參數(shù)資料
型號(hào)： TPS60101PWPRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 0.1 A SWITCHED CAPACITOR REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO20
封裝： GREEN, PLASTIC, HTSSOP-20
文件頁(yè)數(shù)： 1/26頁(yè)
文件大?。?/td> 840K
代理商： TPS60101PWPRG4
TPS60101
REGULATED 3.3V 100mA LOW NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS214A JUNE 1999 REVISED SEPTEMBER 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
D Up to 100-mA Output Current
D Less Than 5-mVpp Output Voltage Ripple
D No Inductors Required/Low EMI
D Regulated 3.3-V ±4% Output
D Only Four External Components Required
D Up to 90% Efficiency
D 1.8-V to 3.6-V Input Voltage Range
D 50-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
(TPS60100EVM131)
applications
Replaces DC/DC Converters With Inductors in
Battery-Powered Applications
Two Battery Cells to 3.3-V Conversion
Portable Instruments
Battery-Powered Microprocessor and
DSP Systems
Miniature Equipment
Backup-Battery Boost Converters
PDAs
Laptops
Handheld Instrumentation
Medical Instruments
Cordless Phones
description
The TPS60101 step-up, regulated charge pump
generates a 3.3-V
±4% output voltage from a
1.8-V to 3.6-V input voltage (two alkaline, NiCd, or
NiMH batteries). Output current is 100 mA from a
2-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 2-V input, the
TPS60101 can start into full load with loads as low
as 33
.
The TPS60101 features either constant frequen-
cy mode to minimize noise and output voltage
ripple or the power-saving pulse-skip mode to
extend battery life at light loads. The TPS60101
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 current 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
1999, 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 Incorporated.
output voltage ripple
typical operating circuit
Figure 1
3.45
10
3.25
3.3
3.35
3.4
3.05
3.1
3.15
3.2
5
01
23
4
6
7
8
9
t Time
s
Output
V
o
ltage
V
O
SKIP =COM = 3V8 = 0 V
VIN = 2.4 V
VO = 3.3 V
IO = 100 mA
CO = 22 F
X5R Ceramic
IN
C1+
C1
ENABLE
OUT
FB
C2+
C2
SYNC
SKIP COM 3V8
PGND GND
INPUT
1.8 V to
3.6 V
CIN
4.7
F
OUTPUT
3.3 V
100 mA
CO
10
F
C2F
1
F
C1F
1
F
+
OFF/ON
TPS60101
+
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