S-8353/8354 Series
www.ablic.com
STEP-UP, PWM CONTROL or PWM / PFM
SWITCHABLE
BUILT-IN TRANSISTOR SWITCHING REGULATOR
© ABLIC Inc., 2002-2023
Rev.3.2_00
The S-8353/8354 Series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an
oscillation circuit, a power MOS FET, an error amplifier, a phase compensation circuit, a PWM control circuit (S-8353 Series)
and a PWM / PFM switching control circuit (S-8354 Series).
The S-8353/8354 Series can configure the step-up switching regulator with an external coil, capacitor, and diode. In
addition to the above features, the small package and low current consumption make the S-8353/8354 Series ideal for
portable equipment applications requiring high efficiency.
The S-8353 Series realizes low ripple, high efficiency, and excellent transient characteristics due to its PWM control circuit
whose duty ratio can be varied linearly from 0% to 83% (from 0% to 78% for 250 kHz models), an excellently designed error
amplifier, and phase compensation circuits.
The S-8354 Series features a PWM / PFM switching controller that can switch the operation to a PFM controller with a duty
ratio is 15% under a light load to prevent a decline in the efficiency due to the IC operating current.
Features
• Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed
• Low current consumption : During operation 18.7 μA (3.3 V, 50 kHz, typ.)
During shutdown: 0.5 μA (max.)
• Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series)
15 % to 83 % (30 kHz and 50 kHz models)
15 % to 78 % (250 kHz models)
• External parts : Coil, capacitor, and diode
• Output voltage : Selectable in 0.1 V steps between 1.5 V and 6.5 V (for VDD / VOUT separate types)
Selectable in 0.1 V steps between 2.0 V and 6.5 V (for other than VDD / VOUT separate types)
• Output voltage accuracy : ±2.4%
• Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable
• Soft start function : 6 ms (50 kHz, typ.)
• Lead-free, Sn 100%, halogen-free*1
*1.
Refer to “ Product Name Structure” for details.
Applications
• Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs
• Power supplies for audio equipment such as portable CD / MD players
• Constant voltage power supplies for cameras, VCRs, and communication devices
• Power supplies for microcomputers
Packages
• SOT-23-3
• SOT-23-5
• SOT-89-3
1
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
Block Diagrams
(1) A, C and H Types (Without Shutdown Function)
CONT
VOUT
Oscillation circuit
PWMcontrol circuit
or PWM / PFM
swiching control
circuit
Soft start built-in
reference power
supply
IC internal
power supply
+
−
Phase
compensation
circuit
VSS
Figure 1
(2) A and H Types (With Shutdown Function)
CONT
VOUT
Oscillation circuit
PWMcontrol circuit
or PWM / PFM
swiching control
circuit
Soft start built-in
reference power
supply
IC internal
power supply
+
−
Phase
compensation
circuit
VSS
ON / OFF
Figure 2
(3) D and J Types (VDD / VOUT Separate Type)
CONT
VDD
VOUT
Oscillation circuit
IC internal
power supply
+
PWMcontrol circuit
−
or PWM / PFM
swiching control
circuit
Soft start built-in
reference power
supply
Phase
compensation
circuit
Figure 3
2
VSS
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
Product Name Structure
The control system, product types, output voltage, and packages for the S-8353/8354 Series can be selected at the
user’s request. Please refer to the “3. Product Name” for the definition of the product name, “4. Package” regarding
the package drawings and “5. Product Name List” for the full product names.
