參數(shù)資料
型號: TPS60110PWP
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 0.3 A SWITCHED CAPACITOR REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO20
封裝: GREEN, PLASTIC, HTSSOP-20
文件頁數(shù): 1/25頁
文件大?。?/td> 678K
代理商: TPS60110PWP
TPS60110
REGULATED 5V 300mA LOW NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS215C JUNE 1999 REVISED AUGUST 2008
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
D Up to 300-mA Output Current
D Less Than 10-mVpp Output Voltage Ripple
D No Inductors Required/Low EMI
D Regulated 5-V ±4% Output
D Only Four External Components Required
D Up to 90% Efficiency
D 2.7-V to 5.4-V Input Voltage Range
D 60-A Quiescent Supply Current
D 0.05-A Shutdown Current
D Load Isolated in Shutdown
D Space-Saving Thermally-Enhanced TSSOP
PowerPAD
Package
D Evaluation Module Available
(TPS60110EVM132)
applications
D Replaces DC/DC Converters With Inductors
in
Battery-Powered Applications
Li-Ion Battery to 5-V Conversion
Portable Instruments
Battery-Powered Microprocessor
Systems
Miniature Equipment
Backup-Battery Boost Converters
PDAs
Laptops
Handheld Instrumentation
Medical Instruments
description
The TPS60110 step-up, regulated charge pump
generates a 5-V
±4% output voltage from a 2.7-V
to 5.4-V input voltage (three alkaline, NiCd, or
NiMH batteries; or, one lithium or lithium ion
battery). Output current is 300 mA from a 3-V
input. Only four external capacitors are needed to
build a complete low-noise dc/dc converter. The
push-pull operating mode of two single-ended
charge pumps assures the low output voltage
ripple as current is continuously transferred to the
output. From a 3-V input, the TPS60110 can start
into full load with loads as low as 16
.
The TPS60110 features either constant frequency
mode to minimize noise and output voltage ripple
or the power-saving pulse-skip mode to extend
battery life at light loads. The TPS60110 switching
frequency is 300 kHz. The logic shutdown function
reduces the supply current to 1-
A (max) and
disconnects the load from the input. Special
current-control circuitry prevents excessive cur-
rent from being drawn from the battery during
start-up. This dc/dc converter requires no
inductors and has low EMI. It is available in the
small 20-pin TSSOP PowerPAD
package
(PWP).
Copyright
19992003 Texas Instruments Incorporated
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.
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.
PowerPAD is a trademark of Texas Instruments.
output voltage ripple
typical operating circuit
SKIP =COM = CLK = 0 V
VIN = 3.6 V
IO = 300 mA
CO = 22 F + 10 F
X5R Ceramic
5.2
5
5.05
5.1
5.15
4.8
4.85
4.9
4.95
Output
V
o
ltage
V
O
5
2.5
0
0.5
1
1.5
2
3
3.5
4
4.5
t Time
s
IN
C1+
C1
ENABLE
OUT
FB
C2+
C2
SYNC
SKIP COM CLK
PGND GND
INPUT
2.7 V to
5.4 V
CIN
15
F
OUTPUT
5 V
300 mA
CO
33
F
C2F
2.2
F
C1F
2.2
F
+
OFF/ON
TPS60110
+
Figure 1
相關(guān)PDF資料
PDF描述
TPS60111PWPR 0.15 A SWITCHED CAPACITOR REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO20
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TPS60121PWPRG4 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
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