TEXAS INSTRUMENTS TPS60300, TPS60301, TPS60302, TPS60303 Technical data

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TPS60300, TPS60301, TPS60302, TPS60303
SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT,
HIGH-EFFICIENCY CHARGE PUMP
SLVS302A – DECEMBER 2000 – REVISED MARCH 2001
features
D Regulated 3-V or 3.3-V Output Voltage With
1.8-V Input Voltage Range
D High Power Conversion Efficiency (up to
90%) Over a Wide Output Current Range, Optimized for 1.2-V Battery Voltage
D Additional Output With 2 Times V
(OUT1)
IN
D Device Quiescent Current Less Than 35 µA D Supervisor Included; Open Drain or
Push-Pull Power Good Output
D No Inductors Required/Low EMI D Only Five Small, 1-µF Ceramic Capacitors
Required
D Load Isolated From Battery During
Shutdown
D Microsmall 10-Pin MSOP Package
description
The TPS6030x step-up, regulated charge pumps generate a 3-V ±4% or 3.3-V ±4% output voltage from a 0.9-V to 1.8-V input voltage (one alkaline, NiCd, or NiMH battery).
applications
D Pagers D Battery-Powered T oys D Portable Measurement Instruments D Home Automation Products D Medical Instruments (Like Hearing
Instruments)
D Metering Applications Using MSP430
Microcontroller
D Portable Smart Card Readers
DGS PACKAGES
(TOP VIEW)
EN
C1–
V
IN
C1+
OUT1
1 2 3 4 5
ACTUAL SIZE
3,05 mm x 4,98 mm
10
9 8 7 6
PG GND C2– C2+ OUT2
Only five small 1-µF ceramic capacitors are required to build a complete high efficiency dc/dc charge pump converter. T o achieve the high ef ficiency over a wide input voltage range, the charge pump automatically selects between a 3x or 4x conversion mode.
typical application circuit
ALKALINE BATTERY OPERATING TIME
1.6
1.5
1.4
1.3
1.2
1.1 1
Battery Voltage – V
0.9
0.8
0.7
0.6 02468
Operating time (hours) with an alkaline battery
(2000 mAh) until power good goes low @ lL = 20 mA
Efficiency
V Battery
10 12 14 16 18 20 22 24 26 28 30 32 34
Operating Time
INPUT
0.9 V to 1.8 V
C
1 µF
OFF/ON
C1F 1 µF
2487
C1– C1+ C2– C2+
3
V
IN
+
IN
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.
TPS60300
EN
GND
9
C2F 1 µF
OUT1
OUT2
PG
(OUT1)
+
C 1 µF
2× IN Max 40 mA
3.3 V ±4% Max 20 mA
(OUT2)
5
+
C 1 µF
6
R
10
100 90 80 70 60 50 40 30 20 10 0
Efficiency – %
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2001, Texas Instruments Incorporated
1
TPS60300, TPS60301, TPS60302, TPS60303 SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT, HIGH-EFFICIENCY CHARGE PUMP
SLVS302A – DECEMBER 2000 – REVISED MARCH 2001
description (continued)
Output 1 (OUT1) can deliver a maximum of 40 mA, from a 1-V input, with output 2 (OUT2) not loaded. OUT2 can deliver a maximum of 20 mA, from a 1-V input, with OUT1 not loaded. Both outputs can be loaded in the same time, but the total output current of the first voltage doubler must not exceed 40 mA. For example, the load at OUT1 is 20 mA and the load at output 2 is 10 mA.
The devices operate in the newly developed LinSkip mode. In this operating mode, the device switches seamlessly from the power saving, pulse-skip mode at light loads, to the low-noise, constant-frequency linear-regulation mode, once the output current exceeds the device-specific output current threshold.
A power-good function supervises the output voltage of OUT2 and can be used for power up and power down sequencing. Power good (PG) is offered as either open-drain or push-pull output.
AVAILABLE OPTIONS
OUTPUT
CURRENT 1
[mA]
MARKING DGS
PACKAGE
PART
NUMBER
TPS60300DGS ALF 40 20 2 x V TPS60301DGS ALG 40 20 2 x V TPS60302DGS ALI 40 20 2 x V TPS60303DGS ALK 40 20 2 x V
The DGS package is available taped and reeled. Add R suffix to device type (e.g. TPS60300DGSR) to order quantities of 2500 devices per reel.
