參數(shù)資料
型號： TPS51120RHBR
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 0.1 A DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PQCC32
封裝： GREEN, PLASTIC, QFN-32
文件頁數(shù)： 1/39頁
文件大?。?/td> 826K
代理商： TPS51120RHBR
www.ti.com
FEATURES
DESCRIPTION
APPLICATIONS
9
10
11
12
32
31
30
29
SKIPSEL
TONSEL
PGOOD1
EN1
EN5
EN3
PGOOD2
EN2
TPS51120RHB
(QFN32)
13
14
15
16
28
27
26
25
VBST1
DRVH1
LL1
DRVL1
VBST2
DRVH2
LL2
DRVL2
17
PGND2
8
VO2
7
COMP2
6
VFB2
5
GND
4
VREF2
3
VFB1
2
COMP1
1
VO1
18
CS2
19
VREG3
20
V5FIL
T
21
V5REG
22
VIN
23
CS1
24
PGND1
C30
NA
+
VO1
5V/6A
Q2
IRF7832
Q1
IRF7821
VO1_GND
PGND1
VBAT
+
VO2
3.3V/6A
Q4
IRF7832
Q3
IRF7821
VO2_GND
PGND2
VBAT
GND
PowerPAD
R50
5.1W
V5FILT
EN_1
P_GOOD1
P_GOOD2
EN_2
EN_LDO5
EN_LDO3
GND
R11
100 k
C10
20
F
L1
4.7
H
C1B
150
F
C1A
150
F
C11
0.1
F
C31
1 nF
R21
100 k
C21
0.1
F
C10
20
F
L2
2.2
H
C2A
150
F
C2B
150
F
R22
3.3 k
R12
3.6 k
C51
1
F
C50
10
F
C30
10
F
UDG05074
SLUS670B – JULY 2005 – REVISED FEBRUARY 2007
DUAL CURRENT MODE, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 100-mA
STANDBY REGULATORS FOR NOTEBOOK SYSTEM POWER
3.3-V and 5-V 100-mA Bootstrapped Standby
The TPS51120 is a highly sophisticated dual current
Regulators with Independent Enables
mode synchronous step-down controller. It is a full
featured controller designed to run directly off a
Selectable D-CAP Mode Enables Fast
three-
or
four-cell
Li-ion
battery
and
provide
Transient Response Less than 100 ns
high-power and 5-V and/or 3.3-V standby regulation
Selectable Low Ripple Current Mode
for all the downstream circuitry in a notebook
Less than 1% Internal Reference Accuracy
computer system. High current, 100-mA, 5-V or
3.3-V on-board linear regulators have glitch-free
Selectable PWM-only/Auto-skip Modes
switch over function to SMPS and can be kept alive
Low-side R
DS(on) Loss-less Current Sensing
independently
during
standby
state.
The
R
SENSE Accurate Current Sense Option
pseudo-constant frequency adaptive on-time control
scheme
supports
full
range
of
current
mode
Internal Soft-start and Integrated V
OUT
operation including simplified loop compensation,
Discharge Transistors
ceramic output capacitors as well as seamless
Integrated 2-V Reference
transition
to
reduced
frequency
operation
at
Adaptive Gate Drivers with Integrated Boost
light-load
condition.
Optional
D-CAP
mode
Diode
operation optimized for SP-CAP or POSCAP output
capacitors
allows
further
reduction
of
external
Power Good for Each Channel with Delay
compensation parts. Dynamic UVP supports VIN line
Timer
sag without latch off by hitting 5V UVP. No negative
Fault Disable Mode
voltage appears at output voltage node during
Supply Input Voltage Range: 4.5 V to 28 V
UVLO, UVP, and OCP, OTP or loss of VIN.
The TPS51120 32-pin QFN package is specified
from –40
°C to 85°C ambient temperature.
Notebook Computers System Bus and I/O
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.
D-CAP is a registered trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2005–2007, 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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相關代理商/技術(shù)參數(shù)
參數(shù)描述
TPS51120RHBRG4 功能描述:電流型 PWM 控制器 Dual Current Mode Sync Step-Down RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
TPS51120RHBT 功能描述:電流型 PWM 控制器 Dual Current Mode Sync Step-Down RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
TPS51120RHBTG4 功能描述:電流型 PWM 控制器 Dual Current Mode Sync Step-Down RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
TPS51123 制造商:TI 制造商全稱:Texas Instruments 功能描述:Dual-Synchronous, Step-Down Controller with Out-of-Audio? Operation and 100-mA LDOs for Notebook System Power
TPS51123A 制造商:TI 制造商全稱:Texas Instruments 功能描述:Dual-Synchronous, Step-Down Controller with Out-of-Audioa?￠ Operation and 100-mA LDOs for Notebook System Power
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