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參數(shù)資料
型號(hào)： TPS62111RSATG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 2.4 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PQCC16
封裝： GREEN, PLASTIC, QFN-16
文件頁(yè)數(shù)： 1/28頁(yè)
文件大小： 842K
代理商： TPS62111RSATG4
1
FEATURES
DESCRIPTION
APPLICATIONS
TYPICAL APPLICATION
SYNC
GND
PGND
SW
V
O
=3.3V
6.8
H
m
C
=22
F
6.3V
O
m
VIN
LBI
C =10
F
25V
I
m
1
F
m
V =3.8Vto17V
I
VIN
EN
VINA
PGND
GND PwPD
AGND
TPS62111
SW
LBO
PG
1MW
FB
TPS62111
EfficiencyvsOutputCurrent
100
0
90
70
40
20
80
50
60
30
10
0.0001
0.001
0.01
0.1
10
1
I
-OutputCurrent- A
O
Efficiency-%
5V
4.2V
12V
8.4V
V
=3.3V
T
PFMMode
O
A =25 C
o
www.ti.com .................................................................................................................................................... SLVS585A – JULY 2005 – REVISED FEBRUARY 2009
17-V, 1.5-A, SYNCHRONOUS STEP-DOWN CONVERTER
High-Efficiency Synchronous Step-Down
The TPS6211x devices are a family of low-noise
Converter With up to 95% Efficiency
synchronous step-down dc-dc converters that are
ideally suited for systems powered from a 2-cell Li-ion
3.1-V to 17-V Operating Input Voltage Range
battery or from a 12-V or 15-V rail.
Adjustable Output Voltage Range From
The TPS6211x is a synchronous PWM converter with
1.2 V to 16 V
integrated
N-
and
P-channel
power
MOSFET
Fixed Output Voltage Options Available in
switches.
Synchronous
rectification
is
used
to
3.3 V and 5 V
increase efficiency and to reduce external component
Synchronizable to External Clock Signal up to
count. To achieve highest efficiency over a wide
1.4 MHz
load-current
range,
the
converter
enters
a
power-saving,
pulse-frequency
modulation
(PFM)
Up to 1.5-A Output Current
mode at light load currents. Operating frequency is
High Efficiency Over a Wide Load-Current
typically 1 MHz, allowing the use of small inductor
Range Due to PFM/PWM Operation Mode
and
capacitor
values.
The
device
can
be
100% Maximum Duty Cycle for Lowest
synchronized to an external clock signal in the range
Dropout
of 0.8 MHz to 1.4 MHz. For low-noise operation, the
converter can be operated in PWM-only mode. In the
20-A Quiescent Current (Typical)
shutdown mode, the current consumption is reduced
Overtemperature and Overcurrent Protected
to less than 2 A. The TPS6211x is available in the
Available in 16-Pin QFN Package
16-pin (RSA) QFN package, and operates over a
free-air temperature range of –40°C to 85°C.
Point-of-Load Regulation From 12-V Bus
Organizers, PDAs, and Handheld PCs
Handheld Scanners
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2005–2009, 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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TPS62112RSAR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.5A 17V Sync Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62112RSARG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.5A 17V Sync Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62112RSAT 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.5A 17V Sync Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62112RSAT 制造商:Texas Instruments 功能描述:IC STEP-DWN CONV 5V 1.5A 16-VQFN 制造商:Texas Instruments 功能描述:IC, STEP-DWN CONV 5V 1.5A 16-VQFN 制造商:Texas Instruments 功能描述:IC, STEP-DWN CONV 5V 1.5A 16-VQFN; Primary Input Voltage:17V; No. of Outputs:1; Output Voltage:16V; Output Current:1.5A; Voltage Regulator Case Style:QFN; No. of Pins:16; Operating Temperature Min:-40C; Operating Temperature ;RoHS Compliant: Yes
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