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AMC3100, AMC3100DBFT, AMC317

Table of contents:
Info of AMC3100
Info of AMC3100DBFT
Info of AMC317

AMC3100, AMC3100DBFT, AMC317 Selling Leads, Datasheet

MFG:ADDTEK Package Cooled:N/A D/C:07+

AMC3100, AMC3100DBFT, AMC317 Datasheet download

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Part Number: AMC3100

MFG: ADDTEK

Package Cooled: N/A

D/C: 07+

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AMC3100 General Description

The AMC3100 is a high efficiency synchronous buck DC/DC converter using a constant frequency, current mode architecture. Adjustable version and fixed output voltages of 1.2V, 1.5V and 1.8V are available. 300uA low supply current at no load and <1A supply current at shutdown. The 2.5V to 5.5V input voltage range makes the AMC3100 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications.

Switching frequency is internally set at 1.5MHz, allowing using small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage.

The AMC3100 is available in a low profile (1mm) Thin SOT-23-5L package.

AMC3100 Maximum Ratings

Input Voltage, VIN                                             -0.3V to 6V
RUN, VFB Voltage                                              -0.3V to VIN
SW Voltage                                                      -0.3 to VIN+0.3V
P-Channel Switch Source Current (DC)              800mA
N-Channel Switch Sink Current (DC)                  800mA
Peak SW Sink and Source Current                     1.3A
Operating Temperature Range (Note 2)             -40 to 85
Junction Temperature, TJ(Note 3)                     125
Storage Temperature Range                              -60 to 150
Lead Temperature (soldering, 10 seconds)         300

Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Note 2: The AMC3100 is guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the 40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls.
Note 3: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula: TJ = TA + (PD x JA).

AMC3100 Features

` High Efficiency: Up to 96%
` 600mA Output Current at VIN=3V
` 2.5V to 5.5V Input Voltage Range
` 1.5MHz Constant Switching Frequency
` No Schottky Diode Required
` 100% Duty Cycle as Low Dropout Operation
` 0.6V Reference Voltage Allows 0.6V Minimum Output Voltage
` <1A Shutdown Mode Supply Current
` Current Mode Operation for Excellent Line and Load Transient Response
` Over-temperature Protected
` 4KV HBM ESD Protection
` 5-Pin Thin SOT-23 package

AMC3100 Typical Application

· PDA, Personal Media Player
· Smart Phone
· Digital Still Camera, Video Camcorder
· Portable Instruments
· Bluetooth Headset

AMC3100 Connection Diagram

AMC317 General Description

The AMC317 series is a 3-terminal adjustable regulator featuring output current of typical 1.2A over a wide output range from 1.2V to 20V. Only two external resistors are required to set the output voltage. This feature provides better line and load regulation than fixed regulators.

Also, the AMC317 series offers full overload protection, current limit, and thermal protection features. In most applications, no capacitor is required for the AMC317. However, if the device is located far from the input filter capacitor, then an input bypass will be required. Also, in order to improve the transient response, an output capacitor is recommended.

AMC317 Maximum Ratings

Input-Output Differential Voltage VD ..................................................................20V
Operating Junction temperature
Plastic (T, ST Package) ...................................................................................150°C
Storage Temperature Range ......................................................... -65°C to 150°C
Lead temperature (Soldering, 10 seconds) ....................................................300°C
Note 1: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal.

AMC317 Features

•Output current capability of 1.2A
•Wide output voltage range adjustable from 1.2V to 20V
•Ripple rejection typically 80 dB
•Typically 0.1% load regulation
•Built-in over current, over temperature and overload protection.
•Internal thermal overload protection
•Available in 3-Lead TO-220, and surface mount 3-Lead TO-263.
•Identical pin assignment to earlier LM317 series.

AMC317 Typical Application

• Voltage Regulators
• Power Supplies
• Current Regulators
• Switching Regulators
• Current Limiter
• Constant Current Battery Charger
• Current Limited Charger

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