1. Function List
(1) PWM Control Products
Table 1
Switching
Frequency
[kHz]
Shutdown
Function
VDD / VOUT
Separate
Type
Package
S-8353AxxMC
S-8353AxxMA
S-8353AxxUA
S-8353CxxMA
S-8353CxxUA
50
50
50
30
30
Yes
−
−
−
−
−
−
−
−
−
SOT-23-5
SOT-23-3
SOT-89-3
SOT-23-3
SOT-89-3
S-8353DxxMC
50
−
Yes
SOT-23-5
S-8353HxxMC
250
Yes
−
SOT-23-5
S-8353HxxMA
250
−
−
SOT-23-3
S-8353HxxUA
250
−
−
SOT-89-3
S-8353JxxMC
250
−
Yes
SOT-23-5
Product Name
Application
Applications requiring shutdown function
Applications not requiring shutdown function
Applications not requiring shutdown function
For pager
For pager
Applications requiring variable output voltage
with an external resistor
Applications requiring a shutdown function
and a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications requiring variable output voltage
with an external resistor and a thin coil
(2) PWM / PFM Switching Control Products
Table 2
Switching
Frequency
[kHz]
Shutdown
Function
VDD / VOUT
Separate
Type
Package
S-8354AxxMC
S-8354AxxMA
S-8354AxxUA
S-8354CxxMA
50
50
50
30
Yes
−
−
−
−
−
−
−
SOT-23-5
SOT-23-3
SOT-89-3
SOT-23-3
S-8354DxxMC
50
−
Yes
SOT-23-5
S-8354HxxMC
250
Yes
−
SOT-23-5
S-8354HxxMA
250
−
−
SOT-23-3
S-8354HxxUA
250
−
−
SOT-89-3
S-8354JxxMC
250
−
Yes
SOT-23-5
Product Name
Application
Applications requiring shutdown function
Applications not requiring shutdown function
Applications not requiring shutdown function
For pager
Applications requiring variable output voltage
with an external resistor
Applications requiring a shutdown function
and a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications requiring variable output voltage
with an external resistor and a thin coil
3
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
2. Package and Function List by Product Type
Table 3
Series Name
S-8353 Series,
S-8354 Series
Type
A (Normal product or with shutdown
function)
A = 50 kHz
C (Normal product)
C = 30 kHz
D (VDD / VOUT separate type)
D = 50 kHz
H (Normal product or with shutdown
function)
H = 250 kHz
J (VDD / VOUT separate type)
J = 250 kHz
Package Name Shutdown Function VDD / VOUT Separate Type
Yes / No
(Abbreviation)
Yes / No
MC
Yes
No
MA / UA
No
MA
No
No
MC
No
Yes
MC
Yes
MA / UA
No
MC
No
No
Yes
3. Product Name
(1) SOT-23-3
S-835 x
x xx
MA - xxx
T1 U
Environmental code
U : Lead-free (Sn 100%), halogen-free
IC direction in tape specifications *1
Product code *2
Package code
MA : SOT-23-3
Output voltage
15 to 65
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
Product type
A : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5),
C : Normal products,
D : VDD / VOUT separate type,
H : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5),
J : VDD / VOUT separate type,
Control system
3 : PWM control
4 : PWM / PFM switching control
*1. Refer to the tape specifications.
*2. Refer to the Table 4 to Table 8 in the “5. Product Name List”.
4
fOSC = 50 kHz
fOSC = 30 kHz
fOSC = 50 kHz
fOSC = 250 kHz
fOSC = 250 kHz
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
(2) SOT-23-5, SOT-89-3
S-835 x
x xx
xx - xxx
T2
x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact our sales representatives)
IC direction in tape specifications *1
Product code *2
Package code
MC : SOT-23-5
UA : SOT-89-3
Output voltage
15 to 65
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
Product type
A : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5),
C : Normal products,
D : VDD / VOUT separate type,
H : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5),
J : VDD / VOUT separate type,
fOSC = 50 kHz
fOSC = 30 kHz
fOSC = 50 kHz
fOSC = 250 kHz
fOSC = 250 kHz
Control system
3 : PWM control
4 : PWM / PFM switching control
*1. Refer to the tape specifications.
*2. Refer to the Table 4 to Table 8 in the “5. Product Name List”.
