Datasheet > S-85S1PD09-I8T1U

S-85S1PD09-I8T1U

更新时间： 2022-05-14 22:07:40

品牌	Logo	应用领域
精工 - SII		监视器输入元件开关输出元件
页数	文件大小	规格书
38页	3547K
描述
POWER MONITORING OUTPUT, 5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT

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S-85S1PD09-I8T1U 数据手册

S-85S1P Series

POWER MONITORING OUTPUT,

5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN

SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT

www.sii-ic.com

Rev.1.3_00

The S-85S1P Series introduces own distinctive low power consumption control and COT (Constant On-Time) control and

features ultra low current consumption and fast transient response. PWM / PFM switching control automatically switches to

PFM control when under light load, and the IC operates at ultra low current consumption of 260 nA quiescent current. The

S-85S1P Series realizes high efficiency in a wide range of load current consumption and provides strong support for

extended period operation of mobile devices and wearable devices which are equipped with compact batteries.

The function of the power monitoring output is prepared in the S-85S1P Series. The power monitoring output is a function

that divides the input voltage (V_IN) of the DC-DC converter into V_IN/2 or V_IN/3 and outputs the voltage. For example, this

function makes it possible that the IC connects to a low voltage microcontroller A/D converter directly and the

microcontroller monitors a battery voltage.

 Features

 Applications

DC-DC converter block

• Ultra low current consumption:

• Efficiency (when under 100 μA load):

• Fast transient response:

• Input voltage:

• Wearable device

260 nA quiescent current

90.5%

COT control

• Bluetooth device

• Wireless sensor network device

• Healthcare equipment

• Smart meter

2.2 V to 5.5 V

• Output voltage:

0.7 V to 2.5 V, in 0.05 V step

2.6 V to 3.9 V, in 0.1 V step

1.5% (1.0 V ≤ V_OUT≤ 3.9 V)

15 mV (0.7 V ≤ V_OUT< 1.0 V)

1.0 MHz (at PWM operation)

420 mΩ

• Portable game device

• Output voltage accuracy:

 Package

• Switching frequency:

• SNT-8A

( 2.46 mm

• High side power MOS FET on-resistance:

• Low side power MOS FET on-resistance:

• Soft-start function:

× 1.97 mm × t0.5 mm max.)

320 mΩ

1 ms typ.

• Under voltage lockout function (UVLO):

• Thermal shutdown function:

1.8 V typ. (detection voltage)

135°C typ. (detection temperature)

450 mA (at L = 2.2 μH)

• Overcurrent limit function:

•

Automatic recovery type short-circuit protection function:Hiccup control

• Input and output capacitors:

Ceramic capacitor compatible

Power monitor block

• Low current consumption:

• Input voltage:

280 nA typ.

1.5 V to 5.5 V

V_IN/2 (S-85S1PCxx)

V_IN/3 (S-85S1PDxx)

• Output voltage:

Overall

• Operation temperature range:

• Lead-free (Sn 100%), halogen-free

Ta = −40°C to +85°C

 Typical Application Circuit

 Efficiency

V_OUT(S)= 1.8 V

2.2 H

OUT

100

VIN

10 F

OUT

10 F

IN = 2.5 V

PVSS

VOUT

IN = 3.6 V

IN = 4.2 V

PMEN

PMOUT

0.01

0.1

100 1000

VSS

0.22 F

OUT [mA]

12 3 4 5 6 7...38

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