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FAN49100: Buck-Boost Regulator, 2.5 A, 1.8 MHz, TinyPower™

Datasheet: Regulator - TinyPower™, Buck-Boost: 2.5 A, 1.8 MHz
Rev. 2 (2382kB)
Product Overview
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The FAN49100 is a high efficiency buck-boost switching mode regulator which accepts input voltages either above or below the regulated output voltage. Using full-bridge architecture with synchronous rectification, the FAN49100 is capable of delivering up to 2.5 A at 3.6 V input while regulating the output at 3.3 V. The FAN49100 exhibits seamless transition between step-up and step-down modes reducing output disturbances. At moderate and light loads, Pulse Frequency Modulation (PFM) is used to operate the device in power-save mode to maintain high efficiency. In PFM mode, the part still exhibits excellent transient response during load steps. At moderate to heavier loads or Forced PWM mode, the regulator switches to PWM fixed-frequency control. While in PWM mode, the regulator operates at a nominal fixed frequency of 1.8 MHz, which allows for reduced external component values.
Features
 
  • 24 µA Typical PFM Quiescent Current
  • Above 95% Efficiency
  • Total Layout Area = 11.61 mm2
  • Input Voltage Range: 2.5 V to 5.5 V 1.8 MHz Fixed-Frequency Operation in PWM Mode
  • Automatic / Seamless Step-up and Step-down Mode Transitions
  • Forced PWM and Automatic PFM/PWM Mode Selection
  • 0.5 µA Typical Shutdown Current
  • Low Quiescent Current Pass-Through Mode
  • Internal Soft-Start and Output Discharge
  • Low Ripple and Excellent Transient Response
  • Internally Set, Automatic Safety Protections (UVLO, OTP, SCP, OCP)
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
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Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FAN49100AUC330X Active
Pb-free
Halide free
FAN49100 WLCSP-20 567QK 1 260 Tape and Reel 3000 $0.4667
FAN49100AUC360X Active
Pb-free
Halide free
FAN49100 WLCSP-20 567QK 1 260 Tape and Reel 3000 $0.4667
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
FAN49100AUC330X  
 $0.4667 
Pb
H
 Active   
Step-Up/Step-Down
Voltage Mode
2.5
5.5
3.3
2.5
96
1800
WLCSP-20
FAN49100AUC360X  
 $0.4667 
Pb
H
 Active   
Step-Up/Step-Down
Voltage Mode
2.5
5.5
3.6
2.5
96
1800
WLCSP-20
Case Outlines
567QK   
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