4. Package
Package Name
SOT-23-3
SOT-23-5
SOT-89-3
Package
MP003-C-P-SD
MP005-A-P-SD
UP003-A-P-SD
Drawing Code
Tape
MP003-C-C-SD
MP005-A-C-SD
UP003-A-C-SD
Reel
MP003-Z-R-SD
MP005-A-R-SD
UP003-A-R-SD
5
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
5. Product Name List
(1) S-8353 Series
Table 4
Output
voltage
2.0 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
3.5 V
3.6 V
3.8 V
4.0 V
4.5 V
4.6 V
5.0 V
5.5 V
S-8353AxxMC
Series
S-8353A20MC-IQFT2x
S-8353A25MC-IQKT2x
S-8353A27MC-IQMT2x
S-8353A28MC-IQNT2x
S-8353A30MC-IQPT2x
S-8353A33MC-IQST2x
S-8353A35MC-IQUT2x
−
S-8353A38MC-IQXT2x
−
S-8353A45MC-IRET2x
−
S-8353A50MC-IRJT2x
S-8353A55MC-IROT2x
S-8353AxxMA
Series
−
−
−
−
S-8353A30MA-IQPT1U
S-8353A33MA-IQST1U
−
−
−
−
−
−
S-8353A50MA-IRJT1U
−
S-8353AxxUA
Series
−
−
−
−
S-8353A30UA-IQPT2x
S-8353A33UA-IQST2x
−
S-8353A36UA-IQVT2x
S-8353A38UA-IQXT2x
S-8353A40UA-IQZT2x
−
−
S-8353A50UA-IRJT2x
S-8353A55UA-IROT2x
S-8353CxxMA
Series
−
−
−
−
S-8353C30MA-ISPT1U
−
−
−
−
−
−
S-8353C46MA-ITFT1U
−
−
Table 5
Output
voltage
S-8353CxxUA
Series
−
−
−
S-8353C30UA-ISPT2x
−
−
−
−
−
−
−
−
−
−
−
S-8353DxxMC
Series
S-8353HxxMC
Series
S-8353HxxMA
Series
−
−
−
S-8353H30MA-IWPT1U
−
−
S-8353H33MA-IWST1U
−
−
−
−
−
−
−
−
2.0 V
S-8353D20MC-IUFT2x
S-8353H20MC-IWFT2x
−
2.6 V
S-8353H26MC-IWLT2x
−
2.8 V
S-8353H28MC-IWNT2x
3.0 V
S-8353D30MC-IUPT2x
S-8353H30MC-IWPT2x
−
3.1 V
S-8353H31MC-IWQT2x
−
3.2 V
S-8353H32MC-IWRT2x
−
3.3 V
S-8353H33MC-IWST2x
−
3.5 V
S-8353H35MC-IWUT2x
−
3.7 V
S-8353H37MC-IWWT2x
−
3.8 V
S-8353H38MC-IWXT2x
−
4.0 V
S-8353H40MC-IWZT2x
−
4.5 V
S-8353H45MC-IXET2x
5.0 V
S-8353D50MC-IVJT2x
S-8353H50MC-IXJT2x
−
6.0 V
S-8353H60MC-IXTT2x
−
6.5 V
S-8353H65MC-IXYT2x
Remark 1. Please contact our sales representatives for products other than the above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
6
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
Table 6
Output
voltage
1.8 V
2.0 V
2.1 V
2.5 V
3.0 V
3.3 V
3.6 V
5.0 V
S-8353HxxUA
Series
−
−
−
−
−
S-8353H33UA-IWST2x
S-8353H36UA-IWVT2x
S-8353H50UA-IXJT2x
S-8353JxxMC
Series
S-8353J18MC-IYDT2x
S-8353J20MC-IYFT2x
S-8353J21MC-IYGT2x
S-8353J25MC-IYKT2x
S-8353J30MC-IYPT2x
S-8353J33MC-IYST2x
−
S-8353J50MC-IZJT2x
(2) S-8354 Series
Table 7
Output
voltage
2.0 V
2.7 V
2.8 V
3.0 V
3.3 V
3.5 V
3.8 V
4.0 V
5.0 V
S-8354AxxMC
Series
−
S-8354A27MC-JQMT2x
−
