LTC1555LEGN-1.8#PBF Regulated Step-Up Charge Pumps by Analog Devices

Status: Production
Series: LTC1555L-1.8
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC1555L-1.8 provides power conversion and level shifting needed for low voltage GSM and WCDMA cellular telephones to interface with either 1.8V, 3V or 5V subscriber identity modules (SIMs). The part contains a patented buck/boost charge pump DC/DC converter* that delivers a regulated VCC supply voltage to the SIM card. Input voltage may range from 2.6V to 6V allowing direct connection to the battery. The output voltage may be programmed to 1.8V, 3V, 5V or direct connection to the VIN pin. Internal level translators allow controllers operating with supplies as low as 1.425V to interface with 1.8V, 3V and 5V SIMs. A soft-start feature limits inrush current at turn-on, mitigating start-up problems that may result when the input is supplied by another low-power DC/DC converter. Battery life is maximized by 32µA operating current, and 1µA shutdown current. Board area is minimized by the miniature 16-pin narrow SSOP packages and the need for only three small external capacitors.

Where to Buy

Prices starting from US$3.20

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$3.20
1,414
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$4.24
0
in stock
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Features

Buck/Boost Charge Pump Generates 1.8V, 3V or 5V
Input Voltage Range: 2.6V to 6V
Controller VCC Range: 1.425V to 4.4V
>10kV ESD on All SIM Contact Pins
Short-Circuit and Overtemperature Protected
Meets all ETSI and IMT-2000 SIM Interface Requirements
1.8V to 5V Signal Level Translators
Very Low Operating Current: 32µA
Very Low Shutdown Current: <1µA
Soft-Start Limits Inrush Current at Turn-On
1MHz Switching Frequency
Available in 16-Pin Narrow SSOP Package

Last 6 months Inventory & Pricing History


Alternative Descriptions

SIM Pwr S & Level Translator | Analog Devices
SIM Power Supply and Level Translator 16-Pin SSOP N Tube | Richardson RFPD


LTC1555LEGN-1.8#PBF Power Management ICs - PMIC by Linear Technology

BUCK/BOOST LEVEL TRNSLTR 1MHZ 16SSOP

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

No. of Inputs -
Output Current 20mA
Propagation Delay -
No. of Pins 16Pins
Logic Case Style SSOP
Supply Voltage Min 2.6V
Supply Voltage Max 6V
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Logic Type Voltage Level Translator
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 1555
Brief Features Buck/Boost Charge Pump Generates Short-Circuit & Overtemperature Protected
IC Function Smart Card Readers SIM Interface
IC Package Type SSOP
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +85°C
Output Voltage 1.8V
Primary Input Voltage 6V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC1555LEGN-1.8#PBF?

Additional datasheets, footprints and schematics for LTC1555LEGN-1.8#PBF are listed on our Part Details page. You can also find images and similar parts to LTC1555LEGN-1.8#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC1555LEGN-1.8#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC1555LEGN-1.8#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC1555LEGN-1.8#PBF fall under?

The LTC1555LEGN-1.8#PBF is listed under Regulated Step-Up Charge Pumps.

Can I view similar or alternative parts?

You can view similar parts to LTC1555LEGN-1.8#PBF when available in the Regulated Step-Up Charge Pumps range under the specifications section at the bottom of the details page.

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Is the LTC1555LEGN-1.8#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LTC1555LEGN-1.8#PBF have stock available?

Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for LTC1555LEGN-1.8#PBF.

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