STW4510 Datasheet, PDF (36/57 Pages) STMicroelectronics – 2 step-down DC/DC converters / 5 LDO power management

Electrical and timing characteristics
STw4510
4.2
Note:
Power supply
STw4510 sleep mode is only active with the presence of the 32 kHz clock on pin Clk32_in
and STw4510 has different ways to go in sleep mode.
In all the following tables:
● High power mode is defined as “SLEEP = ‘0’”,
● “Sleep mode” is defined as “SLEEP = ‘1’
4.2.1 Operating conditions
Table 16. Operating conditions
Symbol
Description
Test conditions
Min.
Typ.
Max.
Units
V_BAT
Power supply
2.7
5.5
V
I_QSLEEP
Quiescent current
Sleep mode
170
250
µA
I_QSTDBY
Off mode (T = 25°C)
t(s) ^{4.2.2 Vref18}
uc Table 17. Vref18
rod ^Symbol
Description
Test conditions
P V_BAT
te ^VREF_18
ole ^PSRR
Supply voltage
Output voltage
Power supply rejection
ratio
f ≤100 kHz
bs _Noise
100Hz ≤f ≤100 kHz
O _tS
Settling time⁽¹⁾
Obsolete ^{Product(s) - 1. Delay until Pon rises at high level and 1.8 V is available on Vref18 pin.}
Min.
2.7
1.78
Typ.
1.8
60
30
7.8
5
µA
Max.
5.5
1.84
10
Units
V
V
dB
µV
ms
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