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TPS60111PWP
Datasheet
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Texas Instruments TPS60111PWPR, TPS60111PWP Datasheet

TPS60111
REGULATED 5-V 150-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS216A – JUNE 1999 – SEPTEMBER 1999
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
features
Up to 150-mA Output Current
Less Than 10-mVpp Output Voltage Ripple
No Inductors Required/Low EMI
Regulated 5-V ±4% Output
Only Four External Components Required
Up to 90% Efficiency
2.7-V to 5.4-V Input Voltage Range
60-µA Quiescent Supply Current
0.05-µA Shutdown Current
Load Isolated in Shutdown
Space-Saving Thermally-Enhanced TSSOP PowerPAD Package
Evaluation Module Available (TPS60110EVM–132)
applications
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 TPS60111 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 150 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 TPS601 11 can start into full load with loads as low as 33 Ω.
The TPS601 11 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 TPS601 11 switching frequency is 300 kHz. The logic shutdown function reduces the supply current to 1-µA (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
SKIP =COM = CLK = 0 V VIN = 3.6 V IO = 150 mA CO = 22 µF + 10 µF
X5R Ceramic
5.2
5
5.05
5.1
5.15
4.8
4.85
4.9
4.95
– Output Voltage – VV
O
52.50 0.5 1 1.5 2 3 3.5 4 4.5
t – Time – µs
IN IN
C1+ C1– ENABLE
OUT OUT
FB
C2+ C2–
SYNC
SKIP COM CLK
PGND GND
INPUT
2.7 V to
5.4 V
CIN
4.7 µF
OUTPUT 5 V 150 mA
C
O
15 µF
C
2F
1 µF
C
1F
1 µF
+
OFF/ON
TPS60110
+
TPS60111 REGULATED 5-V 150-mA LOW-NOISE CHARGE PUMP DC/DC CONVERTER
SLVS216A – JUNE 1999 – SEPTEMBER 1999
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
GND
SYNC
ENABLE
FB
OUT
C1+
IN
C1– PGND PGND
GND CLK COM SKIP OUT C2+ IN C2– PGND PGND
PWP PACKAGE
(TOP VIEW)
Figure 2. Bottom View of PWP Package,
Showing the Thermal Pad
Thermal
Pad
AVAILABLE OPTIONS
PACKAGE
TSSOP
†
(PWP)
TPS60111PWP
†
This package is available taped and reeled. To order this packaging option, add an R suffix to the part number (e.g., TPS601 11PWPR).
Terminal Functions
TERMINAL
NAME NO.
I/O
DESCRIPTION
CLK 19 I Input for external clock signal. If the internal clock is used, connect this terminal to GND. C1+ 6 Positive terminal of the charge-pump capacitor C
1F
C1– 8 Negative terminal of the charge-pump capacitor C
1F
C2+ 15 Positive terminal of the charge-pump capacitor C
2F
C2– 13 Negative terminal of the charge-pump capacitor C
2F
COM 18 I Mode selection.
When COM is logic low the charge pump operates in push-pull mode to minimize output ripple. When COM is connected to IN the regulator operates in single-ended mode requiring only one flying capacitor.
ENABLE 3 I ENABLE Input. The device turns off, the output disconnects from the input, and the supply current decreases to
0.05 µA when ENABLE is a logic low. Connect ENABLE to IN for normal operation.
FB 4 I FEEDBACK input. Connect FB to OUT as close to the load as possible to achieve best regulation. Resistive divider
is on-chip to match internal reference voltage of 1.22 V . GND 1, 20 GROUND. Analog ground for internal reference and control circuitry. Connect to PGND through a short trace. IN 7, 14 I Supply Input. Connect to an input supply in the 2.7-V to 5.4-V range. Bypass IN to GND with a (CO/2) µF capacitor.
Connect both INs through a short trace. OUT 5, 16 O Regulated 5-V power output. Connect both OUTs through a short trace and bypass OUT to GND with the output
filter capacitor CO. PGND 9–12 PGND power ground. Charge-pump current flows through this pin. Connect all PGNDs together. SKIP 17 I Mode selection. When SKIP is logic low the charge pump operates in constant-frequency mode. Thus output ripple
and noise are minimized. When SKIP is connected to IN, the regulator operates in low-quiescent-current
pulse-skip mode. SYNC 2 I Selection for external clock signal. Connect to GND to use the internally generated clock signal. Connect to IN
for external synchronization. In this case, the clock signal needs to be fed through CLK.
