PM6686 datasheet(13/50 Pages) STMICROELECTRONICS

13 / 50 page

PM6686

Electrical characteristics

Doc ID 15281 Rev 4

13/50

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Linear regulator and reference

LDO

LDO output voltage

LDO_SW = GND, 5.5 V < VIN < 28 V,

LDOREFIN < 0.3 V, 0 < ILDO < 100 mA

4.925 5.000 5.075

LDO_SW = GND, 5.5 V < VIN < 28 V,

LDOREFIN = VREF3,

0 < ILDO < 100 mA

3.250 3.300 3.350

LDO accuracy in adjustable

mode

VIN = 5.5 V to 28 V, LDOREFIN = 0.35 V

to 2.25 V, no load

-2.5

+2.5

LDO short circuit current

(linear regulator enabled)

LDO = 4.3 V, LDO_SW = GND

260

320

380

LDO_SW

LDO_SW switch on threshold

LDO = 5 V, rising edge of LDO_SW,

LDOREFIN = GND

4.64

4.75

4.84

LDO_SW

LDO_SW hysteresis

LDO = 5 V, falling edge of LDO_SW,

LDOREFIN = GND

200

400

LDO_SW switch resistance

LDO = 5 V, rising edge of LDO_SW,

LDOREFIN = GND,

output current = 200 mA

0.81

1.275

VREF3

VREF3 output voltage

No load

3.235 3.300 3.365

VREF3 current limit

VREF3 = GND

VREF2

VREF2 output voltage

No load

1.980 2.000

2.02

VREF2 load regulation

0 < Load < 50

μA6

VREF2 sink current

VREF2 > 2.030 V

µA

VIN shutdown current

EN1 and EN2 low, EN_LDO low

µA

VIN standby current

EN1 and EN2 low, EN_LDO high,

LDOREFIN = GND

132

180

µA

Operating power consumption

(VCC and VIN pins

consumption)

Switching regulators on,

FB1 = SKIP = GND, REFIN2 = VCC,

LDOREFIN = GND,

OUT1 = LDO_SW = 5.3V, OUT2 = 3.5 V

4,3

6,5

Fault management

PVCC UVLO threshold

Rising edge of PVCC

4.33

Falling edge of PVCC

Overvoltage trip threshold

Referred to FB1 nominal regulation point

+11

Referred to REFIN2 nominal regulation

point. worst case:REFIN2 = 0.7 V

+14

PG threshold

Lower threshold

-13

-10

-7

PG low voltage

ISink = 4 mA

159

235

405

PG leakage current

PG = 5 V

µA

Table 6.

Electrical characteristics (continued)

PM6686 数据表(PDF) 13 Page - STMicroelectronics

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