S-85V1A Series
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© ABLIC Inc., 2017-2018
5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN
SWITCHING REGULATOR WITH 10
A
QUIESCENT CURRENT
Rev.1.2
_00
The S-85V1A Series is a step-down switching regulator which features high efficiency and fast transient response.
Since PWM / PFM switching control automatically switches to PFM control when under light load, high efficiency is
realized. This IC is suitable for mobile devices and battery powered devices due to introduction of own distinctive COT
(Constant On-Time) control.
Also, high-density mounting is realized by adopting super-small, thin SNT-6A package. Therefore, the occupancy area
including a coil, an input capacitor and an output capacitor can be reduced to 2.0 mm
4.5 mm = 9.0 mm
2
, and it
contributes to miniaturization of electronic equipment.
Features
Current consumption:
Efficiency:
Fast transient response:
Input voltage:
Output voltage:
10
A
quiescent current
93%
COT control
2.2 V to 5.5 V
0.7 V to 2.5 V, in 0.05 V step
2.6 V to 3.9 V, in 0.1 V step
Output voltage accuracy:
1.5%
(1.0 V
V
OUT
3.9 V)
15
mV (0.7 V
V
OUT
1.0 V)
Switching frequency:
1.0 MHz (at PWM operation)
High side power MOS FET on-resistance:
450 m
Low side power MOS FET on-resistance:
350 m
Soft-start function:
1 ms typ.
Under voltage lockout function (UVLO):
1.8 V typ. (detection voltage)
135°C typ. (detection temperature)
Thermal shutdown function:
Overcurrent protection function:
450 mA (at L = 2.2
H)
Automatic recovery type short-circuit protection function:Hiccup control
Input and output capacitors:
Ceramic capacitor compatible
Operation temperature range:
Ta =
40°C
to
85°C
Lead-free (Sn 100%), halogen-free
Applications
Bluetooth device
Wireless sensor network device
Healthcare equipment
Smart meter
Portable game device
Remote control
Package
SNT-6A
(1.80 mm
1.57
mmt0.5 mm max.)
Typical Application Circuit
V
IN
C
IN
10
F
L
2.2
H
VIN
PVSS
EN
VSS
SW
VOUT
V
OUT
C
OUT
10
F
Efficiency
V
OUT(S)
= 1.8 V
100
80
60
40
20
0
0.1
1
V
IN
= 2.5 V
V
IN
= 3.6 V
V
IN
= 4.2 V
10
I
OUT
[mA]
100
1000
1
5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 10
μA
QUIESCENT CURRENT
Rev.1.2
_00
S-85V1A Series
Product Name Structure
Users can select output voltage for the S-85V1A Series. Refer to "1.
Product name"
regarding the contents of
product name, "2.
Package"
regarding the package, "3.
Product name list"
regarding details of the product
name.
1.
Product name
S-85V1A B
xx
-
I6T1
U
Environmental code
U:
Lead-free (Sn 100%), halogen-free
Package name abbreviation and packing specification
I6T1: SNT-6A, Tape
*2, *3
*1
Output voltage
07 to 39
(e.g., when the output voltage is 0.7 V, it is expressed as 07.)
*1.
*2.
*3.
Refer to the tape drawing.
Refer to "3.
Product name list".
In the range from 0.7 V to 2.5 V, the products which have 0.05 V step are also available.
Contact our sales office when the product is necessary.
2.
Package
Table 1
Package Name
SNT-6A
Dimension
PG006-A-P-SD
Package Drawing Codes
Tape
PG006-A-C-SD
Reel
PG006-A-R-SD
Land
PG006-A-L-SD
3
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