TPS60111
REGULATED 5-V 150-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS216A – JUNE 1999 – SEPTEMBER 1999
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings (unless otherwise noted)
†‡
Input voltage range, V
I
(IN, OUT, ENABLE, SKIP, COM, CLK, FB, SYNC) –0.3 V to 5.5 V. . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(C1+, C2+ to GND) –0.3 V to (VO + 0.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(C1–, C2– to GND) –0.3 V to (VIN + 0.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See Dissipation Rating Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current 200 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10s 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, TJ 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
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.
‡
V
ENABLE
, V
SKIP
, V
COM
, V
CLK
and V
SYNC
can exceed VIN up to the maximum rated voltage without increasing the leakage current
drawn by these mode select inputs.
DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURE (see Figure 3)
T
≤ 25°C DERATING FACTOR T
= 70°C T
= 85°C
PACKAGE
A
POWER RATING ABOVE TA = 25°CAPOWER RATINGAPOWER RATING
PWP 700 mW 5.6 mW/°C 448 mW 364 mW
DISSIPATION RATING TABLE 2 – CASE TEMPERATURE (see Figure 4)
T
≤ 62.5°C DERATING FACTOR T
= 70°C T
= 85°C
PACKAGE
C
POWER RATING ABOVE TC = 62.5°CCPOWER RATINGCPOWER RATING
PWP 25 W 285.7 mW/°C 22.9 W 18.5 W
Figure 3
1200
800
400
0
25 50 75 100
– Maximum Continuous Dissipation – mW
DISSIPATION DERATING CURVE
§
vs
FREE-AIR TEMPERATURE
125 150
1400
1000
600
200
PWP Package R
θJA
= 178°C/W
P
D
TA – Free-Air Temperature – °C
Figure 4
MAXIMUM CONTINUOUS DISSIPATION
§
vs
CASE TEMPERATURE
TC – Case Temperature – °C
15
10
5
0
25 50 75 100
20
25
30
125 150
Measured with the exposed thermal pad coupled to an infinite heat sink with a thermally conductive compound (the thermal conductivity of the compound is 0.815 W/m ⋅°C). The R
θJC
is 3.5°C/W.
PWP Package
– Maximum Continuous Dissipation – W P
D
§
Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute maximum temperature of 150°C. It is recommended not to exceed a junction temperature of 125°C.
TPS60111 REGULATED 5-V 150-mA LOW-NOISE CHARGE PUMP DC/DC CONVERTER
SLVS216A – JUNE 1999 – SEPTEMBER 1999
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at CIN = 15 µF, C1F = C2F = 2.2 µF†, CO = 33 µF, TC = –40°C to 85°C, V
IN
= 3 V, VFB = VO, V
ENABLE
= VIN, V
SKIP
= VIN or 0 V and V
COM
= V
CLK
= V
SYNC
= 0 V (unless otherwise
noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage
2.7 5.4 V
I
O(MAX)
Maximum output current 150 mA
2.7 V < VIN < 3 V, 0 < IO < 75 mA, V
O(Start-Up)
= 5 V, TC = 25°C
4.8 5 5.2
V
O
Output voltage
3 V < VIN < 5 V, 0 < IO < 150 mA
4.8 5 5.2
V
5 V < VIN < 5.4 V, 0 < IO < 150 mA 4.8 5 5.25
V
O(RIP)
Output voltage ripple IO = 150 mA, V
SKIP
= 0 V 10
‡
mV
PP
I
O(LEAK)
Output leakage current VIN = 3.6 V, V
ENABLE
= 0 V 1 µA
Quiescent current
V
SKIP
= VIN = 3.6 V 60 90 µA
I
Q
(no-load input current)
V
SKIP
= 0 V, VIN = 3.6 V
2.8 mA
I
DD(SDN)
Shutdown supply current VIN = 3.6 V, V
ENABLE
= 0 V 0.05 1 µA
f
OSC(int)
Internal switching frequency VIN = 3.6 V 200 300 400 kHz
f
OSC(ext)
External clock frequency V
SYNC
= VIN,V
IN
= 2.7 V to 5.4 V 400 600 800 kHz
External clock duty cycle V
SYNC
= VIN,V
IN
= 2.7V to 5.4 V 20% 80%
Efficiency IO = 75 mA 80%
V
INL
Input voltage low, ENABLE, SKIP, COM, CLK, SYNC
VIN = 2.7 V
0.3 × V
IN
V
V
INH
Input voltage high, ENABLE, SKIP, COM, CLK, SYNC
VIN = 5.4 V
0.7 × V
IN
V
I
I(LEAK)
Input leakage current, ENABLE, SKIP, COM, CLK, SYNC
V
ENABLE
= V
SKIP
= V
COM
= V
CLK
=
V
SYNC
= V
GND
or V
IN
0.01 0.1 µA
Output load regulation
VO = 5 V, 1 mA < IO < 150 mA TC = 25°C
0.002 %/mA
Output line regulation
3 V < VIN < 5 V, VO = 5 V, IO = 75 mA, TC = 25°C
0.6 %/V
Short circuit current
VIN = 3.6 V VO = 0 V, TC = 25°C
150 mA
†
Use only ceramic capacitors with X5R or X7R dielectric as flying capacitors.
