S-1335 Series
www.sii-ic.com
HIGH RIPPLE-REJECTION SOFT-START FUNCTION
CMOS VOLTAGE REGULATOR
Rev.1.3
_01
© SII Semiconductor Corporation, 2012-2014
The S-1335 Series, developed by using the CMOS technology, is a positive voltage regulator IC of 150 mA output current,
which has low dropout voltage, high-accuracy output voltage and soft-start function.
The rising time of output voltage immediately after power-on or after the ON / OFF pin is set to ON is adjustable. A 1.0
μF
small ceramic capacitor can be used. It operates with low current consumption of 36
μA
typ. Furthermore the overcurrent
protection circuit prevents the load current from exceeding the capacity of output transistor.
SOT-23-5, SC-82AB and super small HSNT-4 (1010) packages realize high-density mounting.
Features
•
Output voltage:
•
Input voltage:
•
Output voltage accuracy:
•
Dropout voltage:
•
Current consumption:
•
Output current:
•
Input and output capacitors:
•
Ripple rejection:
•
Built-in soft-start circuit:
1.0 V to 3.6 V, selectable in 0.05 V step
1.5 V to 5.5 V
±1.0%
(1.0 V to 1.45 V output product:
±15
mV)
70 mV typ. (2.8 V output product, I
OUT
= 100 mA)
During operation: 36
μA
typ., 54
μA
max.
During power-off: 0.1
μA
typ., 1.0
μA
max.
Possible to output 150 mA (V
IN
≥
V
OUT(S)
+
1.0 V)
*1
A ceramic capacitor of 1.0
μF
or more can be used.
70 dB typ. (f = 10 kHz, V
OUT(S)
≤
2.5 V)
80 dB typ. (f = 1.0 kHz)
The rising time of output voltage immediately after power-on or after the
ON / OFF pin is set to ON is adjustable.
The soft-start time of SOT-23-5 can be switched to t
SS0
= 0.1 ms typ. /
t
SS1
= 1.0 ms typ. with the SST pin.
The soft-start time of SC-82AB is fixed to t
SS0
= 0.1 ms typ.
The soft-start time of HSNT-4 (1010) is fixed to either t
SS0
= 0.1 ms typ.
or t
SS1
= 1.0 ms typ.
Limits overcurrent of output transistor.
Ensures long battery life.
•
Built-in overcurrent protection circuit:
•
Built-in ON / OFF circuit:
•
Pull-down resistor is selectable.
•
Discharge shunt function is selectable.
•
Operation temperature range:
•
Lead-free (Sn 100%), halogen-free
*1.
Ta =
−40°C
to
+85°C
Attention should be paid to the power dissipation of the package when the output current is large.
Applications
•
Constant-voltage power supply for digital still camera, TV
•
Constant-voltage power supply for battery-powered device
•
Constant-voltage power supply for cellular phone
•
Constant-voltage power supply for portable equipment
Packages
•
SOT-23-5
•
SC-82AB
•
HSNT-4 (1010)
1
HIGH RIPPLE-REJECTION SOFT-START FUNCTION CMOS VOLTAGE REGULATOR
Rev.1.3
_01
S-1335 Series
Block Diagrams
1. S-1335 Series A / E type
*1
VIN
Overcurrent
protection
circuit
Soft-start
circuit
ON / OFF
ON / OFF
circuit
+
−
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Available
Available
A type: 0.1 ms
E type: 1.0 ms
Reference
voltage circuit
*1
VSS
*1.
Parasitic diode
Figure 1
2. S-1335 Series B / F type
*1
VIN
Overcurrent
protection
circuit
Soft-start
circuit
ON / OFF
ON / OFF
circuit
+
−
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Available
Unavailable
B type: 0.1 ms
F type: 1.0 ms
Reference
voltage circuit
*1
VSS
*1.
Parasitic diode
Figure 2
2
HIGH RIPPLE-REJECTION SOFT-START FUNCTION CMOS VOLTAGE REGULATOR
Rev.1.3
_01
S-1335 Series
3. S-1335 Series C / G type
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Unavailable
Available
C type: 0.1 ms
G type: 1.0 ms
*1
VIN
Overcurrent
protection
circui
Soft-start
circuit
ON / OFF
ON / OFF
circuit
+
−
VOUT
Reference
voltage circuit
VSS
*1.
Parasitic diode
Figure 3
4. S-1335 Series D / H type
*1
VIN
Overcurrent
protection
circuit
Soft-start
circuit
ON / OFF
ON / OFF
circuit
+
−
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Unavailable
Unavailable
D type: 0.1 ms
H type: 1.0 ms
Reference
voltage circuit
VSS
*1.
Parasitic diode
Figure 4
3
HIGH RIPPLE-REJECTION SOFT-START FUNCTION CMOS VOLTAGE REGULATOR
Rev.1.3
_01
S-1335 Series
5. S-1335 Series J type
*1
VIN
Overcurrent
protection
circuit
SST
Soft-start
circuit
ON / OFF
circuit
+
−
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Available
Available
0.1 ms / 1.0 ms
(Switchable)
ON / OFF
Reference
voltage circuit
*1
VSS
*1.
Parasitic diode
Figure 5
6. S-1335 Series K type
*1
VIN
Overcurrent
protection
circuit
VOUT
SST
Soft-start
circuit
ON / OFF
circuit
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Available
Unavailable
0.1 ms / 1.0 ms
(Switchable)
ON / OFF
+
−
Reference
voltage circuit
*1
VSS
*1.
Parasitic diode
Figure 6
4
HIGH RIPPLE-REJECTION SOFT-START FUNCTION CMOS VOLTAGE REGULATOR
Rev.1.3
_01
S-1335 Series
7. S-1335 Series L type
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Unavailable
Available
0.1 ms / 1.0 ms
(Switchable)
*1
VIN
Overcurrent
protection
circuit
VOUT
SST
Soft-start
circuit
ON / OFF
circuit
ON / OFF
+
−
Reference
voltage circuit
VSS
*1.
Parasitic diode
Figure 7
8. S-1335 Series M type
*1
VIN
Overcurrent
protection
circuit
VOUT
SST
Soft-start
circuit
ON / OFF
circuit
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Soft-start time
(typ.)
Status
Active "H"
Unavailable
Unavailable
0.1 ms / 1.0 ms
(Switchable)
ON / OFF
+
−
Reference
voltage circuit
VSS
*1.
Parasitic diode
Figure 8
5
嵌入式系统
