S-8353 Seiko Instruments, S-8353 Datasheet

no-image

S-8353

Manufacturer Part Number
S-8353
Description
(S-8353 / S-8354) PWM Control Switchable Built-in Transistor Switching Regulator
Manufacturer
Seiko Instruments
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
S-8353A25MC-IQKT2G
Manufacturer:
SII/精工
Quantity:
20 000
Part Number:
S-8353A28MC-IQN-T2G
Manufacturer:
SEIKO/精工
Quantity:
20 000
Part Number:
S-8353A30MA-IQP-T2G
Manufacturer:
SEIKO/精工
Quantity:
20 000
Part Number:
S-8353A30MC-IQP-T2
Manufacturer:
SEK
Quantity:
71 980
Part Number:
S-8353A30MC-IQP-T2
Manufacturer:
SEK
Quantity:
20 000
Part Number:
S-8353A30MC-IQP-T2G
Manufacturer:
SEIKO/精工
Quantity:
20 000
Part Number:
S-8353A33MC-IQST2G
Manufacturer:
SEIKO
Quantity:
74 000
Part Number:
S-8353A33MC-IQST2G
Manufacturer:
SII
Quantity:
4 401
Part Number:
S-8353A33UA-IQS-T2
Manufacturer:
SIEKO
Quantity:
37 000
Part Number:
S-8353A50MC-IRJ-T2
Manufacturer:
PANASONIC
Quantity:
140
www.DataSheet4U.com
Rev.1.4
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE
BUILT-IN TRANSISTOR SWITCHING REGULATOR
Features
Applications
Packages
• Low voltage operation: Startup at 0.9 V min. (I
• Low current consumption : During operation 18.7
• Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series)
• External parts : Coil, capacitor, and diode
• Output voltage : Selectable in 0.1 V steps between 1.5 and 6.5 V (for V
• Output voltage accuracy : ±2.4%
• Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable
• Soft start function : 6 ms (50 kHz, typ.)
• 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
SOT-23-3
SOT-23-5
SOT-89-3
Package Name
_00
15 % to 83 % (30 kHz and 50 kHz models)
15 % to 78 % (250 kHz models)
Selectable in 0.1 V steps between 2.0 and 6.5 V (for other than V
During shutdown: 0.5
MP003-A
MP005-A
UP003-A
Package
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.
Seiko Instruments Inc.
OUT
µ
= 1 mA) guaranteed
µ
A (max.)
A (3.3 V, 50 kHz, typ.)
Drawing Code
MP003-A
MP005-A
UP003-A
DD
Tape
/ V
OUT
S-8353/8354 Series
separate types)
DD
/ V
OUT
separate types)
MP003-A
MP005-A
UP003-A
Reel
1

Related parts for S-8353

S-8353 Summary of contents

Page 1

... 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 ...

Page 2

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Block Diagrams ( and H Types (Without Shutdown Function) (2) A and H Types (With Shutdown Function) (3) D and J Types ( OUT 2 CONT Oscillation circuit IC internal power supply PWMcontrol circuit or PWM / PFM ...

Page 3

... 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 and “4. Product Name List” for the full product names. ...

Page 4

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series 2. Package and Function List by Product Type Series Name S-8353 Series, A (Normal product or with shutdown function) S-8354 Series kHz C (Normal product kHz OUT kHz ...

Page 5

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR Rev.1.4 _00 4. Product Name List (1) S-8353 Series Output S-8353AxxMC voltage Series 2.0 V S-8353A20MC-IQF-T2 2.5 V S-8353A25MC-IQK-T2 2.7 V S-8353A27MC-IQM-T2 2.8 V S-8353A28MC-IQN-T2 3.0 V S-8353A30MC-IQP-T2 3.3 V S-8353A33MC-IQS-T2 − 3.6 V 3.8 V S-8353A38MC-IQX-T2 − 4.0 V 4.5 V S-8353A45MC-IRE-T2 5.0 V S-8353A50MC-IRJ-T2 5.5 V S-8353A55MC-IRO-T2 Remark Please contact the SII marketing department for products with an output voltage other than those specified above. ...

Page 6

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series (2) S-8354 Series Output S-8354AxxMC voltage Series − 2.0 V 2.7 V S-8354A27MC-JQM-T2 3.0 V S-8354A30MC-JQP-T2 3.3 V S-8354A33MC-JQS-T2 − 3.5 V 4.0 V S-8354A40MC-JQZ-T2 5.0 V S-8354A50MC-JRJ-T2 Remark Please contact the SII marketing department for products with an output voltage other than those specified above. ...

