90%) Over a Wide Output Current Range,
Optimized for 1.2-V Battery Voltage
DAdditional Output With 2 Times V
(OUT1)
IN
DDevice Quiescent Current Less Than 35 µA
DSupervisor Included; Open Drain or
Push-Pull Power Good Output
DNo Inductors Required/Low EMI
DOnly Five Small, 1-µF Ceramic Capacitors
Required
DLoad Isolated From Battery During
Shutdown
DMicrosmall 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).
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.
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
TPS60300DGSALF40202 x V
TPS60301DGSALG40202 x V
TPS60302DGSALI40202 x V
TPS60303DGSALK40202 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]
3.3Open-drain power-good output
3.0Open-drain power-good output
3.3Push-pull power-good output
3.0Push-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
NAMENO.
C1+4Positive terminal of the flying capacitor C1F
C1–2Negative terminal of the flying capacitor C1F
C2+7Positive terminal of the flying capacitor C2F
C2–8Negative terminal of the flying capacitor C2F
EN1IDevice-enable input
GND9GROUND
OUT15O2 × VIN power output. Bypass OUT1 to GND with the output filter capacitor C
OUT26ORegulated
PG10OPower 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
3ISupply input. Bypass VIN to GND with a ≥1-µF capacitor.
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-kΩ to 1-MΩ 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.
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
DGS424 mW3.4 mW/°C271 mW220 mW
NOTE: The thermal resistance junction to ambient of the DGS package is R
Input voltage, V
Output current (OUT2), I
Output current (OUT1), I
Input capacitor, C
Flying capacitors, C1F, C2F1µF
Output capacitors, C
Operating junction temperature, T
I
O(OUT2)
O(OUT1)
I
, C
O(1)
O(2)
J
0.91.8V
20mA
40mA
1µF
1µF
–40125°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)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
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 range0.91.8V
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 frequency470700900kHz
EN input low voltageVIN = 0.9 V to 1.8 V0.3 × V
EN input high voltageVIN = 0.9 V to 1.8 V0.7 × V
EN input leakage current
LinSkip switching thresholdVIN = 1.25 V7.5mA
Short circuit currentVIN = 1.8 V
Output leakage currentOUT2
,
OUT2I
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 V3570µA
= 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 mA20
= 0 mA40
= 0 V,
(EN)
= 0 V,
(EN)
O(OUT2)
O(OUT2)
O(OUT1)
or
= 0 V52050
= 0 V280150
40
20
20
10
40
20
20
12
3.173.303.43
3.173.303.43
2.8833.12
2.8833.15
0.052.5
0.5
IN
0.010.1µA
mA
mA
mV
µA
IN
mA
1µA
V
V
P–P
V
V
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS60300, TPS60301, TPS60302, TPS60303
)
Ω
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)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Output load regulation
Output line regulation
No-load start-up time400µs
Impedance of first charge pump stage4Ω
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 V165
VIN ≥ 1.0 V330
VIN = 0.9 V1000
VIN = 1.0 V500Ω
(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
Ω
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 voltageVO ramping positiveVO – 2%V
Power good trip voltage hysteresisVO ramping negative10%
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 devicesV
Output resistance at power good
= VIN (unless otherwise noted)
(EN)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
O
TPS60300
TPS60301
TPS60302
TPS60303
TPS60302,
TPS60303
TPS60302,
TPS60303
All devicesV
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 V1.6mA
(PG)
V
= V
(PG)
(PG)
O(OUT2)
= 0 V100Ω
3
2.7
–5mA
0.010.1
0.010.1
0.3V
15Ω
V
µA
V
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
7
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