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參數資料
| 型號： | TPS62677YFDT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, PBGA6 |
| 封裝： | 0.40 MM HEIGHT, DSBGA-6 |
| 文件頁數： | 1/28頁 |
| 文件大小： | 750K |
| 代理商： | TPS62677YFDT |
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CSP-6
VIN
SW
FB
MODE
EN
GND
VOUT
1.8 V @ 500mA
C
2.2 F
I
m
TPS62671
L
0.47 H
m
C
4.7 F
O
m
VBAT
2.3 V .. 4.8 V
0.1
1
10
100
1000
I -LoadCurrent-mA
O
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
0
20
40
60
80
100
120
140
160
180
200
PowerLoss-mW
V =3.6V,
V
=1.8V
I
O
www.ti.com
SLVS952 – APRIL 2010
500-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER
IN LOW PROFILE CHIP SCALE PACKAGING (HEIGHT < 0.4mm)
Check for Samples: TPS6267x
1
FEATURES
APPLICATIONS
23
92% Efficiency at 6MHz Operation
Cell Phones, Smart-Phones
17mA Quiescent Current
Camera Module Embedded Power
Wide VIN Range From 2.3V to 4.8V
Digital TV, WLAN, GPS and Bluetooth
6MHz Regulated Frequency Operation
Applications
Spread Spectrum, PWM Frequency Dithering
DC/DC Micro Modules
Best in Class Load and Line Transient
DESCRIPTION
±2% Total DC Voltage Accuracy
The
TPS6267x
device
is
a
high-frequency
Low Ripple Light-Load PFM Mode
synchronous step-down dc-dc converter optimized for
>50dB VIN PSRR (1kHz to 10kHz)
battery-powered portable applications. Intended for
Simple Logic Enable Inputs
low-power applications, the TPS6267x supports up to
Supports External Clock Presence Detect
500-mA load current, and allows the use of low cost
chip inductor and capacitors.
Enable Input
Three Surface-Mount External Components
With a wide input voltage range of 2.3V to 4.8V, the
Required (One 0603 MLCC Inductor, Two 0402
device supports applications powered by Li-Ion
batteries with extended voltage range. Different fixed
Ceramic Capacitors)
voltage output versions are available from 1.0V to
Complete Sub 0.33-mm Component Profile
2.3V.
Solution
The TPS6267x operates at a regulated 6-MHz
Total Solution Size <10 mm2
switching frequency and enters the power-save mode
Available in a 6-Pin NanoFree (CSP)
operation at light load currents to maintain high
Ultra-Thin Packaging, 0,4mm Max. Height
efficiency over the entire load current range.
The PFM mode extends the battery life by reducing
the quiescent current to 17mA (typ) during light load
operation. For noise-sensitive applications, the device
has PWM spread spectrum capability providing a
lower noise regulated output, as well as low noise at
the input. These features, 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.
3
Bluetooth is a trademark of Bluetooth SIG, Inc.
UNLESS
OTHERWISE
NOTED
this
document
contains
Copyright 2010, Texas Instruments Incorporated
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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