Page 7

... Table 11 A and H Types (Without shutdown function, V Pin No. Symbol 1 VSS GND pin 2 VOUT Output voltage pin and IC power supply pin 3 CONT External inductor connection pin Seiko Instruments Inc. S-8353/8354 Series / V non-separate type) DD OUT Pin Description / V non-separate type) DD OUT Pin Description / V separate type) DD ...

Page 8

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Absolute Maximum Ratings Item VOUT pin voltage ON / OFF pin voltage (A type) *2 VDD pin voltage (D type) CONT pin voltage CONT pin current Power dissipation SOT-23-3 SOT-23-5 SOT-89-3 Operating ambient temperature Storage temperature *1 ...

Page 9

... Measured oscillation at CONT pin Judged oscillation stop at CONT pin × 0. OUT( OFF OFF − − Seiko Instruments Inc. S-8353/8354 Series ( ° C unless otherwise specified) Min. Typ. Max OUT(S) OUT(S) OUT(S) × 0.976 × 1.024 − − 10 − − ...

Page 10

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series External parts Coil: CDRH6D28-101 of Sumida Corporation Diode: MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd. Capacitor: F93 ( µ F tantalum type) of Nichicon Corporation × 0.6 applied OUT(S) OUT ...

Page 11

... V OUT OUT(S) × 0. OUT OUT( − 0.1 V, No-load IN OUT(S) − − / 250 Ω OUT(S) Seiko Instruments Inc. S-8353/8354 Series ( ° C unless otherwise specified) Min. Typ. Max. Unit OUT(S) OUT(S) OUT(S) V × 0.976 × 1.024 − − − ...

Page 12

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series (3) 250 kHz Product (H and J Types) Item Symbol Output voltage V OUT Input voltage V IN Operation start voltage V ST1 Oscillation start voltage V ST2 Operation holding voltage V HLD Current consumption 1 I SS1 ...

Page 13

... V.) / 250 Ω OUT( OFF pin is connected to V OUT = 0 Seiko Instruments Inc. S-8353/8354 Series is the typical value of the actual output OUT However, 1.8 V ≤ V ≤  recommended DD ≥ 1.8 V must be applied for products with a set DD 13 ...

Page 14

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Measurement Circuits 1. 300 Ω CONT * OFF VSS 2. CONT + − VSS *1. With shutdown function *2. For separate type DD OUT 14 VOUT A *2 VDD + − 0.1 µF Figure 8 + VOUT V *2 VDD − ...

Page 15

... In the S-8353 Series, the switching frequency does not change, although the pulse width changes from 0 to 83% (78% for H and J type) corresponding to each load current. The ripple voltage generated from switching can thus be removed easily using a filter because the switching frequency is constant ...

Page 16

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series 3. ON/ OFF Pin (Shutdown Pin) (SOT-23-5 Package Products of A and H Types OFF pin stops or starts step-up operation. Setting the ON / OFF pin to the “L” level stops operation of all the internal circuits and reduces the current consumption significantly ...

Page 17

... OSC the energy stored emitted through a diode to the output capacitor. OFF ) is generated : OUT D ) flowing through the diode into V L − Seiko Instruments Inc. S-8353/8354 Series D VOUT + C L − VSS : during t : OUT OFF (1) (2) (3) (4) (5) (6) 17 ...

Page 18

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Integration of the equation ( follows :  −  OUT  During t , the energy is stored in L and is not transmitted the energy of the capacitor (C ...

Page 19

... I PK − (A) ≅ 0 < 0 more OUT more PK Seiko Instruments Inc. S-8353/8354 Series For smaller ripple voltage ? Larger inductance Larger output capacitance ) and efficiency (η). OUT increases OUT in discontinuous mode is calculated by the PK (17) 19 ...

Page 20

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series 3. Capacitor ( capacitor on the input side (C current. Select a C value according to the impedance of the power supply used capacitor on the output side (C flows intermittently to the load current, so step-up types need a larger capacitance than step-down types. Therefore, select an appropriate capacitor in accordance with the ripple voltage, which increases in case of a higher output voltage or a higher load current. The capacitor value should be 10 µ ...

Page 21

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR Rev.1.4 _00 Standard Circuits (1) S-8353AxxMA / UA, S-8353CxxMA, S-8353HxxMA/UA, S-8354AxxMA/UA, S-8354CxxMA, S-8354HxxMA / − Remark The power supply for the IC chip is from the VOUT pin. (2) S-8353AxxMC, S-8353HxxMC, S-8354AxxMC, S-8354HxxMC ...

Page 22

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series (3) S-8353DxxMC, S-8353JxxMC, S-8354DxxMC, S-8354JxxMC − Remark The power supply for the IC chip is from the VOUT pin. Caution The Above connection diagram will not guarantee successful operation. ...

