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LINEAR LT3460 Data Sheet

Summary

Optimize power in portable and critical systems with this high-efficiency step-up DC/DC converter. Featuring a rapid 1.3MHz switching frequency, it reliably boosts voltage up to 36V while accommodating wide input ranges from 2.5V to 16V. The supporting manual provides comprehensive technical details, including electrical characteristics, typical performance curves across varying loads, and detailed guides necessary for integration into demanding applications such as digital cameras, medical equipment, or XDSL power supplies.

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查询LT3460供应商

LT3460

1.3MHz Step-Up DC/DC Converter in SC70 and Thin SOT FEATURES DESCRIPTIO

1.3MHz Switching Frequency The LT®3460 is a general purpose step-up DC/DC con- High Output Voltage: Up to 36V verter. The LT3460 switches at 1.3MHz, allowing the use 300m A Integrated Switch of tiny, low cost and low height capacitors and inductors. 12V at 70m A from 5V Input The constant frequency results in low, predictable output

5V at 60m A from 3.3V Input noise that is easy to filter.

Wide Input Range: 2.5V to 16V

The high voltage switch in the LT3460 is rated at 38V,

Uses Small Surface Mount Components

making the device ideal for boost converters up to 36V.

Low Shutdown Current: <1µA

The LT3460 can generate 12V at up to 70m A from a 5V

Low Profile (1mm) SC70 and SOT-23 (Thin SOTTM)

supply.

Packages

The LT3460 is available in SC70 and SOT-23 packages.

APPLICATIO , LTC and LT are registered trademarks of Linear Technology Corporation.

Thin SOT is a trademark of Linear Technology Corporation

Digital Cameras CCD Bias Supply XDSL Power Supply

EF FI CI EN CY

TFT-LCD Bias Supply Local 5V or 12V Supply Medical Diagnostic Equipment Battery Backup

TYPICAL APPLICATIO Efficiency

5V to 12V, 70m A Step-Up DC/DC Converter

22µH VOUT

VIN 130k 22p F4.7µF

LT3460

OFF ON FBSHDN

LOAD CURRENT (m A)

GND 15k

Switching Waveforms

3460 F01 VSW

5V/DIV

100m A/DIV

0.2µs/DIV 3460 F01b

Page Summary Contents For LINEAR LT3460 Data Sheet

Page 1 查询LT3460供应商 LT3460 1.3MHz Step-Up DC/DC Converter in SC70 and Thin SOT FEATURES DESCRIPTIO 1.3MHz Switching Frequency The LT®3460 is a general purpose step-up DC/DC con- High Output Voltage: Up to 36V...
Page 2 LT3460 ABSOLUTE AXI RATI GS (Note 1) Input Voltage (VIN) 16V Operating Ambient SW Voltage 38V Temperature Range (Note 2) –40°C to 85°C FB Voltage 5V Maximum Junction Temperature 125°C SHDN Voltage 16V...
Page 3 IQ (m A) LT3460 TYPICAL PERFOR A CE CHARACTERISTICS Quiescent Current Switching Frequency SHDN Pin Bias Current ES AT (m V) FE ED BA CK IA CU RR EN (n A) SHDN = 16V SW IT CH IN FR EQ UE NC (M Hz SHDN ...
Page 4 LT3460 PI FU CTIO S (Thin SOT/SC70 Packages) SW (Pin 1/Pin 1): Switch Pin. Connect inductor/diode SHDN (Pin 4/Pin 4): Shutdown Pin. Tie to 1.5V or higher here. Minimize trace at this pin to reduce EMI...
Page 5 LT3460 PHASE (DEG) OPERATIO Feedback Loop Compensation is about 70k Hz. The LT3460 has an internal feedback compensation net- The feedback loop gain T(s) = K3 • GP(s) • GC(s). If it work as shown in F...
Page 6 LT3460 GA IN (d B) OPERATIO margin, CF should be chosen so that the midpoint fre- The feed-forward capacitor increases the gain at high quency between the zero and the pole is at the cross over freque...
Page 7 LT3460 TYPICAL APPLICATIO 5V to 12V Step-Up Converter Efficiency 22µH VOUT VIN 130k 22p FC1 LT3460 SHDN FBSHDN C2 GND 15k C1: TAIYO YUDEN X5R JMK212BJ475 C2: TAIYO YUDEN X5R EMK212BJ105 D1: CENTRAL SE...
Page 8 LT3460 TYPICAL APPLICATIO 3.3V to 12V Step-Up Converter Efficiency VIN 130k 22p F 4.7µF SW LT3460 C2 1µF FBSHDN GND 15k 3460 TA03C1: TAIYO YUDEN X5R JMK212BJ475 C2: TAIYO YUDEN X5R EMK212BJ105 D1: CEN...
Page 9 LT3460 TYPICAL APPLICATIO 12V to 36V Step-Up Converter L1 D1 Load Step Response VIN SW 100m V/DIV LT3460 C2 0.22µF FBSHDN GND 10k 4m A ILOAD 2m A 3460 TA04C1: TAIYO YUDEN X5R EMK212BJ105 C2: TAIYO YUD...
Page 10 LT3460 PACKAGE DESCRIPTIO S5 Package 5-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1635) 2.90 BSC MAX REF (NOTE 4) 1.22 REF 3.85 MAX 1.4 MIN2.62 REF (NOTE 4)2.80 BSC PIN ONE RECOMMENDED SOLDER PAD...
Page 11 LT3460 PACKAGE DESCRIPTIO SC6 Package 6-Lead Plastic SC70 (Reference LTC DWG # 05-08-1638) MAX REF (NOTE 4) 1.16 REF INDEX AREA (NOTE 6) 3.26 MAX 0.96 MIN2.1 REF (NOTE 4) PIN 1 RECOMMENDED SOLDER PAD ...
Page 12 LT3460 TYPICAL APPLICATIO 5V to 5V SEPIC Efficiency C3 L1 VIN = 6.5V 0.22µF D1 22µH VOUT 3V TO 10V 50m A VIN = 5V VIN = 4V VIN 30k 50p F 1µF SW 22µH LT3460 C2 FBSHDN 1µF GND 10k 3460 TA06C1, C2: TAIYO...

Manual Details

Brand Linear
Pages 12
File Size 223.19 KB
Published June 16, 2026
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Frequently Asked Questions

What voltage range can the LT3460 handle as an output?

It supports high output voltages up to 36V.

What are the acceptable input voltage parameters for this converter?

The device accepts a wide input range from 2.5V (minimum) up to 16V (maximum).

How can I control the LT3460's operation using the pins?

Connect the SHDN pin to enable the device at 1.5V or higher, and tie it below 0.4V to disable it.

What physical packages are available for this converter?

The LT3460 is available in SC70 and SOT-23 (ThinSOT) packages.