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Overview
| Topology | Boost Converter |
| Input voltage | 2.5-5.5 V |
| Switching frequency | 650-1300 kHz |
| Output 1 | 20 V / 4 A |
| IC revision | B |
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
- TFT LCD bias supplies
- Industrial instrumentation equipment
- Portable applications
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | IRP,40K(A) | RDC max.(mΩ) | Size | Version | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 4.7 µH, 4.8 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current4.8 A | Saturation Current4.3 A | Self Resonant Frequency35 MHz | MountSMT | – | DC Resistance22 mΩ | Size8043 | VersionSMT | – | – | – | – | ||||
 | WE-TPC SMT Tiny Power Inductor, 4.7 µH, 4.6 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current4.6 A | Saturation Current4.2 A | Self Resonant Frequency40 MHz | MountSMT | – | DC Resistance23 mΩ | Size1028 | VersionSMT | – | – | – | – | ||||
 | WE-PD SMT Power Inductor, 4.7 µH, 4 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance4.7 µH | Rated Current4 A | Saturation Current6 A | Self Resonant Frequency42 MHz | MountSMT | – | DC Resistance31 mΩ | Size1030 | VersionPerformance | – | – | – | – | ||||
 | WE-PD SMT Power Inductor, 4.7 µH, 7 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance4.7 µH | Rated Current7 A | Saturation Current8 A | Self Resonant Frequency34 MHz | MountSMT | – | DC Resistance12.4 mΩ | Size1050 | VersionPerformance | – | – | – | – | ||||
 | WE-PDF SMT Power Inductor, 4.7 µH, 6.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance4.7 µH | Rated Current6.2 A | Saturation Current8 A | Self Resonant Frequency45 MHz | MountSMT | – | DC Resistance19.5 mΩ | Size1045 | VersionSMT | – | – | – | – | ||||
 | WE-PDF SMT Power Inductor, 4.7 µH, 9.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance4.7 µH | Rated Current9.5 A | Saturation Current7.6 A | Self Resonant Frequency44 MHz | MountSMT | – | DC Resistance8.4 mΩ | Size1064 | VersionSMT | – | – | – | – | ||||
 | WE-PD2 SMT Power Inductor, 4.7 µH, 5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD2 SMT Power Inductor | Inductance4.7 µH | Rated Current5 A | Saturation Current6 A | Self Resonant Frequency41 MHz | MountSMT | – | DC Resistance17 mΩ | Size1054 | – | – | – | – | MaterialNiZn | ||||
 | WE-HCI SMT Flat Wire High Current Inductor, 4.9 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance4.9 µH | – | – | Self Resonant Frequency56 MHz | MountSMT | Performance Rated Current8.3 A | DC Resistance15.95 mΩ | Size7050 | VersionSMT | Saturation Current @ 10%2.2 A | Saturation Current @ 30%6.5 A | DC Resistance14.5 mΩ | MaterialSuperflux | ||||
 | WE-TPC SMT Tiny Power Inductor, 5 µH, 5.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance5 µH | Rated Current5.3 A | Saturation Current5.5 A | Self Resonant Frequency30 MHz | MountSMT | – | DC Resistance22 mΩ | Size1038 | VersionSMT | – | – | – | – | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 6.5 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance6.5 µH | – | – | Self Resonant Frequency50 MHz | MountSMT | Performance Rated Current6.6 A | DC Resistance23.65 mΩ | Size7050 | VersionSMT | Saturation Current @ 10%2 A | Saturation Current @ 30%6 A | DC Resistance21.5 mΩ | MaterialSuperflux | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 7.6 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance7.6 µH | – | – | Self Resonant Frequency48 MHz | MountSMT | Performance Rated Current5.5 A | DC Resistance33.22 mΩ | Size7050 | VersionSMT | Saturation Current @ 10%2.2 A | Saturation Current @ 30%4.8 A | DC Resistance28.2 mΩ | MaterialSuperflux | ||||
| WE-PDF SMT Power Inductor, 8.2 µH, 5.05 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance8.2 µH | Rated Current5.05 A | Saturation Current5.8 A | Self Resonant Frequency28 MHz | MountSMT | – | DC Resistance28.6 mΩ | Size1045 | VersionSMT | – | – | – | – | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 8.5 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance8.5 µH | – | – | Self Resonant Frequency44 MHz | MountSMT | Performance Rated Current5.3 A | DC Resistance35.75 mΩ | Size7050 | VersionSMT | Saturation Current @ 10%2 A | Saturation Current @ 30%4.5 A | DC Resistance30.5 mΩ | MaterialSuperflux | ||||
