XC9303B093KR-G Torex Semiconductor, XC9303B093KR-G Datasheet

XC9303B093KR-G

Manufacturer Part Number

XC9303B093KR-G

Description

Specifications: PWM Type: Controller ; Number of Outputs: 1 ; Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) ; Packaging: Tape & Reel (TR) ; Duty Cycle: 88% ; Voltage - Supply: 2 V ~ 10 V ; Frequency - Max: 345kHz ; Buck: Yes ; Boost: Yes

Manufacturer

Torex Semiconductor

Datasheet

1.XC9303B093KR-G.pdf (20 pages)

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XC9303

High Efficiency, Synchronous Step-Up & Down DC / DC Controller ICs

■GENERAL DESCRIPTION

■TYPICAL APPLICATION CIRCUIT

■APPLICATIONS

●PDAs

●Palmtop computers

●Portable audios

●Various power supplies

The XC9303 series is highly efficient, synchronous PWM, PWM/PFM switchable step-up & down DC/DC controller ICs.

A versatile, large output current and high efficiency, step-up/down DC/DC controller can be realized using only basic

external components - transistors, coil, diode, capacitors, and resistors for detecting voltages. High efficiency is obtained

through the use of a synchronous rectification topology. The operation of the XC9303 series can be switched between PWM

and PWM/PFM (auto switching) externally using the PWM pin. In PWM/PFM mode, the XC9303 automatically switches

from PWM to PFM during light loads and high efficiencies can be achieved over a wide range of output loads conditions.

Output noise can be easily reduced with PWM control since the frequency is fixed. Synchronous rectification control can be

switched to non-synchronous by using external signals (MODE pin). High efficiency can be regulated at heavy loads when

synchronous operation. The XC9303 has a 0.9V (±2.0%) internal voltage supply and using externally connected

components, output voltage can be set freely between 2.0V to 6.0V. With an internal 300kHz switching frequency smaller

external components can be used. Soft-start time is internally set to 10ms and offers protection against in-rush currents

when the power is switched on and prevents voltage overshoot.

V IN :2.0V~10V

Tr1:Pch

P W M

:CPH6315

MOSFET

Tr2:Nch

CIN :47uF

:CPH3409

V DD

P W M

E X T 1

M OSFET

E X T 2

GND

Series

CDRH127/LD

Tr3:Nch

L:22uH

:CPH3409

MOSFET

SD:CM S02

: 6 2 p F

CFB

:200 kΩ

:75 kΩ

RFB

V OUT : 3 . 3 V

4 7 u F X 2

CL :

■FEATURES

Input Voltage Range

Output Voltage Range

Oscillation Frequency

Output Current

Stand-By Function

Maximum Duty Cycle

High Efficiency

Soft-Start Time

Package

Environmentally Friendly: EU RoHS Compliant, Pb Free

■TYPICAL PERFORMANCE

●Efficiency vs. Output Current

CHARACTERISTICS

100

XC9303B093K(300kHz, V

0.1

L=22uH(CDRH127/LD), CL=94uF(Tantalum),SD:CMS02

PW M/PFM Switching Control

Output Current I

Tr1:CPH6315, Tr2:CPH3409, Tr3:CPH3409

☆Green Operation Compatible

: 2.0V ~ 10V

: 2.0V ~ 6.0V

: 300kHz (±15%)

: 800mA(V

: 3.0μA (MAX.)

: 78% (TYP.)

: 84% (TYP.)

: 10ms (internally fixed)

: MSOP-8A

(set freely with V

VIN=2.7V

100

PW M Control

OUT

(mA)

=3.3V)

= 4.2V, V

1000

4.2V

=0.9V)

10000

ETR0602_004

OUT

=3.3V)

1/20

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XC9303B093KR-G Summary of contents

Page 1

XC9303 Series High Efficiency, Synchronous Step-Up & Down Controller ICs ■GENERAL DESCRIPTION The XC9303 series is highly efficient, synchronous PWM, PWM/PFM switchable step-up & down DC/DC controller ICs. A versatile, large output current and high efficiency, step-up/down ...

Page 2

XC9303 Series ■PIN CONFIGURATION 1 EXT1 EXT2 8 2 VDD GND 7 3 PWM MSOP-8A (TOP VIEW) ■PIN ASSIGNMENT PIN NUMBER PIN NAME 1 EXT 1 / External Transistor Drive Pin <Connected to High ...

Page 3

BLOCK DIAGRAM EXT1/ Error Vref=0.9V with Soft-Start ■ ABSOLUTE MAXIMUM RATINGS PARAMETER V Pin Voltage DD FB Pin Voltage CE Pin Voltage PWM Pin Voltage EXT1, 2 Pin Voltage EXT1, 2 ...

Page 4

XC9303 Series ■ ELECTRICAL CHARACTERISTICS XC9303B093 PARAMETER SYMBOL Supply Voltage V Maximum Input Voltage Output Voltage Range (*1) V OUTSET Supply Current 1 I Supply Current 2 I Stand-by Current I Oscillation Frequency FOSC FB Voltage V Minimum Operation Voltage ...

Page 5

OPERATIONAL EXPLANATION The XC9303 series are synchronous step-up & down DC/DC converter controller ICs with built-in high speed, low ON resistance drivers. <Error Amp.> The error amplifier is designed to monitor the output voltage and it compares the feedback ...

