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TPS62102D Datasheet

  • TPS62102D

  • MULTIMODE LOW POWER BUCK CONVERTER

  • 359.38KB

  • 23頁

  • TI

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TPS62100, TPS62101, TPS62102, TPS62103
MULTIMODE LOW POWER BUCK CONVERTER
SLUS446B 鈥?MAY 2000 鈥?REVISED DECEMBER 2000
applications
X
D
2.5-V to 9-V Input Range
D
0.8-V to 8-V Output Range
D
Dual-Auto-Mode for High-Efficiency
D
D
D
D
D
at Light Loads
Externally Synchronizable
0% to 100% Duty Cycle
Low-Quiescient, Standby,
and Shutdown Currents
8-Pin SOIC Package
Four PWM Frequency
Versions (Maximum 2 MHz)
D
D
D
D
D
Cellular Telephones
Satellite Telephones
GPS Devices
Digital Still Cameras
PDAs and Handheld Cameras
D PACKAGE
(TOP VIEW)
VIN
SD/SYNC
MODE
AGND
1
2
3
4
8
7
6
5
SW
PGND
FB
COMP
description
The TPS6210x family of low-power high-efficiency buck converters is designed to operate from 1 or 2 li-ion
cell battery packs. This part, with its wide input range of 2.5 V to 9 V, has an adjustable output from 0.8 V to
8 V and is capable of 500-mA output current. The TPS6210x family of synchronizable dc-to-dc converters is
available in four different operating frequencies: 300 kHz, 600 kHz, 1 MHz, and 2 MHz. The circuit can be
allowed to run at a fixed frequency, or sychronized, using the dual function SD/SYNC input pin.
The TPS6210x family is highly efficient at both low and high output currents. The tri-function MODE input pin
is used to select constant-frequency, auto-mode, or light-load modes of operation. The multimode operation
allows the IC to select the most efficient operating mode, or if desirable, the user can determine which of three
modes to operate in. In the auto-mode, the output load detector circuitry determines if the converter should be
running in the constant-frequency, heavy-load mode, or pulsed-variable frequency, light-load mode.
The TPS6210x family also has a shutdown mode for optimum battery shelf life. The IC utilizes three methods
of overload protection, including thermal shutdown and two levels of overcurrent protection. The TPS6210x is
available in the small outline 8-pin SOIC package.
typical application (automatic mode switcher)
L1
15
碌
H
TPS62102
1
C1
1.0
碌
F
LI鈥揑ON
2
SD/SYNC
PGND
7
R2
113 k
鈩?/div>
LI鈥揑ON
3
MODE
FB
6
C3
100 pF
VIN
SW
8
D1
10BQ040
C4
10
碌
F
MLC
OUT 3.3 V
0 mA TO 500 mA
R1
1 k
鈩?/div>
+
+
R4
30 k
鈩?/div>
C2
1nF
R3
36 k
鈩?/div>
4
AGND
COMP
5
UDG鈥?0059
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
漏
2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

TPS62102D 產(chǎn)品屬性

  • 75

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器

  • -

  • 降壓（降壓）

  • 可調(diào)式

  • 1

  • 0.8 V ~ 8 V

  • 2.5 V ~ 9 V

  • -

  • 1MHz

  • 500mA

  • 是

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 管件

  • 8-SOIC

  • 296-13589-ND - EVAL MOD FOR TPS62102

  • 296-10978-5

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