| WE-TPC SMT Tiny Power Inductor, 10 µH, 3.4 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance10 µH | Rated Current3.4 A | Saturation Current2.8 A | Self Resonant Frequency24 MHz | MountSMT | – | DC Resistance35 mΩ | Size8043 | VersionSMT | – | – | – | – | ||||
| WE-TPC SMT Tiny Power Inductor, 10 µH, 3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance10 µH | Rated Current3 A | Saturation Current2.5 A | Self Resonant Frequency25 MHz | MountSMT | – | DC Resistance53 mΩ | Size1028 | VersionSMT | – | – | – | – | ||||
| WE-TPC SMT Tiny Power Inductor, 10 µH, 3.9 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance10 µH | Rated Current3.9 A | Saturation Current4 A | Self Resonant Frequency20 MHz | MountSMT | – | DC Resistance35 mΩ | Size1038 | VersionSMT | – | – | – | – | ||||
| WE-PD SMT Power Inductor, 10 µH, 4.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance10 µH | Rated Current4.3 A | Saturation Current5 A | Self Resonant Frequency20.5 MHz | MountSMT | – | DC Resistance27 mΩ | Size1050 | VersionPerformance | – | – | – | – | ||||
| WE-PD2 SMT Power Inductor, 10 µH, 2.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD2 SMT Power Inductor | Inductance10 µH | Rated Current2.3 A | Saturation Current2.95 A | Self Resonant Frequency28 MHz | MountSMT | – | DC Resistance70 mΩ | Size7850 | – | – | – | – | – | ||||
| WE-PD2 SMT Power Inductor, 10 µH, 2.98 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD2 SMT Power Inductor | Inductance10 µH | Rated Current2.98 A | Saturation Current3.24 A | Self Resonant Frequency24 MHz | MountSMT | – | DC Resistance60 mΩ | Size1054 | – | – | – | – | MaterialNiZn | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 10 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance10 µH | – | – | Self Resonant Frequency40 MHz | MountSMT | Performance Rated Current5.3 A | DC Resistance36.3 mΩ | Size7050 | VersionSMT | Saturation Current @ 10%1.8 A | Saturation Current @ 30%4 A | DC Resistance33 mΩ | MaterialSuperflux | ||||
| WE-PDF SMT Power Inductor, 11 µH, 6.9 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance11 µH | Rated Current6.9 A | Saturation Current5.3 A | Self Resonant Frequency25 MHz | MountSMT | – | DC Resistance15.8 mΩ | Size1064 | VersionSMT | – | – | – | – | ||||
| WE-TPC SMT Tiny Power Inductor, 15 µH, 2.8 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance15 µH | Rated Current2.8 A | Saturation Current2.3 A | Self Resonant Frequency20 MHz | MountSMT | – | DC Resistance55 mΩ | Size8043 | VersionSMT | – | – | – | – | ||||
| WE-TPC SMT Tiny Power Inductor, 15 µH, 3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance15 µH | Rated Current3 A | Saturation Current3.25 A | Self Resonant Frequency16 MHz | MountSMT | – | DC Resistance50 mΩ | Size1038 | VersionSMT | – | – | – | – | ||||
| WE-PD SMT Power Inductor, 15 µH, 3.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance15 µH | Rated Current3.5 A | Saturation Current4.1 A | Self Resonant Frequency16.8 MHz | MountSMT | – | DC Resistance43 mΩ | Size1050 | VersionPerformance | – | – | – | – | ||||
| WE-PDF SMT Power Inductor, 15 µH, 5.45 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance15 µH | Rated Current5.45 A | Saturation Current4 A | Self Resonant Frequency19 MHz | MountSMT | – | DC Resistance25.8 mΩ | Size1064 | VersionSMT | – | – | – | – | ||||
| WE-PD2 SMT Power Inductor, 15 µH, 1.93 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD2 SMT Power Inductor | Inductance15 µH | Rated Current1.93 A | Saturation Current2.23 A | Self Resonant Frequency20 MHz | MountSMT | – | DC Resistance90 mΩ | Size7850 | – | – | – | – | – | ||||
| WE-PD2 SMT Power Inductor, 15 µH, 2.47 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD2 SMT Power Inductor | Inductance15 µH | Rated Current2.47 A | Saturation Current2.88 A | Self Resonant Frequency20 MHz | MountSMT | – | DC Resistance80 mΩ | Size1054 | – | – | – | – | MaterialNiZn | ||||
| WE-PDF SMT Power Inductor, 22 µH, 4.7 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance22 µH | Rated Current4.7 A | Saturation Current3.5 A | Self Resonant Frequency17 MHz | MountSMT | – | DC Resistance37.3 mΩ | Size1064 | VersionSMT | – | – | – | – |