S-8354A30MC-JQPT2x
S-8354A33MC-JQST2x
−
S-8354A38MC-JQXT2x
S-8354A40MC-JQZT2x
S-8354A50MC-JRJT2x
S-8354AxxMA
Series
S-8354A20MA-JQFT1U
S-8354A27MA-JQMT1U
S-8354A28MA-JQNT1U
S-8354A30MA-JQPT1U
S-8354A33MA-JQST1U
−
−
−
S-8354A50MA-JRJT1U
S-8354AxxUA
Series
−
−
S-8354A28UA-JQNT2x
S-8354A30UA-JQPT2x
S-8354A33UA-JQST2x
S-8354A35UA-JQUT2x
−
S-8354A40UA-JQZT2x
S-8354A50UA-JRJT2x
S-8354CxxMA
Series
−
−
−
S-8354C30MA-JSPT1U
−
−
−
−
−
Table 8
Output
voltage
S-8354DxxMC
Series
−
S-8354D20MC-JUFT2x
−
−
S-8354D30MC-JUPT2x
−
S-8354D33MC-JUST2x
−
−
−
−
−
−
S-8354HxxMC
S-8354HxxUA
S-8354JxxMC
Series
Series
Series
−
−
1.5 V
S-8354J15MC-JYAT2x
−
−
2.0 V
S-8354J20MC-JYFT2x
−
−
2.5 V
S-8354H25MC-JWKT2x
−
2.7V
S-8354H27MC-JWMT2x S-8354H27UA-JWMT2x
−
3.0 V
S-8354H30MC-JWPT2x
S-8354J30MC-JYPT2x
−
−
3.1 V
S-8354H31MC-JWQT2x
−
3.3 V
S-8354H33MC-JWST2x
S-8354J33MC-JYST2x
−
−
3.5 V
S-8354H35MC-JWUT2x
−
−
4.0 V
S-8354H40MC-JWZT2x
−
−
4.2 V
S-8354H42MC-JXBT2x
−
−
4.5 V
S-8354H45MC-JXET2x
−
−
4.7 V
S-8354H47MC-JXGT2x
−
5.0 V
S-8354H50MC-JXJT2x
S-8354J50MC-JZJT2x
Remark 1. Please contact our sales representatives for products other than the above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
7
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
Pin Configurations
Table 9 A, C and H Types
(Without shutdown function, VDD / VOUT non-separate type)
SOT-23-3
Top view
1
Pin No.
1
2
3
2
Symbol
VOUT
VSS
CONT
Description
Output voltage pin and IC power supply pin
GND pin
External inductor connection pin
3
Figure 4
Table 10 A and H Types
(With shutdown function, VDD / VOUT non-separate type)
SOT-23-5
Top view
4
5
1
2
3
Figure 5
Pin No.
Symbol
Description
Shutdown pin
1
“H”: Normal operation (Step-up operating)
ON / OFF
“L”: Step-up stopped (Entire circuit stopped)
2
VOUT
Output voltage pin and IC power supply pin
3
NC*1
No connection
4
VSS
GND pin
5
CONT
External inductor connection pin
*1. The NC pin indicates electrically open.
Table 11 D and J Types
(Without shutdown function, VDD / VOUT separate type)
Pin No.
Symbol
Description
1
VOUT
Output voltage pin
2
VDD
IC power supply pin
3
NC*1
No connection
4
VSS
GND pin
5
CONT
External inductor connection pin
*1. The NC pin indicates electrically open.
SOT-89-3
Top view
Table 12 A and H Types
(Without shutdown function, VDD / VOUT non-separate type)
Pin No.
