參數(shù)資料
型號： TPS62690YFFR
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 0.5 A SWITCHING REGULATOR, 4400 kHz SWITCHING FREQ-MAX, BGA6
封裝： GREEN, DSBGA-6
文件頁數(shù)： 1/27頁
文件大小： 870K
代理商： TPS62690YFFR
CSP-6
VIN
SW
FB
MODE
EN
GND
VOUT
2.85 V @ 500mA
C
4.7 F
I
m
TPS62690
L
1.0 H
m
C
4.7 F
O
m
VIN
3.15 V .. 4.8 V
50
55
60
65
70
75
80
85
90
95
100
0.1
1
10
100
1000
0
15
30
45
60
75
90
105
120
135
150
I
- Load Current - mA
O
Efficiency
-
%
Power
Loss
-
mW
V = 3.6 V,
V
= 2.85 V
I
O
Efficiency
PFM/PWM Operation
Power Loss
PFM/PWM Operation
SLVS965
– MARCH 2011
500-mA / 600-mA, 4-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER
IN CHIP SCALE PACKAGING
Check for Samples: TPS62690, TPS62691
1
FEATURES
APPLICATIONS
2
95% Efficiency at 4MHz Operation
LDO Replacement
19
μA Quiescent Current
Cell Phones, Smart-Phones
4MHz Regulated Frequency Operation
Portable Audio, Portable Media
High Duty-Cycle Operation
DC/DC Micro Modules
±2% Total DC Voltage Accuracy
Best in Class Load and Line Transient
DESCRIPTION
Excellent AC Load Regulation
The
TPS6269x
device
is
a
high-frequency
synchronous step-down dc-dc converter optimized for
Low Ripple Light-Load PFM Mode
battery-powered portable applications. Intended for
≥40dB VIN PSRR (1kHz to 10kHz)
low-power applications, the TPS6269x supports up to
Internal Soft Start, 250-
μs Start-Up Time
600-mA load current, and allows the use of low cost
Integrated Active Power-Down Sequencing
chip inductor and capacitors.
(Optional)
The device is ideal for mobile phones and similar
Current Overload and Thermal Shutdown
portable applications powered by a single-cell Li-Ion
Protection
battery. Different fixed voltage output versions are
available from 2.2V to 2.9V.
Three Surface-Mount External Components
Required (One 2012 MLCC Inductor, Two 0402
The TPS6269x operates at a regulated 4-MHz
Ceramic Capacitors)
switching frequency and enters the power-save mode
operation at light load currents to maintain high
Complete Sub 1-mm Component Profile
efficiency over the entire load current range.
Solution
The PFM mode extends the battery life by reducing
Total Solution Size
<12 mm2
the quiescent current to 19
μA (typ) during light load
Available in a 6-Pin NanoFree
(CSP)
operation. For noise-sensitive applications, the device
can be forced into fixed frequency PWM mode by
pulling the MODE pin high. This feature, combined
with high PSRR and AC load regulation performance,
make this device suitable to replace a linear regulator
to obtain better power conversion efficiency.
Figure 2. Smallest Solution Size Application
Figure 1. Efficiency vs. Load Current
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
NanoFree is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS62690YFFT 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 500mA,4MHz,2.85Vout Hi-Eff St-Dwn Cnvrtr RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
TPS62691EVM-076 功能描述:電源管理IC開發(fā)工具 TPS62691 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS62692EVM-076 制造商:Texas Instruments 功能描述:TPS62692EVM-076 EVALUATION MODULE
TPS62692YFDR 制造商:Texas Instruments 功能描述:
TPS62693YFDR 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 800-mA 3-MHz Hi-Eff SD Cnvtr RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
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