Not recommended for new designs, please refer to Si786
Si9130
Vishay Siliconix
Pin-Programmable Dual Controller - Portable PCs
FEATURES
• Fixed 5 V and Programmable 3.3 V, 3.45 V, or
3.6 V Step-Down Converters
• Less than 500 µA Quiescent Current per Converter
• 25 µA Shutdown Current
• 5.5 V to 30 V Operating Range
DESCRIPTION
The Si9130 Pin-programmable Dual Controller for Portable
PCs is a pin-programmable version of the Si786 dual-output
power supply controller for notebook computers. The Buck
controllers provide 5 V and a pin-programmable output
delivering 3.3 V, 3.45 V, or 3.6 V.
The circuit is a system level integration of two step-down
controllers and micropower 5 V and 3.3 V linear regulators.
The controllers perform high efficiency conversion of the
battery pack energy (typically 12 V) or the output of an ac to
dc wall converter (typically 18 V to 24 V dc) to 5 V and 3.3 V
system supply voltages. The micropower linear regulator can
be used to keep power management and back-up circuitry
alive during the shutdown of the step-down converters.
A complete power conversion and management system can
be implemented with the Si9130 Pin-programmable Dual
Controller for Portable PCs, an inexpensive linear regulator,
the Si9140 SMP Controller for High Performance Processor
Power Supplies, five Si4410 N-Channel TrenchFET
®
Power
MOSFETs, one Si4435 P-Channel TrenchFET Power
MOSFET, and two Si9712 PC Card (PCMCIA) Interface
Switches.
The Si9130 is available in both standard and lead (Pb)-free
28-pin SSOP packages and specified to operate over the
commercial (0 °C to 70 °C) and extended commercial
(- 10 °C to 90 °C) temperature ranges. See Ordering
Information for corresponding part numbers.
FUNCTIONAL BLOCK DIAGRAM
5.5 V to 30 V
Power
Section
3.3 V
SHUTDOWN
5 V ON/OFF
3.3 V ON/OFF
SYNC
Si9130
5V
µP
Memory
Peripherals
Document Number: 70190
S11-0975-Rev. G, 16-May-11
www.vishay.com
1
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Si9130
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Parameter
V+ to GND
PGND to GND
V
L
to GND
BST
3
, BST
5
to GND
LX
3
to BST
3
LX
5
to BST
5
Inputs/Outputs to GND (3.45 ADJ, 3.6 ADJ, SHDN, ON
5
, REF, SS
5
, CS
5
, FB
5
,
SYNC, CS
3
, FB
3
, SS
3
, ON
3
)
DL
3
, DL
5
to PGND
DH
3
to LX
3
DH
5
to LX
5
REF, V
L
Short to GND
REF Current
V
L
Current
Continuous Power Dissipation (T
A
= 70 °C)
a
Operating Temperature Range:
Lead Temperature (soldering, 10 sec)
Notes:
a. Device Mounted with all leads soldered or welded to PC board.
b. Derate 9.52 mW/°C above 70 °C.
Exposure to Absolute Maximum rating conditions for extended periods may affect device reliability. Stresses above Absolute Maximum rating may cause permanent
damage. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any
one time.
