IMXRT1160AXEC datasheet(38/130 Pages) NXP

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i.MX RT1160 Crossover Processors Data Sheet for Extended Industrial Products, Rev. 4, 06/2025

NXP Semiconductors

Electrical characteristics

4.2.4

DCDC

DCDC can be configured to operate on power-save mode when the load current is less than 50 mA. During

the power-save mode, the converter operates with reduced switching frequency in PFM mode and with a

minimum quiescent current to maintain high efficiency.

DCDC can detect the peak current in the P-channel switch. When the peak current exceeds the threshold,

DCDC will give an alert signal, and the threshold can be configured. By this way, DCDC can roughly

detect the current loading.

DCDC also includes the following protection functions:

• Over current protection. In run mode, DCDC shuts down when detecting abnormal large current in

the P-type power switch.

• Over voltage protection. DCDC shuts down when detecting the output voltage is too high.

• Low voltage detection. DCDC shuts down when detecting the input voltage is too low.

On-chip regulators are designed to power on-chip load only. Do not use on-chip regulators to power

external loads. DCDC_DIG is used to power VDD_SOC_IN. DCDC_ANA is a low-noise power rail used

to power on-chip analog loads only.

Table 21 shows DCDC characteristics.

Input voltage refers to DCDC_IN balls. 1.0 V output refers to DCDC_DIG balls. 1.8 V output refers to

DCDC_ANA balls.

Table 21. DCDC characteristics1

Description

Min

Typ

Max

Unit

Comments

Input voltage

3.3

3.6

—

Output voltage

• 1.0 V output

0.6

1.375

25 mV per step

• 1.8 V output

1.5

1.8

2.275

25 mV per step

• 1.0 V output

—

150

850

—

• 1.8 V output

—

150

Consider 1.8 V supply

currents in Table 12 to

ensure no DCDC

overload. Add currents

for active modules per

use case.

Efficiency

• DCDC run mode

—

80%

—

150 mA@vdd1p0

80 mA@vdd1p8

• DCDC low power mode

—

80%

—

300 A@vdd1p0

300 A@vdd1p8

Output voltage accuracy

IMXRT1160AXEC Datasheet(PDF) 38 Page - NXP Semiconductors

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