCI SMT Flat Wire High Current Inductor 8.5 4 4.5 44 SMT 35.75 7050 SMT Superflux 6.8 30.5
744071100SPEC
9 files WE-TPC SMT Tiny Power Inductor 10 3.4 2.8 28 24 SMT 35 8043 SMT
744065100SPEC
9 files WE-TPC SMT Tiny Power Inductor 10 3 2.5 40 25 SMT 53 1028 SMT
744066100SPEC
9 files WE-TPC SMT Tiny Power Inductor 10 3.6 4 25 20 SMT 35 1038 SMT
7447714100SPEC
7 files WE-PD SMT Power Inductor 10 4.3 5 23 20.5 SMT 27 1050 Performance
74477510SPEC
9 files WE-PD2 SMT Power Inductor 10 2.3 2.95 44 28 SMT 70 7850
74477610SPEC
9 files WE-PD2 SMT Power Inductor 10 2.98 3.24 28 24 SMT 60 1054
744314101SPEC
9 files WE-HCI SMT Flat Wire High Current Inductor 10 3.5 4 40 SMT 36.3 7050 SMT Superflux 7.5 33
7447798111SPEC
9 files WE-PDF SMT Power Inductor 11 6.9 5.3 14 25 SMT 15.8 1064 SMT
744071150SPEC
9 files WE-TPC SMT Tiny Power Inductor 15 2.8 2.3 46 20 SMT 55 8043 SMT
744066150SPEC
9 files WE-TPC SMT Tiny Power Inductor 15 3.2 3.25 37 16 SMT 50 1038 SMT
7447714150SPEC
7 files WE-PD SMT Power Inductor 15 3.5 4.1 36 16.8 SMT 43 1050 Performance
7447798151SPEC
9 files WE-PDF SMT Power Inductor 15 5.45 4 21.8 19 SMT 25.8 1064 SMT
744775115SPEC
9 files WE-PD2 SMT Power Inductor 15 1.93 2.23 44 20 SMT 90 7850
744776115SPEC
9 files WE-PD2 SMT Power Inductor 15 2.47 2.88 34 20 SMT 80 1054
7447798221SPEC
9 files WE-PDF SMT Power Inductor 22 4.7 3.5 33 17 SMT 37.3 1064 SMT
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
fres
(MHz)
MountRDC max.
(mΩ)
SizeVersionMaterialLR
(µH)
RDC
(mΩ)
Samples