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參數(shù)資料
| 型號： | TPS57114QRTERQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, WQFN-16 |
| 文件頁數(shù)： | 1/37頁 |
| 文件大小： | 1309K |
| 代理商： | TPS57114QRTERQ1 |
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PH
VIN
POWERPAD
BOOT
VSENSE
COMP
TPS57114-Q1
EN
RT /CLK
SS/TR
PWRGD
C ss
R T
R 3
C 1
C
BOOT
C O
LO
R 1
R 2
C I
VOUT
VIN
AGND
GND
R 4
R 5
Efficiency-%
I -OutputCurrent- A
O
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
3Vin
5Vin
f =500kHz
s
Vout=1.8V
SLVSAH5A
– DECEMBER 2010 – REVISED MARCH 2011
2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down
Switcher With Integrated FETs ( SWIFT
)
Check for Samples: TPS57114 -Q1
1
FEATURES
DESCRIPTION
The TPS57114 -Q1 device is a full featured 6 V, 4 A,
2
Qualified for Automotive Applications
synchronous step down current mode converter with
Two 12-m
(typical) MOSFETs for High
two integrated MOSFETs.
Efficiency at 4-A Loads
The TPS57114 -Q1 enables small designs by
200 kHz to 2 MHz Switching Frequency
integrating
the
MOSFETs,
implementing
current
0.8 V
± 1% Voltage Reference Over
mode control to reduce external component count,
Temperature (
–40°C to 150°C)
reducing inductor size by enabling up to 2 MHz
switching frequency, and minimizing the IC footprint
Synchronizes to External Clock
with a small 3 mm x 3 mm thermally enhanced QFN
Adjustable Slow Start/Sequencing
package.
UV and OV Power Good Output
The TPS57114 -Q1 provides accurate regulation for a
–40°C to 150°C Operating Junction
variety of loads with an accurate
±1% Voltage
Temperature Range
Reference (VREF) over temperature.
Thermally Enhanced 3mm
× 3mm 16-pin QFN
Efficiency is maximized through the integrated 12 m
Pin Compatible to TPS54418
MOSFETs and 515
μA typical supply current. Using
the enable pin, shutdown supply current is reduced to
APPLICATIONS
5.5
A by entering a shutdown mode.
Low-Voltage, High-Density Power Systems
Under voltage lockout is internally set at 2.45 V, but
Point of Load Regulation for High Performance
can be increased by programming the threshold with
a resistor network on the enable pin. The output
DSPs, FPGAs, ASICs and Microprocessors
voltage startup ramp is controlled by the slow start
Broadband, Networking and Optical
pin. An open drain power good signal indicates the
Communications Infrastructure
output is within 93% to 107% of its nominal voltage.
SIMPLIFIED SCHEMATIC
Frequency fold back and thermal shutdown protects
the device during an over-current condition.
vertical spacer
The TPS57114 -Q1 is supported in the SwitcherPro
vertical spacer
Software Tool at www.ti.com/switcherpro.
For more SWIFTTM documentation, see the TI
website at www.ti.com/swift.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
SWIFT, SwitcherPro, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright
2010–2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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