LTC1555CGN Linear Technology, LTC1555CGN Datasheet
LTC1555CGN
Specifications of LTC1555CGN
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LTC1555CGN Summary of contents
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... Battery life is maximized operating current and 1 A shutdown current. Board area is minimized by minia- ture 16- and 20-pin narrow SSOP packages and the need for only three small external capacitors. , LTC and LT are registered trademarks of Linear Technology Corporation. GSM Cellular Telephone SIM Interface V IN ...
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... V Output Ripple RATINGS Temperature Range LTC1555C/LTC1556C .............................. LTC1555I/LTC1556I ........................... – 0.3V) Extended Commercial Operating Temperature Range CC (Note 2) ............................................. – Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER CIN 1 RIN 2 LTC1555CGN DATA 3 LTC1555IGN DDRV 20-LEAD PLASTIC SSOP T = 150 C, JMAX , SIM digital pins floating, EN, FB pins tied to GND ...
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ELECTRICAL CHARACTERISTICS V = 2.7V to 10V 1.8V to 5.5V, controller digital pins tied (LTC1556 0 unless otherwise specified. OUT PARAMETER CONDITIONS V Short-Circuit Current V CC ...
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LTC1555/LTC1556 W U TYPICAL PERFORMANCE CHARACTERISTICS Operating Current vs Input Voltage 120 NO EXTERNAL LOAD 100 – INPUT VOLTAGE (V) IN 1555/56 G01 V Output ...
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PIN FUNCTIONS LTC1555/LTC1556 CIN (Pin 1): Clock Input Pin from Controller. RIN (Pin 2): Reset Input Pin from Controller. DATA (Pin 3): Controller Side Data Input/Output Pin. Can be used for single pin bidirectional data transfer between ...
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LTC1555/LTC1556 PIN FUNCTIONS LTC1556 Only EN (Pin 5): Auxiliary LDO/Power Switch Enable Pin. A logic high on this pin from the controller will enable the auxiliary LDO output. When the LDO is disabled, the LDO output will ...
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U U APPLICATIONS INFORMATION The LTC1555/LTC1556 perform the two primary func- tions necessary for 3V controllers (e.g., GSM cellular telephone controllers, smart card readers, etc.) to com- municate with 5V SIMs or smart cards. They produce a regulated 5V V ...
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LTC1555/LTC1556 U U APPLICATIONS INFORMATION reduce the ripple. A larger C capacitor ( greater) OUT will reduce both the low and high frequency ripple due to the lower C charging and discharging dV/dt and the OUT lower ESR ...
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U U APPLICATIONS INFORMATION I/O pin on the SIM side. The second method is to use the DDRV pin to send data to the SIM and use the DATA pin to receive data from the SIM. When the DDRV pin ...
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LTC1555/LTC1556 PACKAGE DESCRIPTION 0.007 – 0.0098 (0.178 – 0.249) 0.016 – 0.050 (0.406 – 1.270) * DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH ...
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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... VCC 10 F GND 1555/56 TA02 COMMENTS Adjustable, 3V/5V, 3.3V/5V Versions I = 20mA (V 2V 50mA (V 3V) OUT IN OUT IN LTC1522 Without Shutdown and Packaged in SOT- 20mA (V 3V OUT IN Q 1mV Ripple at 900kHz P – 100mA 15556f LT/TP 0398 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1997 ...