1
2
3
1
2
Figure 6
8
3
Symbol
VSS
VOUT
CONT
Description
GND pin
Output voltage pin and IC power supply pin
External inductor connection pin
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
Absolute Maximum Ratings
Table 13
(Ta = 25°C unless otherwise specified)
Item
Symbol
VOUT pin voltage
voltage*2
VDD pin
CONT pin voltage
CONT pin current
VDD
VCONT
ICONT
SOT-23-3
SOT-23-5
PD
SOT-89-3
Operating ambient temperature
Topr
Storage temperature
Tstg
*1. With shutdown function
*2. For VDD / VOUT separate type
*3. When mounted on board
[Mounted board]
(1) Board size :
114.3 mm × 76.2 mm × t1.6 mm
(2) Board name :
JEDEC STANDARD51-7
Caution
VSS − 0.3 to VSS + 12
V
VSS − 0.3 to VSS + 12
VSS − 0.3 to VSS + 12
300
150 (When not mounted on board)
430*3
250 (When not mounted on board)
600*3
500 (When not mounted on board)
1000*3
−40 to + 85
−40 to + 125
V
V
mA
mW
mW
mW
mW
mW
mW
°C
°C
The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
When mounted on board
(2)
When not mounted on board
600
1000
Power dissipation (PD) [mW]
1200
Power dissipation (PD) [mW]
(1)
Unit
V
VOUT
VON / OFF
ON / OFF pin voltage*1
Power dissipation
Absolute maximum rating
VSS − 0.3 to VSS + 12
SOT-89-3
800
SOT-23-5
600
SOT-23-3
400
200
0
0
50
100
150
Ambient temperature (Ta) [°C]
500
SOT-89-3
400
SOT-23-5
300
SOT-23-3
200
100
0
0
50
100
150
Ambient temperature (Ta) [°C]
Figure 7 Power Dissipation of Packages
9
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
Electrical Characteristics
(1) 50 kHz Product (A and D Types)
Table 14
Item
Symbol
Condition
Output voltage
VOUT
−
Input voltage
Operation start voltage
Oscillation start voltage
VIN
VST1
VST2
Operation holding voltage
VHLD
−
IOUT = 1 mA
No external parts, Voltage applied to VOUT
IOUT = 1 mA, Judged by decreasing VIN
voltage gradually
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) × 0.95
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) + 0.5 V
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
Current consumption 1
ISS1
Current consumption 2
ISS2
Current consumption during
shutdown
(With shutdown function)
ISSS
Switching current
Switching transistor leakage
current
Line regulation
Load regulation
Output voltage temperature
coefficient
Oscillation frequency
Maximum duty ratio
PWM / PFM switching duty
ratio (For S-8354 Series)
VON / OFF = 0 V
S-835xx15 to 19
S-835xx20 to 24
S-835xx25 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
−
−
V
2
−
−
−
−
−
−
−
−
−
−
−
−
10.8
13.3
18.7
24.7
31.0
37.8
4.8
5.0
5.1
5.3
5.5
5.7
18.0
22.2
31.1
41.1
51.6
63.0
9.5
9.9
10.2
10.6
10.9
11.3
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
1
1
1
1
1
1
1
1
1
1
1
1
−
−
0.5
μA
1
80
103
125
144
176
200
215
128
165
200
231
282
320
344
−
−
−
−
−
−
−
mA
mA
mA
mA
mA
mA
mA
1
1
1
1
1
1
1
VCONT = 0.4 V
ISWQ
VCONT = VOUT = 10 V
−
−
0.5
μA
1
ΔVOUT1
ΔVOUT2
ΔVOUT
ΔTa • VOUT
VIN = VOUT(S) × 0.4 to × 0.6
IOUT = 10 μA to VOUT(S) / 250 × 1.25
−
−
30
30
60
60
mV
mV
2
2
Ta = −40°C to +85°C
−
±50
−
ppm / °C
2
fOSC
MaxDuty
VOUT = VOUT(S) × 0.95
VOUT = VOUT(S) × 0.95
42.5
75
50
83
57.5
90
kHz
%
1
1
PFMDuty
VIN = VOUT(S) − 0.1 V, No-load
10
15
24
%
1
VSH
VSL1
VSL2
0.75
−
−
−
−
−
−
0.3
0.2
V
V
V
1
1
1
− 0.1
−
0.1
μA
1
− 0.1
−
0.1
μA
1
3.0
−
6.0
85
12.0
−
ms
%
2
2
ON / OFF pin input current
(With shutdown function)
ISH
ISL
VON / OFF = 0 V
Soft start time
Efficiency
tSS
EFFI
10
0.7
ISW
Measured oscillation at CONT pin
At VOUT≥1.5 V
Judged oscillation stop at
CONT pin
At VOUT