Limit
- 0.3 to 36
±2
- 0.3 to 7
- 0.3 to 36
- 7 to 0.3
- 7 to 0.3
- 0.3, (V
L
+ 0.3)
- 0.3, (V
L
+ 0.3)
- 0.3 (BST
3
+ 0.3)
- 0.3 (BST
5
+ 0.3)
Momentary
20
50
28-Pin SSOP
b
Si9130CG
Si9130LG
762
0 to 70
- 10 to 90
300
Unit
V
mA
mW
°C
SPECIFICATIONS
Parameter
3.3 V and 5 V Step-Down Controllers
Input Supply Range
FB
5
Output Voltage
0 mV < (CS
5
- FB
5
) < 70 mV, 6 V < V + < 30 V
(includes load and line regulation)
3.6 ADJ = 3.45 ADJ = OPEN
FB
3
Output Voltage
0 mV < (CS
3
- FB
3
) < 70 mV
6 V < V + < 30 V
(includes load and line regulation)
3.6 ADJ = OPEN
3.45 ADJ = GND
3.6 ADJ = GND
3.45 ADJ = OPEN
5.5
4.80
3.17
3.32
3.46
5.08
3.35
3.50
3.65
2.5
0.03
80
2.5
2
ON
5
= ON
3
= 0, 5.5 < V+ < 30
0 mA < I
L
< 25 mA
Falling Edge, Hysteresis = 1 %
100
4.0
120
6.5
30
5.20
3.46
3.60
3.75
%
%/V
mV
µA
mA
V
Specific Test Conditions
V+ = 15 V, I
VL
= I
REF
= 0 mA, SHDN = ON
3
= ON
5
= 5 V
Other Digital Input Levels 0 V or 5 V, T
A
= T
MIN
to T
MAX
Limits
Min.
a
Typ.
b
Max.
a
Unit
Load Regulation
Line Regulation
Current-Limit Voltage
SS
3
/SS
5
Source Current
SS
3
/SS
5
Fault Sink Current
Internal Regulator and Reference
V
L
Output Voltage
V
L
Fault Lockout Voltage
Either Controller (CS_ to FB_ = 0 to 70 mV)
Either Controller (V+ = 6 to 30)
CS
3
- FB
3
or CS
5
- FB
5
4.5
3.6
5.5
4.2
V
www.vishay.com
2
Document Number: 70190
S11-0975-Rev. G, 16-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Si9130
Vishay Siliconix
SPECIFICATIONS
Parameter
Internal Regulator and Reference
V
L
/FB
5
Switchover Voltage
REF Output Voltage
REF Fault Lockout Voltage
REF Load Regulation
V+ Shutdown Current
V+ Standby Current
Quiescent Power Consumption
(both PWM controllers on)
V+ Off Current
Oscillator and Inputs/Outputs
Oscillator Frequency
SYNC High Pulse Width
SYNC Low Pulse Width
SYNC Rise/Fall Time
Oscillator SYNC Range
Maximum Duty Cycle
Input Low Voltage
Input High Voltage
Input Current
DL
3
/DL
5
Sink/Source Current
DH
3
/DH
5
Sink/Source Current
DL
3
/DL
5
On-Resistance
DH
3
/DH
5
On-Resistance
SYNC = 3.3 V
SYNC = 0 V, 5 V
SHDN, ON
3
, ON
5
SYNC
SHDN, ON
3
, ON
5
SYNC
SHDN, ON
3
, ON
5
, V
IN
= 0 V, 5 V
V
OUT
= 2 V
BST
3
- LX
3
= BST
5
- LX
5
= 4.5 V, V
OUT
= 2 V
High or Low
High or Low
BST
3
- LX
3
= BST
5
- LX
5
= 4.5 V
1
1
7
7
2.4
V
L
- 0.5
±1
µA
A
Not Tested
240
89
92
92
95
0.8
V
SYNC = 3.3 V
SYNC = 0 V, 5 V
270
170
200
200
200
350
kHz
%
ns
300
200
330
230
kHz
Rising Edge of FB
5
, Hysteresis = 1 %
No External Load
c
Falling Edge
0 mA < I
L
< 5 mA
d
SHDN = ON
3
= ON
5
= 0 V, V+ = 30 V
ON
3
= ON
5
= 0 V, V+ = 30 V
FB
5
= CS
5
= 5.25 V
FB
3
= CS
3
= 3.5 V
FB
5
= CS
5
= 5.25 V, V
L
Switched Over to FB
5
4.2
3.24
2.4
30
25
70
5.5
30
4.7
3.36
3.2
75
40
110
8.6
60
mV
µA
mV
µA
V
Specific Test Conditions
V+ = 15 V, I
VL
= I
REF
= 0 mA, SHDN = ON
3
= ON
5
= 5 V
Other Digital Input Levels 0 V or 5 V, T
A
= T
MIN
to T
MAX
Limits
Min.
a
Typ.
b
Max.
a
Unit
Notes:
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
c. The main switching outputs track the reference voltage. Loading the reference reduces the main outputs slightly according to the closed-loop
gain (AV
CL
) and the reference voltage load-regulation error. AV
CL
for the 3.3 V supply is unity gain. AV
CL
for the 5 V supply is 1.54.
d. Since the reference uses V
L
as its supply, its V+ line regulation error is insignificant.