If OUT2 is not loaded
§
If OUT1 is not loaded
OUTPUT
CURRENT 2
§
[mA]
OUTPUT
VOLTAGE 1
[V]
IN IN IN IN
OUTPUT
VOLTAGE 2
[V]
3.3 Open-drain power-good output
3.0 Open-drain power-good output
3.3 Push-pull power-good output
3.0 Push-pull power-good output
FEATURE
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT,
TPS60300 and TPS60301 functional block diagram
C1F
C1+C1–
TPS60300, TPS60301, TPS60302, TPS60303
HIGH-EFFICIENCY CHARGE PUMP
SLVS302A – DECEMBER 2000 – REVISED MARCH 2001
CP1
Control
2x (Doubler)
Charge Pump
Oscillator
Reg
CP2
1.5x/2x
Charge Pump
C2F
_ +
_ +
+
V
ref
_
C2+C2–
V
IN
EN
GND
OUT1
PG (Push-Pull Output for TPS60302 and TPS60303)
OUT2
Terminal Functions
TERMINAL
NAME NO.
C1+ 4 Positive terminal of the flying capacitor C1F C1– 2 Negative terminal of the flying capacitor C1F C2+ 7 Positive terminal of the flying capacitor C2F C2– 8 Negative terminal of the flying capacitor C2F EN 1 I Device-enable input
GND 9 GROUND OUT1 5 O 2 × VIN power output. Bypass OUT1 to GND with the output filter capacitor C OUT2 6 O Regulated
PG 10 O Power good detector output. As soon as the voltage on OUT2 reaches about 98% of its nominal value this pin goes high.
V
IN
I/O
EN = Low disables the device. Output and input are isolated in shutdown mode. EN = High enables the device.
3.3-V power output (TPS60300, TPS60302) or 3-V power output (TPS60301, TPS60303), respectively Bypass OUT2 to GND with the output filter capacitor C
Open drain output on TPS60300 and TPS60301. A pullup resistor should be connected between PG and OUT1 or OUT2.
Push-pull output stage on TPS60302 and TPS60303
3 I Supply input. Bypass VIN to GND with a ≥1-µF capacitor.
DESCRIPTION
.
(OUT2)
(OUT1)
.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3
TPS60300, TPS60301, TPS60302, TPS60303 SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT, HIGH-EFFICIENCY CHARGE PUMP
SLVS302A – DECEMBER 2000 – REVISED MARCH 2001
detailed description
operating principle
The TPS6030x charge pumps are voltage quadruplers that provide a regulated 3.3-V or 3.0-V output from a
0.9-V to 1.8-V input. They deliver a maximum load current of 20 mA. Designed specifically for space critical battery powered applications, the complete converter requires only five external capacitors and enables the design to use low-cost, small-sized, 1-µF ceramic capacitors. The TPS6030x circuits consist of an oscillator, a voltage reference, an internal resistive feedback circuit, an error amplifier, two charge pump stages with MOSFET switches, a shutdown/start-up circuit, and a control circuit.
shutdown
Driving EN low disables the converter. This disables all internal circuits, reducing input current to only 0.05 µA. Leakage current drawn from the output pins OUT1 and OUT2 is a maximum of 1 µA. The device exits shutdown once EN is set high (see start-up procedure described below). The typical no-load, start-up time is 400 µs. When the device is disabled, the load is isolated from the input. This is an important feature in battery operated products because it extends the battery shelf life.
start-up procedure
The device is enabled when EN is set from logic low to logic high. CP1 will first enter a dc start-up mode during which the capacitor on OUT1 is charged up to about V up to about two times V
. CP2 will then follow and charge up the capacitor on OUT2 to about the voltage on
IN
OUT1, after that, it will also start switching and boost up the voltage to its nominal value. EN must not exceed the highest voltage applied to the device.
. After that, it starts switching to boost the voltage further
IN
NOTE:
During start-up with V
= 0 V, the highest voltage is the input voltage.
