TS3063
800mA/180kHz Dc to Dc Converter Controller
SOP-8
MSOP-8
Pin Definition:
1. SC
5. Comp
2. SE
6. Vcc
3. CT
7. Ipk
4. Gnd
8. Vdriver
General Description
The TS3063 is a monolithic switching regulator and subsystem intended for use as DC to DC converter. It contains an
internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active peak current
limit circuit, drive and a high current output switch.
The TS3063 is specifically designed to be incorporated in step-up, step-down and voltage inverting converter
applications. The TS3063 is offered in SOP-8 and MSOP-8 package
Features
●
●
●
●
●
●
●
Power forward control circuit
Operating voltage from 3V to 40V
Low standby current
Current limit adjustable
Output switch current up to 800mA
Variable oscillator frequency up to 180kHz (max.)
Output voltage adjustable
Pin Description
Name
SC
SE
CT
GND
COMP.
V
CC
I
PK
V
DRIVER
Description
Switch Collector
Switch Emitter
Timing Capacitor
Ground
Comparator Inverting Input
V
CC
Collector
IPK Sense
Driver
Applications
●
●
●
Charger
xD-ROM, xDSL products
DC to DC converter
Ordering Information
Part No.
TS3063CS RL
TS3063CB RL
Package
SOP-8
MSOP-8
Packing
2.5Kpcs / 13” Reel
2.5Kpcs / 13” Reel
Schematic Diagram
1/9
Version: A07
TS3063
800mA/180kHz Dc to Dc Converter Controller
Absolute Maximum Rating
Parameter
Supply Voltage
Comparator Input Voltage Range
Switch Collector Output Voltage
Switch Emitter Voltage
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (note 1)
Output Switching Current
Power Dissipation
Junction Temperature Range
SOP-8
MSOP-8
Symbol
V
CC
V
FB
V
C(SW)
V
E(SW)
V
CE(SW)
V
C(DRIVER)
I
C(DRIVER)
I
SW
P
D
T
J
Maximum
40
- 0.3 ~ 40
40
40
40
40
100
800
0.5
0.35
+150
-65 ~ +150
Unit
V
V
V
V
V
V
mA
mA
W
o
o
C
C
Storage Temperature Range
T
STG
Note: Maximum package power dissipation limits must be observed
Electrical Characteristics
(V
CC
=5V, Ta =25
o
C; unless otherwise noted.)
Parameter
Oscillator (OSC)
Frequency
Charge Current
Discharge Current
Discharge to Charge current ratio
Current Limit Sense Voltage
F
OSC
I
CHARGE
C
T
= 100pF, Vpin5= 0V
V
CC
= 5V ~ 40V
--
30
180
5.2
250
--
30
230
6.5
--
180
45
290
7.5
350
KHz
uA
uA
--
mV
Symbol
Test Conditions
Min
Typ
Max
Unit
I
DISCHARGE
V
CC
= 5V ~ 40V
I
DISCHARGE
/
Pin7 to V
CC
I
CHARGE
V
IPK(SENSE)
I
DISCHARGE
= I
CHARGE
I
SW
= 0.8A,
pin1, 8 connected
I
SW
= 0.8A, Rpin8= 82ohm to
Vcc, force beta = 20
I
SW
= 0.8A, V
CE
= 5V
V
CE
= 40V
Output switch (note1)
Saturation Voltage
Saturation Voltage
DC current gain
Collector off-state current
V
CE(SAT)
V
CE(SAT)
H
FE
I
C(OFF)
V
REF
REG
LINE
V
CC
= 3V ~ 40V
V
CC
= 5V ~ 40V, C
T
= 1nF,
pin7= V
CC
, pin5> V
TH
,
pin2=Gnd, remaining pins
open
--
--
50
--
1.225
--
1.0
0.45
75
0.01
1.25
1.4
1.3
0.8
--
100
1.275
5
V
V
--
uA
V
mV
Comparator
Threshold Voltage
Line regulation
Total device
Supply Current
I
CC
--
3
4
mA
2/9
Version: A07
TS3063
800mA/180kHz Dc to Dc Converter Controller
Notes1: Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
temperature as possible
Note 2: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents
(≤300mA) and high driver currents (>=30mA), it may take up to 2uS for it to come out of saturation. This
condition will shorten the off time at frequencies >= 30KHz, and is magnified at high temperature. This
condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non-
Darlington configuration is used, the following output drive condition is recommended:
Forced Bata of output switch:
Ic output / (Ic driver – 7mA*) >= 10
* The 100ohm resistor in the emitter of the driver divide requires about 7mA before the output switch conducts.
Electrical Characteristics Curve
Figure 1. Output Switch On-Off Time vs. Oscillator
Timing Capacitor
Figure 2. Current Limit Sense Voltage vs.
Temperature
Figure 3. Standby Supply Current vs. Supply
Voltage
3/9
Version: A07
TS3063
800mA/180kHz Dc to Dc Converter Controller
Typical Application Circuit
Step-Down Converter
Quick Design Component Selection Table for 5V output version
L
(uH)
100
330
Cout
(uF)
470
470
CT
(pF)
150
200
Vin
(V)
12
40
Iin
(mA)
0.261
0.079
Pin
(W)
3.132
3.16
Vout
(V)
5.002
5.012
Iout
(A)
0.5
0.5
Pout
(W)
2.501
2.506
Frequency
(KHz)
96
36
η
(%)
80.3
79.3
4/9
Version: A07
TS3063
800mA/180kHz Dc to Dc Converter Controller
Typical Application Circuit (Continue)
Step-Up Converter
Quick Design Component Selection Table for 5V output version
L
(uH)
100
150
Cout
(uF)
100
100
CT
(pF)
150
180
Vin
(V)
5
5
Iin
(mA)
292
621
Pin
(W)
1.46
3.105
Vout
(V)
12.046
12.006
Iout
(A)
0.1
0.2
Pout
(W)
1.2046
2.4012
Frequency
(KHz)
178
166
η
(%)
82.5
77.3
5/9
Version: A07
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