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Numéro de référence | FR9810 | ||
Description | 500KHz Synchronous PWM-Buck DC/DC Converter | ||
Fabricant | Fiti | ||
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fitipower integrated technology lnc. Preliminary
FR9810
21V, 6A, 500KHz Synchronous PWM-Buck
DC/DC Converter
Description
FR9810 is a high-efficiency synchronous mode
step-down DC/DC converter that employs a special
process technique to obtain very low RDS(ON) for
the internal metal–oxide–semiconductor field-effect
transistor (MOSFET), with operation voltage in a
wide 4.75V to 21V input voltage range. The output
current is over 6A, and the efficiency is over 90%.
Controller circuit design by a particular current mode
operation provides fast transient response and
eases loop stabilization.
This product has a very low standby current less
than 1µA in shutdown mode. When the
pin
voltage is less than 0.4V, FR9810 will turn off the
switching voltage regulator function and enter the
standby mode. Fault protection includes current
protect mode over current protection (OCP), voltage
protect mode under voltage lockout protection
(UVLO), and internal thermal shutdown.
This high-efficiency current mode step-down “Green
Power Converter” Fitipower offers the standard
small-outline integrated chip (SOIC) package with an
exposed pad.
Features
● Internal MOSFET RDS(ON) (high side/low side):
120mΩ/20mΩ typ.
● Operation voltage: 4.75V to 21V
● Continuous output current support: 6A
● Feedback voltage: 0.805V
● High efficiency (up to 90%)
● Oscillation frequency (typical): 500 KHz
● Sync to external clock from 300 KHz to 800 KHz
● Internal compensation
● OCP/UVLO protection
● Over Temperature Protection (OTP) with hiccup
mode
● < 1µA shutdown current
● Thermal Enhanced SOP-8(Exposed Pad)
Package
● RoHS Compliant
Applications
● Networking equipment
● OLPC, Netbooks
● Distributed power systems
● LCD monitors/TVs/STBs
● External HDDs
● Security Systems
Pin Assignments
SP Package (SOP- 8 Exposed pad )
Ordering Information
FR9810□□□
TR: Tape / Reel
G: Green
Package Type
SP: SOP-8(Exposed Pad)
Figure 1. Pin Assignment of FR9810
FR9810-Preliminary 0.1-FEB-2011
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Pages | Pages 9 | ||
Télécharger | [ FR9810 ] |
No | Description détaillée | Fabricant |
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