‡
Achieved with CO = 22 µF + 10 µF X5R dielectric ceramic capacitor
TPS60111
REGULATED 5-V 150-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS216A – JUNE 1999 – SEPTEMBER 1999
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 5
50
40
20
0
0.1 1 10
Efficiency – %
70
90
EFFICIENCY
vs
OUTPUT CURRENT
100
100 1000
80
60
30
10
IO – Output Current – mA
V
(SKIP)
= V
IN
VIN = 3 V
VIN = 3.3 V
VIN = 3.6 V
VIN = 2.7 V
Figure 6
50
40
20
0
110
Efficiency – %
70
90
EFFICIENCY
vs
OUTPUT CURRENT
100
100 1000
80
60
30
10
IO – Output Current – mA
V
(SKIP)
= 0 V
VIN = 2.7 V
VIN = 3 V
VIN = 3.3 V
VIN = 3.6 V
Figure 7
60
50
40
2.5 3 3.5 4
– Quiescent Supply Current –
80
QUIESCENT SUPPLY CURRENT
vs
INPUT VOLTAGE
90
4.5 5.5
70
VIN – Input Voltage – V
I
Q
Aµ
V
(SKIP)
= V
IN
5
65
55
45
85
75
Figure 8
– Quiescent Supply Current – mA
QUIESCENT SUPPLY CURRENT
vs
INPUT VOLTAGE
VIN – Input Voltage – V
I
Q
2.5 3 3.5 4 4.5 5.55
V
(SKIP)
= 0 V
2.4
2
1.6
3.2
3.6
2.8
2.6
2.2
1.8
3.4
3
†TC = 25°C, V
COM
= V
SYNC
= 0 V, CIN = 15 µF, C1F and C2F = 2.2 µF (X7R ceramic), CO = 33 µF, unless otherwise noted
TPS60111 REGULATED 5-V 150-mA LOW-NOISE CHARGE PUMP DC/DC CONVERTER
SLVS216A – JUNE 1999 – SEPTEMBER 1999
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 9
IO – Output Current – mA
5
4.9
4.8
4.7 110
– Output Voltage – V
5.1
5.2
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.3
100 1000
V
O
V
(SKIP)
= 0 V
VIN = 4 V
VIN = 3.6 V
VIN = 3 V
VIN = 2.7 V
VIN = 5.4 V
Figure 10
IO – Output Current – mA
5
4.9
4.8
4.7 110
– Output Voltage – V
5.1
5.2
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.3
100 1000
V
O
V
(SKIP)
= V
IN
VIN = 4 V
VIN = 3.6 V
VIN = 3 V
VIN = 2.7 V
VIN = 5.4 V
Figure 11
5.04
4.98
4.94
4.9
– Output Voltage – V
5.06
5.08
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
5.1
5.02
5
4.96
4.92
VIN – Input Voltage – V
V
O
V
(SKIP)
= 0 V
2.5 3 3.5 4 4.5 5.55
IO = 1 mA to 10 mA
IO = 150 mA
Figure 12
5.04
4.98
4.94
4.9
– Output Voltage – V
5.06
5.08
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
5.1
5.02
5
4.96
4.92
VIN – Input Voltage – V
V
O
2.5 3 3.5 4 4.5 5.55
V
(SKIP)
= V
IN
IO = 1 mA to 150 mA
†TC = 25°C, V
COM
= V
SYNC
= 0 V, CIN = 15 µF, C1F and C2F = 2.2 µF (X7R ceramic), CO = 33 µF, unless otherwise noted
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