Page 23

... SII claims no responsibility for any and all disputes arising out connection with any infringement of the products including this IC upon patents owned a third party separate type) in the power supply line of the IC close to the IC DD OUT Seiko Instruments Inc. S-8353/8354 Series 23 ...

Page 24

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Application Circuits 1. Using Ceramic Capacitor Example When using small R ESR corresponding to the R ESR R differs depending on L value, the capacitance, the wiring, and the application (output load). 1 The following example shows a circuit using R characteristics ...

Page 25

... OUT = 100 1000 I [mA] OUT ) vs. Ripple voltage (Vr) OUT 1 10 100 1000 I [mA] OUT Seiko Instruments Inc. S-8353/8354 Series ) vs. Ripple voltage (Vr) under conditions in OUT (b) Output current (I ) vs. Output voltage (V OUT 3.40 3. 3.20 0.01 0 [mA] OUT ...

Page 26

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Characteristics (Typical Data) 1. Example of Major Temperature characteristics (Ta = − ° (1) Current Consumption −40 − [°C] (2) Current Consumption −40 −20 ...

Page 27

... OSC 100 ( 250 kHz OSC 100 ) vs. (11) SL1 f = 250 kHz OSC 100 Seiko Instruments Inc. S-8353/8354 Series f = 250 kHz OSC 350 300 250 200 150 −40 − 100 Ta [° 250 kHz OSC 100 ...

Page 28

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series (12) Soft Start Time ( −40 − [°C] (13) Operation Start Voltage (V 1.2 1.0 0.8 0.6 0.4 0.2 0 −40 − [°C] (15) Output Voltage (V 3.40 3.35 3.30 3.25 3.20 −40 − [° vs. Temperature (Ta) ...

Page 29

... OSC [V] ) vs. Power Supply Voltage ( [ 3 OUT kHz OSC [V] Seiko Instruments Inc. S-8353/8354 Series ) vs. Power Supply SSS Voltage ( 3 OUT OSC 100 [ OSC ...

Page 30

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series 3. Output Waveforms (V IN (1) S-8353A33 Output voltage [0. div] CONT voltage [ div] Output voltage [0. div] CONT voltage [ div] (2) S-8354H33 Output voltage [0. div] CONT voltage [ div] Output voltage [0 ...

Page 31

... V) IN 100 µA → [0. div] t [200 µs / div mA) OUT = 1.98 V → 2. [0. div] t [100 µs / div] Seiko Instruments Inc. S-8353/8354 Series I OUT div] I OUT div → 100 µ 100 µA V OUT div] = 2.64 V → ...

Page 32

... STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Reference Data Reference data is provided to determine specific external components. Therefore, the following data shows the characteristics of the recommended external components selected for various applications. 1. External Parts for Reference Data Table 19 Efficiency vs ...

Page 33

... Condition 1 S-8353H50MC (a) Output current (I OUT 100 0.01 0 OUT Condition 2 S-8353H50MC (a) Output current (I OUT 100 0.01 0 OUT Condition 3 S-8353H50MC (a) Output current (I OUT 100 0.01 0 OUT Condition 4 S-8354A50MC (a) Output current (I OUT 100 0.01 0 OUT ) vs. Efficiency (η) characteristics and (b) Output current (I OUT ) characteristics under the conditions of No ...

Page 34

... OUT 100 0.01 0 OUT Condition 7 S-8353A50MC (a) Output current (I OUT 100 0.01 0 OUT Condition 8 S-8353A33MC (a) Output current (I OUT 100 0.01 0 OUT 34 ) vs. Efficiency (η 100 1000 [mA] ) vs. Efficiency (η ...

Page 35

... OUT ) vs. Ripple voltage (Vr) characteristics and (b) Output current OUT ) characteristics under the conditions of No Table 19 . OUT Condition 2 S-8353H50MC 10 100 1000 [mA] Condition 4 S-8354A50MC 10 100 1000 [mA] Condition 6 S-8353A50MC 10 100 1000 [mA] Condition 8 S-8353A33MC 10 100 1000 [mA] Seiko Instruments Inc. S-8353/8354 Series 100 = ...

Page 36

... www.DataSheet4U.com ...

Page 37

... www.DataSheet4U.com ...

Page 38

... www.DataSheet4U.com ...

Page 39

... www.DataSheet4U.com ...

Page 40

... www.DataSheet4U.com ...

Page 41

... www.DataSheet4U.com ...

Page 42

... www.DataSheet4U.com ...

Page 43

... www.DataSheet4U.com ...

Page 44

... www.DataSheet4U.com ...

Page 45

... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...

Related keywords