FAN5308MP Fairchild Semiconductor, FAN5308MP Datasheet
FAN5308MP
Available stocks
Related parts for FAN5308MP
FAN5308MP Summary of contents
Page 1
... Communications Equipment Typical Application C IN 10µF FAN5308 Rev. 1.0.1 ©2005 Fairchild Semiconductor Corporation Description Designed for use in battery-powered applications, the FAN5308 is a high-efficiency, low-noise synchronous PWM current mode IN and Pulse Skip (Power Save) mode DC-DC converter. It can provide up to 800mA of output current over a wide input range from 2 ...
Page 2
Pin Assignment Pin Description Pin No. Pin Name P1 AGND Analog Ground. P1 must be soldered to the PCB ground Supply Voltage Input PGND Power Ground. This pin is connected to the internal MOSFET switches. This ...
Page 3
Absolute Maximum Ratings V IN Voltage On Any Other Pin Lead Soldering Temperature (10 seconds) Junction Temperature Storage Temperature Thermal Resistance-Junction to Tab (θ Electrostatic Discharge Protection (ESD) Level (Note 3) Recommended Operating Conditions Parameter Supply Voltage Range Output Voltage ...
Page 4
Electrical Characteristics 0.6V(min. 2.5V) to 5.5V OUT otherwise noted. Typical values are at T Symbol Parameter V Input Voltage IN I Quiescent Current Q Shutdown Supply Current Undervoltage Lockout Threshold V Enable High Input ...
Page 5
Typical Performance Characteristics T = 25° 10µ 20µ 3.3µ OUT Efficiency vs. Load Current 100 3. 3.6V OUT IN ...
Page 6
Typical Performance Characteristics T = 25° 10µ 20µ 3.3µ OUT PWM Mode Time (1µs/div) Load Transient Response 100mA V = 1.2V OUT Time (10µs/div) Start-Up Response Time (100µs/div) FAN5308 Rev. 1.0.1 ...
Page 7
Block Diagram DIGITAL SOFT START FB 0.8V GND IS SLOPE COMPENSATION Detailed Operation Description The FAN5308 is a step-down converter operating in a current- mode PFM/PWM architecture with a typical switching frequency of 1.3MHz. At moderate to heavy loads, the ...
Page 8
UVLO and Soft Start The reference and the circuit remain reset until the V its UVLO threshold. The FAN5308 has an internal soft-start circuit that limits the in- rush current during start-up. This prevents possible voltage drops of the input ...
Page 9
Therefore, use wide traces for high current paths and place the input capacitor, the inductor, and the output capacitor as close as possible to the integrated circuit terminals. In order to mini- mize voltage stress to the device resulting from ...
Page 10
... Mechanical Dimensions 3x3mm 6-Lead MLP Ordering Information Product Number FAN5308 FAN5308 Rev. 1.0.1 Output Voltage Package Type Adjustable 3x3mm 6-Lead MLP 10 Order Code FAN5308MPX www.fairchildsemi.com ...
Page 11
... TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ACEx™ FAST ActiveArray™ FASTr™ Bottomless™ FPS™ CoolFET™ FRFET™ CROSSVOLT™ ...