TPS60500, TPS60501
TPS60502, TPS60503
SLVS391B – OCTOBER 2001 – REVISED FEBRUARY 2002
HIGH EFFICIENCY, 250-mA
STEP-DOWN CHARGE PUMP
D
D
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DSP Core Supply
FEATURES
Cellular Phones
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Regulated 3.3-V, 1.8-V, 1.5-V, or Adjustable
Output Voltage
Portable Instruments
Internet Audio Player
PC Peripherals
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Up to 250-mA Output Current
1.8-V to 6.5-V Input Voltage
Up to 90% Efficiency
USB Powered Applications
Output Voltage Tolerance 3% Over Line, Load,
and Temperature Variation
DESCRIPTION
The TPS6050x devices are a family of step-down
charge pumps that generate a regulated, fixed 3.3-V,
1.8-V, 1.5-V, or adjustable output voltage. Only four
small ceramic capacitors are required to build a
complete high efficiency dc/dc charge pump converter.
To achieve the high efficiency over a wide input voltage
range, the charge pump automatically selects between
three different conversion modes. The output can
deliver a maximum of 250-mA output current. The
power good function supervises the output voltage and
goes high when the output voltage rises to 97% of its
nominal value.
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Device Quiescent Current Less Than 40 µA
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Output Voltage Supervisor Included
(Power Good)
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Internal Soft Start
Load Isolated From Battery During Shutdown
Overtemperature and Overcurrent Protected
Micro-Small 10-Pin MSOP Package
EVM Available, TPS60500EVM-193
APPLICATIONS
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Personal Digital Assistants
Typical Application Circuit
TPS60503
C1F
1 µF
C2F
1 µF
EFFICIENCY
vs
INPUT VOLTAGE
100
100 mA
50 mA
8
6
3
4
90
C1F– C1F+ C2F– C2F+
1.8 V
150 mA
80
70
7
INPUT
OUT
60
+
Li-ion cell
5
1
C
150 mA
o
VIN
50
10 µF
LDO
C
i
40
30
20
10
0
TPS60502
FB
2.2 µF
10
R
EN
OFF/ON
2
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
PG
GND
V – Input Voltage – V
I
9
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.
Copyright 2002, Texas Instruments Incorporated
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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