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参数资料
| 型号： | TPS62621YFFR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.2 A SWITCHING REGULATOR, 6600 kHz SWITCHING FREQ-MAX, BGA6 |
| 封装： | GREEN, DSBGA-6 |
| 文件页数： | 1/30页 |
| 文件大小： | 968K |
| 代理商： | TPS62621YFFR |
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CSP-6
0
10
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0.1
1
10
100
1000
I -LoadCurrent-mA
O
0
20
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200
Efficiency-%
PowerLoss-mW
V =3.6V,
V =1.8V
I
O
Efficiency
PFM/PWMOperation
PowerLoss
PFM/PWMOperation
VIN
SW
FB
MODE
EN
GND
VOUT
1.8V@600mA
C
2.2 F
I
m
TPS6262x
L
0.47 H
m
C
4.7 F
O
m
VBAT
2.3V..5.5V
www.ti.com
SLVS848B – JULY 2009 – REVISED DECEMBER 2009
600-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER
IN CHIP SCALE PACKAGING
1
FEATURES
23
90% Efficiency at 6MHz Operation
DESCRIPTION
31
μA Quiescent Current
The
TPS6262x
device
is
a
high-frequency
Wide VIN Range From 2.3V to 5.5V
synchronous step-down dc-dc converter optimized for
6MHz Regulated Frequency Operation
battery-powered portable applications. Intended for
low-power applications, the TPS6262x supports up to
Best in Class Load and Line Transient
600mA load current, and allows the use of low cost
±2% Total DC Voltage Accuracy
chip inductor and capacitors.
Automatic PFM/PWM Mode Switching
With a wide input voltage range of 2.3V to 5.5V, the
Low Ripple Light-Load PFM Mode
device supports applications powered by Li-Ion
Internal Soft Start, 120-
μs Start-Up Time
batteries with extended voltage range. Different fixed
voltage output versions are available from 1.2V to
Integrated Active Power-Down Sequencing
2.3V.
(Optional)
Current Overload and Thermal Shutdown
The TPS6262x operates at a regulated 6-MHz
switching frequency and enters the power-save mode
Protection
operation at light load currents to maintain high
Three Surface-Mount External Components
efficiency over the entire load current range.
Required (One MLCC Inductor, Two Ceramic
Capacitors)
The PFM mode extends the battery life by reducing
the quiescent current to 31
μA (typ) during light load
Complete Sub 1-mm Component Profile
and
standby
operation.
For
noise-sensitive
Solution
applications, the device can be forced into fixed
Total Solution Size <12 mm2
frequency PWM mode by pulling the MODE pin high.
Available in a 6-Pin NanoFree (CSP)
The TPS6262x is available in an 6-pin chip-scale
Regular and Ultra-Thin Packaging
package (CSP).
APPLICATIONS
Cell Phones, Smart-Phones
WLAN, GPS and Bluetooth Applications
DTV Tuner Applications
DC/DC Micro Modules
Figure 2. Efficiency vs. Load Current
Figure 1. Smallest Solution Size Application
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.
PRODUCTION DATA information is current as of publication date.
Copyright 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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| TPS62622YFFT | 功能描述:直流/直流开关调节器 600mA,90% Eff Step- Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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