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TMI5120

TMI5120
Retail price
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Market price
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Number of views:
1000
Product serial number
Vin Range (V):
0.85 to 4.5
Vout_Max (V):
4.5
Isw_limit (A):
0.85
Switching Frequency (Hz):
300k
Vfb (V):
Fixed Vout
Iq (μA):
20
HSFET Rds(on) (Ω):
0.65
LSFET Rds(on) (Ω):
0.45
Control Mode:
CM
Functions:
Sync.Boost / Fixed 2.2V,2.5V,2.8V,3.0V, 3.3V Output Voltage
Package:
SOT23
Status:
MP
Quantity
-
+
Stock:
FEATURES
Parameters
GENERAL DESCRIPTION
APPLICATIONS
TYPICAL APPILCATION

• Up to 92%Efficiency
• Up to 100mA Output Current from a Single AA Cell
• Low Start-up Voltage:0.85V
• Internal Synchronous Rectifier
• Output Voltage:2.2V/3.0V/3.3V(Fixed Version)
• Programmable Output Voltage(TMI5120C)
• Low Device Quiescent Current:20μA
• Shutdown Current:<1μA
• Available in SOT23(TMI5120),SOT23-6(TMI5120A and TMI5120E)and SOT23-5(TMI5120B)andSC-70-6(TMI5120C)Packages

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The TMI5120/5120A/5120B/5120C/5120Eare a series of compact,high-efficiency,synchronous step DC-DC Converters.It provides an easy-to-use power by either single-cell,two-cell,or three-cell alkaline,NiCd,NiMH,and single-cell Li-Ion or Li-Polymer batteries.
The boost converter is based on a PFM mode controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents.
The output voltage can be set internally to a fixed output voltage or is programmed by an external resistor divider(TMI5120C).
For standby applications,the device consumes only 20μA from battery while operating at no load,and the device feature low shutdown current of under 1μA.

• One,Two and Three Cell Alkaline and NiMH/NiCdPortable Products
• Single-Cell Li-Ion Powered Devices
• Personal Medical Products
• Wireless Handsets
• Handheld Instruments
• Bluetooth Handsets

Figure 1.Basic Application Circuit of TMI5120

Figure 2.Basic Application Circuit of TMI5120A

Figure 3.Basic Application Circuit of TMI5120B

Figure 4.Basic Application Circuit of TMI5120C

Figure 5.Basic Application Circuit of TMI5120E

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