OUT
power-good detector
The power-good output is an open-drain output on the TPS60300 and TPS60301 or a push-pull output on the TPS60302 and TPS60303. The PG-output pulls low when the output of OUT2 is out of regulation. When the output rises to within 98% of regulation, the power-good output goes active high. In shutdown, power-good is pulled low. In normal operation, an external pullup resistor with the TPS60300 and TPS60301 is typically used to connect the PG pin to VOUT . The resistor should be in the 100-k to 1-M range. If the PG output is not used, it should remain unconnected. Output current at PG (TPS60302, TPS60303) will reduce maximum output current at OUT2.
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TPS60300, TPS60301, TPS60302, TPS60303
SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT,
HIGH-EFFICIENCY CHARGE PUMP
SLVS302A – DECEMBER 2000 – REVISED MARCH 2001
O(OUT1)
IN
O(OUT2)
+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Input voltage, V Output voltage, V Voltage, (C1+ to GND) –0.3 V to V Voltage, (C1– to GND, C2– to GND) –0.3 V to V Voltage, (C2+ to GND) –0.3 V to V
(IN to GND) (see Note 1) –0.3 V to 2 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
(OUT1,OUT2, EN, PG to GND) (see Note 1) –0.3 V to 3.6 V. . . . . . . . . . . . . . . . . . . . . . . .
O
Continuous power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current, I Output current, I Storage temperature range, T Maximum junction temperature, T
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The voltage at EN and PG can exceed IN up to the maximum rated voltage without increasing the leakage current drawn by these pins.
PACKAGE
DGS 424 mW 3.4 mW/°C 271 mW 220 mW
NOTE: The thermal resistance junction to ambient of the DGS package is R
(OUT1) 80 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
(OUT2) 40 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
stg
–55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J
DISSIPATION RATING TABLE
TA <25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
= 294°C/W.
TH–JA
TA = 85°C
POWER RATING
150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
MIN NOM MAX UNIT
Input voltage, V Output current (OUT2), I Output current (OUT1), I Input capacitor, C Flying capacitors, C1F, C2F 1 µF Output capacitors, C Operating junction temperature, T
I
O(OUT2) O(OUT1)
I
, C
O(1)
O(2)
J
0.9 1.8 V 20 mA 40 mA
1 µF
1 µF
–40 125 °C
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
5
TPS60300, TPS60301, TPS60302, TPS60303
Maximum out ut current for TPS60300
V
O(OUT2)
Out ut voltage for TPS60300, TPS60302
V
V
O(OUT2)
Out ut voltage for TPS60301, TPS60303
V
SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT, HIGH-EFFICIENCY CHARGE PUMP
SLVS302A – DECEMBER 2000 – REVISED MARCH 2001
electrical characteristics at CIN = C1F = C2F = C
= VIN (unless otherwise noted)
V
(EN)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
I
O(OUT1)
I
O(OUT2)
I
O(OUT1)
I
O(OUT2)
V
V
V
P–P
I
Q
I
(SD)
f
OSC
V
IL(EN)
V
IH(EN)
I
lkg
NOTE 2: OUT1 not loaded. If OUT1 is connected to GND via a resistor, leakage current will be increased.
Supply voltage range 0.9 1.8 V
Maximum output current for TPS60300, TPS60302
Maximum output current for TPS60301, TPS60303
Output voltage for TPS60300, TPS60302
Output voltage for TPS60301, TPS60303
Output voltage ripple Quiescent current (no-load input current) I