Page 6

XC9303 Series ■ OPERATIONAL EXPLANATION (Continued) <Output Voltage Setting (Continued)> [Example of Calculation: When R [Typical Example] [External Components] ■EXTERNAL COMPONENTS ●COIL PART NUMBER MANUFACTURER L VALUE (μH) CDRH127/LD-220 SUMIDA ●INPUT / OUTPUT CAPACITANCE PART NUMBER MANUFACTURER 16MCE476MD2 NICHICHEMI ●SCHOTTKY ...

Page 7

CIRCUITS Circuit ① Circuit ③ Circuit ⑤ External Components: Circuit ① L: 22μH (CDRH127/LD, SUMIDA) SD: CMS02 (Schottky Barriar Diode, TOSHIBA 16MCE476MD2 (Tantalum Type, NIHONCHEMICON 16MCE476MD2 (Tantalum Type, NIHONCHEMICON) IN PNP Tr1: 2SA1213 (TOSHIBA) ...

Page 8

XC9303 Series ■NOTES ON USE 1. PWM/PFM Automatic Switching If PWM/PFM automatic switching control is selected and the step-down ratio is high (e.g., from 1.0 V), the control mode remains in PFM setting over the whole load ...

Page 9

PERFORMANCE CHARACTERISTICS (1) Output Voltage vs. Output Current FOSC=300kHz, VOUT=3.3V L=22 μ H(CDRH127/LD), CL=94 μ F(Tantalum),SD:CMS02 Tr1:CPH6315, Tr2:CPH3409, Tr3:CPH3409 3.5 PWM/PFM Switching Control 3.4 PWM Control 3.3 3.2 VIN=2.7V 3.1 3.0 0 100 Output Current IOUT (mA) ...

Page 10

XC9303 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (3) Ripple Voltage vs. Output Current FOSC=300kHz, VOUT=3.3V L=22 μ H(CDRH127/LD), CL=94 μ F(Tantalum),SD:CMS02 Tr1:CPH6315, Tr2:CPH3409, Tr3:CPH3409 100 PWM Control 80 VIN=2.7V 3.3V 60 4. 100 Output ...

Page 11

PERFORMANCE CHARACTERISTICS (Continued) (4) Supply Current 1 vs. Supply Voltage XC9303B093 (300kHz) 600 500 o Topr=85 C 400 -40 C 300 200 100 Supply Voltage: VDD (V) (6) Stand-by Current ...

Page 12

XC9303 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (10) Maximum Duty Ratio vs. Supply Voltage XC9303B093 (300kHz Topr= Supply Voltage: V (12) EXT1 High ON Resistance vs. Supply Voltage XC9303B093 (300kHz) EXT1 ...

Page 13

PERFORMANCE CHARACTERISTICS (Continued) (16) Output Voltage vs. Ambient Temperature 1 XC9303B093 (300kHz) L=22uH (CDRH127/LD), CL=94uF (T antalum ) T r1:CPH6315, T r2:CPH3409,T r3:CPH3409 3.5 3.4 3.3 VIN=5.0V 3.2 IOUT=200mA 3.1 3.0 -50 - Ambient Temperature ...

Page 14

XC9303 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (19) Load Transient Response <V =3.3V, V =5.0V, I OUT1 OUT1, 2 ●Synchronous PWM Control FOSC=300kHz, VOUT=3.3V VIN=5.0V, IOUT=100mA → 100μA CH1 CH2 10msec/div CH1: VOUT, AC-COUPLED,100mV/div CH2: IOUT, 50mA/div ●Synchronous PWM/PFM ...

Page 15

PERFORMANCE CHARACTERISTICS (Continued) (19) Load Transient Response (Continued) <V =3.3V, V =2.7V, I OUT1 OUT1, 2 ●Synchronous PWM Control FOSC=300kHz, VOUT=3.3V VIN=5.0V, IOUT=300mA → 100μA CH1 CH2 10msec/div CH1: VOUT, AC-COUPLED, 100mV/div CH2: IOUT, 150mA/div ●Synchronous PWM/PFM ...

Page 16

XC9303 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (19) Load Transient Response (Continued) <V =3.3V, V =2.7V, I OUT1 OUT1, 2 ●Synchronous PWM Control FOSC=300kHz, VOUT=3.3V VIN=2.7V, IOUT=100mA → 100μA CH1 CH2 10msec/div CH1: VOUT, AC-COUPLED, 100mV/div CH2: IOUT, 50mA/div ...

Page 17

PERFORMANCE CHARACTERISTICS (Continued) (19) Load Transient Response (Continued) <V =3.3V, V =2.7V, I OUT1 OUT1, 2 ●Synchronous PWM Control FOSC=300kHz, VOUT=3.3V VIN=2.7V, IOUT=300mA → 100μA CH1 CH2 10msec/div CH1: VOUT, AC-COUPLED,100mV/div CH2: IOUT, 150mA/div ●Synchronous PWM/PFM Switching ...

Page 18

XC9303 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (19) Load Transient Response (Continued) <PWM Control ⇔ PWM/PFM Switching Control> FOSC=300kH, VOUT=3.3V VIN=5.0V, IOUT=1mA PW M ’H’ → ’L’ CH1 CH2 1msec/div CH1:VOUT , AC-COUPLED ,20mV/div CH2: 0.3V/div <Soft-Start Wave Form> ...

Page 19

PACKAGE INFORMATION ●MSOP-8A ■MARKING RULE ●MSOP-8A MSOP-8A (TOP VIEW) ① represents product series MARK 6 ② represents type of DC/DC Controller MARK B ③,④ represents out FB voltage MARK VOLTAGE (V) ③ ④ ⑤ represents oscillation frequency ...

Page 20

... Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this datasheet may be copied or reproduced without the prior permission of TOREX SEMICONDUCTOR LTD. 20/20 ...

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