SC121 Boost Converter Overview

Description

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Category
Sub-Category

SC121 is a 5.00 V, 1.20 A switch current limit sync Boost Converter from . The input voltage from 0.87 V to 4.50 V  can be boosted into an output voltage ranging from 1.80 V to 5.00 V.

Features of the Boost Converter are fixed 1200 kHz switching frequency, a typical inductor size of 4.7 µH and it offers a peak efficiency of  up to 89 %. The minimum external component count is 5 and SC121 is available in 1 package option(s): MLPD-UT-6 .

For SC121 replacement search, select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

ParameterValueReplacement
Search Filter
V-IN min. 0.87 V
V-IN max. 4.50 V
Current-Limit typ.? 1.20 A
V-OUT min. 1.80 V
V-OUT max. 5.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 1200 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. -50 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 4.7 µH
Inductor suggested by Würth Elektronik WE Selector
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 89 %
Component count min. 5
current limit adjustable no
Nr.of package options 1
CSP
SC70
SOT
MSOP
QFN/DFN MLPD-UT-6
SO/SOIC
SOP
DIP
TO
DDPAK

SC121 Datasheet

Link to the most up-to-date SC121 datasheet and the product page for EVM, tools and support information.

SC121

SC121 Price breaks and distributor sample stock

SC121 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with SC121 stock available

Available Distributors with stock: 0

no online Distributor with SC121 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to SC121. Optional, compare SC121 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AS1326 AS1326 product overviewAS1326 product overview AMS TDFN-10
0% AP6714 AP6714 product overviewAP6714 product overview Diodes MSOP-10
0% ISL9113 ISL9113 product overviewISL9113 product overview Intersil WLCSP-6, DFN-8
0% LTC3528 LTC3528 product overviewLTC3528 product overview Linear Technology DFN-8
0% MAX849 MAX849 product overviewMAX849 product overview Maxim Integrated SO-16
0% MP3120 MP3120 product overviewMP3120 product overview MPS TSOT23-6
0% SC120 SC120 product overviewSC120 product overview Semtech SOT23-6, MLPD-UT-6
0% TPS61020 TPS61020 product overviewTPS61020 product overview Texas Instruments QFN-10
0% TPS61029 TPS61029 product overviewTPS61029 product overview Texas Instruments QFN-10
0% TPS61200 TPS61200 product overviewTPS61200 product overview Texas Instruments QFN-10
0% XC9128 XC9128 product overviewXC9128 product overview Torex MSOP-10, USP-10B
0% XC9129 XC9129 product overviewXC9129 product overview Torex MSOP-10, USP-10B
0% XC9131 XC9131 product overviewXC9131 product overview Torex USP-10B
0% XC9135 XC9135 product overviewXC9135 product overview Torex USP-10
0% XC9136 XC9136 product overviewXC9136 product overview Torex USP-10
0% ISL9113A ISL9113A product overviewISL9113A product overview Intersil DFN-8
0% RP402-K001A-B-C-D RP402-K001A-B-C-D product overviewRP402-K001A-B-C-D product overview Ricoh DFN-8
0% RP402-K002A-B RP402-K002A-B product overviewRP402-K002A-B product overview Ricoh DFN-8
0% TPS61029-Q1 TPS61029-Q1 product overviewTPS61029-Q1 product overview Texas Instruments QFN-10
10% ISL9111 ISL9111 product overviewISL9111 product overview Intersil SOT23-6
10% ISL9111A ISL9111A product overviewISL9111A product overview Intersil SOT23-6
10% NCP1421 NCP1421 product overviewNCP1421 product overview ON Semiconductor Micro8u2122-8
10% NCP1422 NCP1422 product overviewNCP1422 product overview ON Semiconductor DFN-10
25% MAX1700 MAX1700 product overviewMAX1700 product overview Maxim Integrated QSOP-16
25% MAX1701 MAX1701 product overviewMAX1701 product overview Maxim Integrated QSOP-16
25% MAX1705 MAX1705 product overviewMAX1705 product overview Maxim Integrated QSOP-16
25% MAX1760 MAX1760 product overviewMAX1760 product overview Maxim Integrated TDFN-EP-10, uMAX-10
25% MAX1765 MAX1765 product overviewMAX1765 product overview Maxim Integrated TSSOP-EP-16
25% MP3115 MP3115 product overviewMP3115 product overview MPS SOT23-6
50% AS1337 AS1337 product overviewAS1337 product overview AMS TDFN-8
50% LTC3429 LTC3429 product overviewLTC3429 product overview Linear Technology TSOT23-6
50% LTC3535 LTC3535 product overviewLTC3535 product overview Linear Technology DFN-12
50% LTC3537 LTC3537 product overviewLTC3537 product overview Linear Technology QFN-16
50% MAX1706 MAX1706 product overviewMAX1706 product overview Maxim Integrated QSOP-16
50% MCP1640 MCP1640 product overviewMCP1640 product overview Microchip SOT23-6, DFN-8
50% NCP1423 NCP1423 product overviewNCP1423 product overview ON Semiconductor Micro-10
50% TPS61028 TPS61028 product overviewTPS61028 product overview Texas Instruments QFN-10
50% TPS61070 TPS61070 product overviewTPS61070 product overview Texas Instruments SOT23-6
50% TPS61071 TPS61071 product overviewTPS61071 product overview Texas Instruments SOT23-6
50% TPS61072 TPS61072 product overviewTPS61072 product overview Texas Instruments SOT23-6
50% TPS61260 TPS61260 product overviewTPS61260 product overview Texas Instruments SON-6
50% ADP1607 ADP1607 product overviewADP1607 product overview Analog Devices LFCSP-6
50% TPS61071-Q1 TPS61071-Q1 product overviewTPS61071-Q1 product overview Texas Instruments SOT23-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of SC121.

V-IN min. 0.87 V, Current-Limit typ. 1.2 A, V-OUT max. 5 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74407000018 0.2 9.0 9.0 3.51 8 x 8 x 2
744373210022 0.2 7.5 18.0 6.60 4.45 x 4.06 x 1.2
744373240022 0.2 9.5 17.0 6.60 4.45 x 4.06 x 2
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