Shutdown supply current
Internal switching frequency 470 700 900 kHz EN input low voltage VIN = 0.9 V to 1.8 V 0.3 × V EN input high voltage VIN = 0.9 V to 1.8 V 0.7 × V
EN input leakage current
LinSkip switching threshold VIN = 1.25 V 7.5 mA
Short circuit current VIN = 1.8 V
Output leakage current OUT2
,
OUT2 I OUT1
(OUT1)
VIN 1.1 V, I I
= 0 mA
(PG,1)
VIN = 0.9 V, I I
= 0 mA
(PG,1)
VIN 1.1 V, I I
= 0 mA
(PG,1)
VIN = 0.9 V, I I
= 0 mA
(PG,1)
VIN 1.1 V, I I
= 0 mA
(PG,1)
VIN = 0.9 V, I I
= 0 mA
(PG,1)
VIN 1.0 V, I I
= 0 mA
(PG,1)
VIN = 0.9 V, I I
= 0 mA
(PG,1)
1.1 V < VIN < 1.8 V, I
O(OUT1)
0 < I
O(OUT2)
0.9 V < VIN < 1.1 V, I
O(OUT1)
1.0 V < VIN < 1.8 V, I
O(OUT1)
0 < I
O(OUT2)
VIN > 1.65 V, I 25 µA < I
O(OUT2)
I
O(OUT1) O(OUT)
VIN = 1.8 V, V See Note 2
VIN = 1.8 V, V TC = 25°C, See Note 2
V
= 0 V or VIN or V
(EN)
V
O(OUT1)
V
O(OUT1)
V
O(OUT2)
= C
(OUT2)
O(OUT2)
O(OUT2)
O(OUT1)
O(OUT1)
O(OUT2)
O(OUT2)
O(OUT1)
O(OUT1)
= 0 mA
< 20 mA
= 0 mA, I
= 0 mA,
O(OUT2)
= 20 mA, I = 40 mA, I
= 0 mA, VIN = 1.8 V 35 70 µA
= 3 V, = nominal, EN = 0 V
O(OUT2)
< 20 mA
O(OUT1)
< 20 mA
O(OUT1) O(OUT2)
V V
= 1 µF, TC = –40°C to 85°C, VIN = 1.0 V,
= 0 mA,
= 0 mA,
= 0 mA,
= 0 mA,
= 0 mA,
= 0 mA,
= 0 mA,
= 0 mA,
< 10 mA
= 0 mA,
= 0 mA 20 = 0 mA 40
= 0 V,
(EN)
= 0 V,
(EN)
O(OUT2)
O(OUT2) O(OUT1)
or
= 0 V 5 20 50 = 0 V 2 80 150
40
20
20
10
40
20
20
12
3.17 3.30 3.43
3.17 3.30 3.43
2.88 3 3.12
2.88 3 3.15
0.05 2.5
0.5
IN
0.01 0.1 µA
mA
mA
mV
µA
IN
mA
1 µA
V
V
P–P
V V
6
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TPS60300, TPS60301, TPS60302, TPS60303
)
Out ut resistance at ower good
SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT,
HIGH-EFFICIENCY CHARGE PUMP
SLVS302A – DECEMBER 2000 – REVISED MARCH 2001
electrical characteristics at CIN = C1F = C2F = C
= VIN (unless otherwise noted) (continued)
V
(EN)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Output load regulation
Output line regulation No-load start-up time 400 µs
Impedance of first charge pump stage 4
Start-up performance at OUT2 (minimum
-
p
start-up load resistance
Start-up performance at OUT1 (minimum start-up load resistance)
VIN = 1.25 V, TC = 25°C 2 mA < I
1.0 V < VIN < 1.65 V; TC = 25°C, I
O(OUT)
VIN 1.1 V 165 VIN 1.0 V 330 VIN = 0.9 V 1000
VIN = 1.0 V 500
(OUT1)
O(OUT2)
= 10 mA
= C
(OUT2)
< 20 mA
= 1 µF, TC = –40°C to 85°C, VIN = 1.0 V,
0.1 %/mA
0.75 %/V
electrical characteristics for power good comparator of devices TPS6030x at TC = –40°C to 85°C,
= 1.0 V and V
V
IN
V
(PG)
V
hys
V
OL
I
lkg
V
OH
I
O(PG,1)
I
O(PG,0)
R
(PG,1)
R
(PG,0)
Power good trip voltage VO ramping positive VO – 2% V Power good trip voltage hysteresis VO ramping negative 10%
Power good output voltage low
Power good leakage current
Power good output voltage high
Output current at power good (source) Output current at power good (sink) All devices V
Output resistance at power good
= VIN (unless otherwise noted)
(EN)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
O
TPS60300
TPS60301 TPS60302
TPS60303 TPS60302,
TPS60303
TPS60302, TPS60303
All devices V
VO = 0 V, I
= 1.6 mA
(PG)
VO = 3.3 V, V
= 3.3 V
(PG)
VO = 3.0 V, V
= 3.0 V
(PG)
I
= –5 mA
(PG)
= 0 V 1.6 mA
(PG)
V
= V
(PG) (PG)
O(OUT2)
= 0 V 100
3
2.7 –5 mA
0.01 0.1
0.01 0.1
0.3 V
15
V
µA
V
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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