Document Number: 70190
S11-0975-Rev. G, 16-May-11
www.vishay.com
3
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Si9130
Vishay Siliconix
TYPICAL CHARACTERISTICS
(25 °C unless noted)
100
V
IN
= 6 V
90
V
IN
= 15 V
V
IN
= 30 V
70
SYNC = 0 V, 3.3 V Off
60
60
90
100
V
IN
= 6 V
Efficiency (%)
Efficiency (%)
80
80
V
IN
= 30 V
70
3.3 V Off
V
IN
= 15 V
50
0.001
0.01
0.1
5 V Output Current (A)
1
10
50
0.001
0.01
0.1
5 V Output Current (A)
1
10
Efficiency vs. 5 V Output Current, 200 kHz
100
100
Efficiency vs. 5 V Output Current, 300 kHz
V
IN
= 6 V
90
V
IN
= 6 V
Efficiency (%)
Efficiency (%)
80
V
IN
= 15 V
V
IN
= 30 V
SYNC = 0 V, 5 V On
60
60
80
V
IN
= 15 V
V
IN
= 30 V
5 V On
90
70
70
50
0.001
0.01
0.1
3.3 V Output Current (A)
1
10
50
0.001
0.01
0.1
1
10
3.3 V Output Current (A)
Efficiency vs. 3.3 V Output Current, 200 kHz
30
0.5
Efficiency vs. 3.3 V Output Current, 300 kHz
Quiescent Supply Current (mA)
25
Standby Supply Current (mA)
0.4
20
ON
3
= ON
5
= High
15
0.3
ON
3
= ON
5
= 0 V
0.2
10
5
0.1
0
0
6
12
18
24
30
0.0
0
6
12
18
24
30
Supply Voltage (V)
Supply Voltage (V)
Quiescent Supply Current vs. Supply Voltage
Standby Supply Current vs. Supply Voltage
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4
Document Number: 70190
S11-0975-Rev. G, 16-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Si9130
Vishay Siliconix
TYPICAL CHARACTERISTICS
(25 °C unless noted)
100
Mimimum V IN to VOUT Differential (V)
SHDN = 0 V
75
1.0
5 V Output
Still Regulating
0.8
Shutdown Supply Current (µA)
0.6
300 kHz
0.4
200 kHz
0.2
50
25
0
0
6
12
18
24
30
Supply Voltage (V)
0.0
0.001
0.01
0.1
5 V Output Current (A)
1
10
Shutdown Supply Current vs. Supply Voltage
Minimum V
IN
to V
OUT
Differential
vs. 5 V Output Current
1000.0
SYNC = REF (300 kHz)
ON
3
= ON
5
= 5 V
Switching Frequency (kHz)
100.0
10.0
5 V, V
IN
= 30 V
5 V, V
IN
= 7.5 V
1.0
3.3 V, V
IN
= 7.5 V
0.1
0.1
1
10
Load Current (mA)
100
1000
Switching Frequency vs. Load Current
5 V Output
50 mV/div
LX 10 V/div
2 V/div
5 V Output
50 mV/div
200 µS/div
I
Load
= 100 mA
V
IN
= 10 V
500 ns/div
5 V Output Current = 1 A
V
IN
= 16 V
Pulse-Skipping Waveforms
Pulse-Width Modulation Mode Waveforms
Document Number: 70190
S11-0975-Rev. G, 16-May-11
www.vishay.com
5
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
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