FAN23SV70AMPX: 20 A Synchronous Buck Regulator
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The FAN23SV70AMX is a highly efficient synchronous buck regulator. The regulator is capable of operating with an input range from 7 V to 24 V and supporting up to 20 A load currents. The device can operate from a 5 V rail (±10%) if VIN, PVIN, and PVCC are connected together to bypass the internal linear regulator.
The FAN23SV70A utilizes ON Semiconductor’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. The device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode at light loads.
Switching frequency and over-current protection can be programmed to provide a flexible solution for various applications. Output over-voltage, under-voltage, over-current, and thermal shutdown protections help prevent damage to the device during fault conditions. After thermal shutdown is activated, a hysteresis feature restarts the device when normal operating temperature is reached.
The FAN23SV70A utilizes ON Semiconductor’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. The device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode at light loads.
Switching frequency and over-current protection can be programmed to provide a flexible solution for various applications. Output over-voltage, under-voltage, over-current, and thermal shutdown protections help prevent damage to the device during fault conditions. After thermal shutdown is activated, a hysteresis feature restarts the device when normal operating temperature is reached.
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Technical Documentation & Design Resources
| Data Sheets (1) | Videos (1) |
| Package Drawings (1) |
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Availability & Samples
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Specifications
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Intaractive Block Diagram
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Case Outline |
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| FAN23SV70AMPX | Active |
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FAN23SV70AMPX | PQFN-34 | 483AM | 1 | 260 | Tape and Reel | 3000 | $1.5142
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| Market Leadtime (weeks) | : | 13 to 16 |
Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
FAN23SV70AMPX
$1.5142
Pb
A
H
P
Active
Step-Down
Hysteretic
7
24
Adjustable
20
≥90%
Adjustable
PQFN-34
Case Outlines
483AM
Application
Diagram - Block
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